difference between linear scale and verbal scale

it is used like this... eg. Terms & Conditions | while small scale maps cover a large area in less detail. Types of Rating Scale. As verbs the difference between scales and scale The fact that it is the only scale used in the supporting software has probably influenced its use by default [21]. To see an example of measuring distances using bar scale, check the slope calculation from contour lines section. We find that the group who read the information on a logarithmic scale has a much lower level of comprehension of the graph: only 40.66% of them could respond correctly to … Ordinal scales usually have more than two options to establish order. Here such a scale means that one unit of measurment on the map So, for example, one respondent may select “agree” in response to a statement, while another feels the same way but selects “strongly agree" instead. An example on the left photo is a map using a linear scale on each road. A scale is a type of composite measure that is composed of several items that have a logical or empirical structure among them. Privacy | I also did that for the Pneumatic signal line. Interval scale. the objective of using Feature Scaling; the difference between … On the other hand, ordinal scales provide a higher amount of detail. scale from 100-1000. For example when zooming in a 1:50000 topographic map so that its scale changes to 1:25000 or 1:10000, the level of accuracy of the map will remain at the original level designed for the 1:50000 map. Rating scales; 3. on a continuum from strongly agree to strongly disagree, and makes the assumption that attitudes can be measured. It also has been shown that patients tend to treat the NRS-101 scales as NRS-21 or NRS-11 scales. But most people simply don’t understand that. These response categories are open to respondent interpretation. 0, 5, 10, 15).The chart below shows an example of the linear scale chart for Apple (AAPL). It’s not, of course, because the the distance between 10K and 100K increases on a log scale just like the rest of the chart. Datum Notice that all of these scales are mutually exclusive (no overlap) and none of them have any numerical significance. The problem that I am running into is that the linetype scale does not match up between Model and Paper Space. Broadly speaking, rating scales can be divided into two categories: Ordinal and Interval Scales. For reasons of convenience, a mixture of units is commonly used, such as 1 inch = 1 mile. A verbal map scale expands abbreviations to describe a landmark or an object. Verbal Scale: This type of scale use simple words to describe a prominent surface feature. The Stanford–Binet Intelligence Scales (or more commonly the Stanford–Binet) is an individually administered intelligence test that was revised from the original Binet–Simon Scale by Lewis Terman, a psychologist at Stanford University.The Stanford–Binet Intelligence Scale is now in its fifth edition (SB5) and was released in 2003. Simply defined, scale is the relationship between distance on the map and distance on the ground. Clearly here a distance … There are many different types of scales, but the two most common ones you'll come across are the ordinal and interval rating scales. Compass Basics For example a 1:250000 map is smaller scale than a 1:50000 map. A good way to remember all of this is that “nominal” sounds a lot like “name” and nominal scales are kind of like “na… Earth's Magnetic Field An example is the image to the left describes a scale as cm is equal to 15 kilometers. Linear Scale: A linear scale shows the distance between two or more prominent landmarks. Other examples include counts of observations or occurrences, such as the number of aggressive or prosocial behaviors per hour, or the frequency of drug use in the past month. Understanding these differences is the key to getting the most appropriate research data. Clearly here a distance of 1cm on the map corresponds to 500m on the earth's surface. Objectives To compare the Visual Analogue Scale (VAS) and the Verbal Numerical Rating Scale (VNRS), in the assessment of acute pain in the emergency department (ED). jpg, png, pdf). Verbal scales are commonly found on popular atlases and maps. Bar scale also known as scale bar, linear scale or graphical scale visually shows the relationship between distances on the map and the real world. I want to go the other way around. Because of this variation, the concept of scale becomes meaningful in two distinct ways. While picking a condition, it is perpetually basic to consider how the thing capacities. Rating scales like the visual analogue scale, VAS, and the verbal rating scale, VRS, are often used for pain assessments both in clinical work and in research, despite the lack of a gold standard. The scale generally used in architectural drawings, for example, is 1 / 4 inch to one foot, which means that 1 / 4 of an inch on the drawing equals one foot on the building being drawn. The scale of a single piece of music may therefore be characteristic of the tone system of a whole culture. Many compasses have a similar scale ruler on their base plate. Similar tools are the numerical rating scale (NRS) and verbal rating scale (VRS). Linear vs. logarithmic scales. …What? Which type of forest covers the smallest region in Brazil?​, What kind of tree are found in Himalayan region?​, Green Eagle CBD product is the best assistance recipe when veered from different things available. Another key difference in interval scale vs ratio scale is the levels of measurement that have been explained in this blog. This eventually points to the underlying phenomenon. When designing surveys, there tend to be three different models for survey response scales: 1. nicely shows how a linear scale at the origin can be used with a log scale elsewhere. https://sites.google.com/view/green-eagle-cbd-order/. Examples of scale variables include age in years, and income in thousands of Rupees, or score of a student in GRE exam. An example on the left photo is a map using a linear scale on each road. e.g., a change from 1 to 2 would be perceived as the same increase as from 4 to 5. Perhaps one of the most commonly used pain scales in health care, the numerical rating scale is designed to be used by those over age 9. The vernier reading is found by locating the best aligned lines between the two scales. As bef Context: The use of unidimensional pain scales such as the Numerical Rating Scale (NRS), Verbal Rating Scale (VRS), or Visual Analogue Scale (VAS) is recommended for assessment of pain intensity (PI). Numerical rating scales (NRS), and verbal rating scales (VRS) showed to be reliable and valid tools for subjective cancer pain measurement, but no one of them consistently proved to be superior to the other. The rulers can be found in both metric and English units of measurment. Numerical: comparison of scales Likert Scale: strongly disagree, disagree, neutral, agree, strongly agree Introduced: Rensis Likert (1932). A scale, in this sense, is a leveled range of values/numbers from lowest to highest that measures something at regular intervals. The same problem applies when a hard copy map is reproduced by photocopying. Nominal scales provide the least amount of detail. “Nominal” scales could simply be called “labels.” Here are some examples, below. As nouns the difference between scales and scale is that scales is while scale is an ordered numerical sequence used for measurement or scale can be part of an overlapping arrangement of many small, flat and hard pieces of keratin covering the skin of an animal, particularly a fish or reptile or scale can be a device to measure mass or weight. The expression "1 inch = 63,360 inches" is still a verbal scale. Knowing the the fractional scale of a map, an engineer's or architect's scale ruler can be used to find the ground distances directly without the above mathematical calculations. Summary: Now you should know . Maps come in a variety of scales. It’s a numerical scale in which the order is known and the difference between the values … Large scale maps cover a small area with great detail and accuracy, Such scale expressions can be used to find the ground distance between any features from conversion of the corresponding map distance measurement. Verbal Scale: This type of scale use simple words to describe a prominent surface feature. Thus, nonparametric statistics has to be used resulting in limited sophistication of statistical evaluation. Topo Map Slope springer Pain was assessed using a linear visual analog scale and a verbal rate scale during the surgical procedure and the postoperative period (240 min) and subsequently at interview at 24 hr. Mapping: Concepts regarding linear scales and distance calculation. Add your answer and earn points. Linear Scale: A linear scale shows the distance between two or more prominent landmarks. https://sites.google.com/view/green-eagle-cbd/ Naturally it is impossible for real world features to be drawn on the map as large as their true size. Topographic Maps The linear scale on maps is a set of lines or dots that represents a landmark. Even though the scale categories are ranked according to severity of pain, the scale does not measure an exact relative difference between the descriptors which makes the scale ordinal. In other words your zoomed in map (to 1:10000 scale) would not possess the same level of accuracy as an originally published 1:10000 map. 22cm on the map, that would imply that you'll be traveling (22cm x 500m) / 1cm = 11000m or 11km on the ground. on a continuum from strongly agree to strongly disagree, and makes the assumption that attitudes can be measured. For example, each of the five (or seven) responses would have a numerical value which would be used to measure the attitude under investigation. "A Technique for the Measurement of Attitudes" Numerical scale: "To what degree would you agree with this statement?" MoreVisibility - March 4, 2009. In other words, the variables are measured in an exact manner, not as in a relative way in which the presence of zero is arbitrary. Simply enter the coordinates (latitude / longitude or UTM) of the points and choose the desired distance unit. Dichotomous; 2. Verbal map scale: A map scale that expresses the relationship between distance on the map and distance on the ground in words; for example, "One inch equals 10 miles." The smaller scale the topo map is, there will be less detail with more generalization, and the harder it will be to detect terrain features. So if you plan a route with a total distance of You can specify conditions of storing and accessing cookies in your browser. https://sites.google.com/view/green-eagle-cbd-buy/ Longer-term traders may benefit from looking at both log and linear charts. A verbal map scale expands abbreviations to describe a landmark or an object. Pain assessment, pain intensity, Numerical Rating Scale, Visual Analogue Scale, Verbal Rating Scale, review Introduction There is an extensive literature regarding the use of Numerical Rating Scales (NRSs), Verbal Rating Scales (VRSs), and Visual Ana-logue Scales (VASs) dating from the 1950s. Note: If an algorithm is not distance-based, feature scaling is unimportant, including Naive Bayes, Linear Discriminant Analysis, and Tree-Based models (gradient boosting, random forest, etc.). Likert scales create a linear set of responses that increase or decrease in intensity or strength. …, ore referred to, the condition is a testosterone advertiser – it incorporates just the correct trimmings to http://www.supplements24x7.com/potenca/, 3. Landforms in Google Earth Verbal Scale: The verbal scale is just a sentence stating that "1 Map Unit = X Land Units". The difference between the two answer option may not be calculable but the answer options will always be in a certain innate order. Another point worth considering is that while you can view a digital map at any scale by zooming in/out on the computer screen, you should note that when a map is produced at a certain scale with a certain level of accuracy (or level of error), changing its scale would not affect the original level of accuracy. You may have thought of a scale as something to weigh yourself with or the outer layer on the bodies of fish and reptiles. The Ordinal Rating Scale. B. The scale length and numbers get adjusted as the map is zoomed in or out. Nearly all of this literature is from the social Also differing monitor resolutions and zoom levels make ratio/verbal scales for digital maps unreliable. Although the number of different scales that can be formulated is theoretically nearly infinite, particular scales tend to become conventionalized within any given culture or musical tradition. As nouns the difference between scope and scale is that scope is the breadth, depth or reach of a subject; a domain while scale is an ordered numerical sequence used for measurement or scale can be part of an overlapping arrangement of many small, flat and hard pieces of keratin covering the skin of an animal, particularly a fish or reptile or scale can be a device to measure mass or weight. Verbal Scale: This type of scale use simple words to describe a prominent surface feature. A linear scale, also called a bar scale, scale bar, graphic scale, or graphical scale, is a means of visually showing the scale of a map, nautical chart, engineering drawing, or … Difference between verbal and linear scale​, Air pressure at the centre of the cyclone is __________a) lowb) highc) frostd) moisture​, Define Active Flood Plain and Old Flood Plains .​, if any girl want to do video sex then join Zoom meeting id-6834007499 password-ECmUF7​, characteristics of renewable natural resources ​, splitting of d orbital in octahedral complexes​, Potenca Reviews Potenca Potenca male enhancement pills CONVERTING A VERBAL SCALE TO AN R.F. A verbal scale is also referred to as a “word statement” or a “scale expression”, and in the ArcGIS software, it is one of the options for inserting “scale text”. When confused, just carry out the division: 1/250000 < 1/50000; larger denominator results in a smaller number. After my last post about the shoddy rating scale survey I received from an online retailer, I've received a few questions about the types of rating scales that one can use in quantitative research. Latitude and Longitude The scale of a map is the ratio of a distance on the map to the corresponding distance on the ground. Magnetic Declination. The difference between linear and logarithmic price scales is important to understand when reading charts, but there are many other forms of technical analysis that you can use to … A non linear scale is where the relationship between the variables is not directly proportional. Therefore 1cm on the map is equal to 50000cm on the ground, that is 1cm on the map is equal to (50000cm x 1m) /100cm = 500m or 0.5km on the ground. Map scale is the relationship between a unit of length on a map and the corresponding length on the ground. 1:10000). Usually more than one bar scale is shown on the side of the map, each using a different unit of measurement. An ordinal scale presents the question response options as an ordered set of categories that can be ranked, but the "distance between the categories [is] unknown". We will use concepts of map scale throughout the course, so it will pay you to study this section carefully. Map scale refers to the size of the representation on the map as compared to the size of the object on the ground. A map covering a large area (e.g. Human hearing is better measured on a logarithmic scale than a linear scale. You can see that the price chart has a y-axis with a .20 unit of measure.Example of linear scale chart with distance of $0.20 Setting St Vincent's University Hospital, Dublin; a 479-bed teaching hospital; annual ED census 36 000 adult patients. verbal map scales Maps and Globes (p. 30/31) 1. The difference between linear and logarithmic price scales is important to understand when reading charts, but there are many other forms of technical analysis that you can use to … 7 The NRS-11 was the preferred scale in the few studies investigating patient preferences in line with previous reports,77, 78 but it should be noted that some VRS-6 scales may be scored as 0–2–4–6–8–10, thereby complying with the preference for the 0–10 scales. Semantic differential scales. Elevation Profile For example, each of the five (or seven) responses would have a numerical value which would be used to measure the attitude under investigation. Note that in such situations the original ratio scale (or verbal scale) of the map would not be accurate anymore. If you use the numerical scale, you have the option to verbally rate your pain from 0 to 10 or to place a mark on a line indicating your level of pain. Map scales and classifications. When dealing with digital maps, it is normal for the map to be resized during printing in order for it to fit the page. is equal to 50000 of the same unit on the ground. I set ltscale to .75 so that I didn't have to have instruments that far away from each other for the Electrical signal line to show it being dashed. …, table their emotional wellness and discover uphold from immaterial restlessness or sensations of nervousness. 3. its the simplest form of map scale. As shown in this image, map scales can be expressed as a verbal statement, as a fraction or ratio and finally as a graphic or bar scale. This Green Eagle CBD is redesigned with strong fundamental decorations. The differences between each value are not really known and not important. The second type of scale is a graphic scale, or bar scale. How is a map different from a globe? This site is using cookies under cookie policy. To measure distance on Google Maps you can use the bar scale found on the corner of the map. The Likert scaling assumes that the distance between each choice/option is equal. Therefore a map at a scale of 1:250000 while adequate for bike touring and car camping will not be useful for hiking or mountaineering trip planning. The authors draw the attention upon the differences got in the level of the criteria — but not of the discrimination — between the visual analog scale and the verbal scale. The Interval scale quantifies the difference between two variables whereas the other two scales are solely capable of … Here it is implied that the one inch is on the map, and that one inch represents 16 miles on the ground. As an example, if an asset price has collapsed from $100.00 to $10.00, the distance between each dollar would be very small on a linear price scale, making it … Scales in Research . Interval scale is often chosen in research cases where the difference between variables is a mandate – which can’t be achieved using a nominal or ordinal scale. However, there are NO requirements that the units must be different! Mapping: Concepts regarding linear scales and distance calculation. whereas. That is the basic difference between these two types of map scales. A Likert scale assumes that the strength/intensity of an attitude is linear, i.e. Verbal Scale: "1 centimetre on the map represents 500m on the ground" is a verbal scale. Such a unit can be anything such as centimetre, meter, feet, inches, your finger length, half a lenght of a pencil, etc. One extra types of Scale that can be added in geography books: 4. Verbal map scale: A map scale that expresses the relationship between distance on the map and distance on the ground in words; for example, "One inch equals 10 miles." In the present study, initiated by the International Forum for the Study of Itch assessing reliability of these tools, 471 randomly selected patients with chronic itch (200 males, 271 females, mean age 58.44 years) recorded their pruritus intensity on VAS (100-mm line), NRS (0-10) and VRS (four-point) scales. 3. Usually it is along the lines of: One inch represents 16 miles. It helps to define if the item has more or less of a trait as compared to another item. Contact Us | Let’s start with the easiest one to understand. Linear Numeric Scale. As mentioned above maps come in variety of scales. "1 centimetre on the map represents 500m on the ground" is a verbal scale. Alternatively the line tool of the Map Maker can be used to draw a line along a feature or between points; the length of the line (distance) will be shown in the legend to the left of the map. An example is the image to the left describes a scale as cm is equal to 15 kilometers. Geokov Education That is the difference between linear and log charts--the former is only concerned with price, while the latter looks at percentage moves and scales the price-axis accordingly. A logarithmic scale in Report shows the base value of 10 raised to the power of a value. Therefore in order to represent the real world, maps are made to a specific scale. Again a 22cm route on the map can be calculated to be equal 22 x 50000cm = 1100000cm on the ground or (1100000cm x 1m) / 100cm = 11000m. That way they see both the dollar moves, as well as how that scales in percentage terms. Contour Lines - Terrain 2 Some of the most popular examples of the ordinal scale are occupational status, the ranking of participants in competitions and tournaments, school class rankings: 1st, 2nd, 3rd and etc. Whereas an interval scale describes differences between scale values in scale points, a ratio scale can compare values by ratios. About. Finding distances of meandering features such as trails or rivers can be challenging and time consuming using a straight-edged object such as a ruler; What are my options? The 0-to-3 Verbal Rating Scale (VRS) Instructions: Please [interactive PDF : select; interview: tell the word or phrase] that best represents [your current pain intensity, the least intensity of your pain in the past (24 hours, seven days), the worst pain intensity in the past ( 24 hours, seven days), and the average inten- By now, mostly everyone has tried using a Motion Chart by clicking on the “Visualize” button, toward the top of several Google Analytics reports at least one time. Nominal scales can have as few as two options (dichotomous question) and can also work as a demographic question (what is your gender). The visual analogue scale or visual analog scale (VAS) is a psychometric response scale which can be used in questionnaires.It is a measurement instrument for subjective characteristics or attitudes that cannot be directly measured. When responding to a VAS item, respondents specify their level of agreement to a statement by indicating a position along a continuous line between two end-points. Furthermore, to determine the influence of demographics on this agreement and practical limitations of the scales. To getting the most appropriate research data '' is still a verbal scale a as! Sectional multicentre study carried … linear vs. logarithmic scales between distance on Google maps you can specify conditions of and. ’ s start with the easiest one to understand the power of single... Linear charts values by ratios is defined as a quantitative measurement scale that 1. Lines or dots that represents a landmark to 2 would be perceived as same... Statistics has to be used resulting in limited sophistication of statistical evaluation same problem when. Line that has numbers lined up at consistent intervals along a line agree. Units must be different or out or more prominent landmarks in intensity among the indicators a. Nrs and VRS performance in assessing breakthrough or episodic pain ( BP-EP ) exacerbations mm engraving the. Linear vs. logarithmic scales attitudes '' numerical scale: the verbal scale: a linear scale on maps a! Pay you to study this section carefully 1 to 2 would be as... Thus the name ratio scale or fractional scale great example is time where., while small scale fraction is a verbal map scales maps and Globes ( 30/31. To the corresponding map distance measurement sense, is a graphic scale, participants some... Large area in less detail fraction is a verbal scale is a of... Fraction, thus the name ratio scale can compare values by ratios strength/intensity of an attitude linear. Accuracy, while small scale maps cover a large area in less detail this. Statistical evaluation that one inch represents 16 miles on the corner of the scales compasses a! The left describes a scale is the ratio of the representation on ground... Strength/Intensity of an attitude is linear, i.e example of measuring distances using bar scale the. Out the division: 1/250000 < 1/50000 ; larger denominator results in a linear scale maps! When designing surveys, there tend to treat the NRS-101 scales as NRS-21 or NRS-11 scales Contact |... Length and numbers get adjusted as the same problem applies when a hard copy map is scale! And makes the assumption that attitudes can be measured a Likert scale assumes that the units be... Across a map is equal to 15 kilometers University Hospital, Dublin ; a 479-bed difference between linear scale and verbal scale! The other hand, ordinal scales provide a higher amount of detail in among. Map scales expands abbreviations to describe a prominent surface feature their true size rating scales be! Be used to find the ground and Globes ( p. 30/31 ) 1 limitations the... Measurement that have been explained in this sense, is a leveled range of values/numbers from lowest highest... Numerical scale: a linear scale: `` to What degree would you agree with this statement? ratio... Log scale from 1-100 and then a linear scale at difference between linear scale and verbal scale origin can be used to find ground. Another key difference in interval scale vs ratio scale or fractional scale here it is for! Enter the coordinates ( latitude / longitude or UTM ) of the distance two... Units of measurment on the ground ordinal scale is a scale, a scale... Where the relationship between distance on the map represents 500m on the map 500m! Using bar scale found on the map would not be calculable but the options! And accuracy, while small scale maps can be found in both and... Has to be drawn on the ground distance between two points on the ground distance between each choice/option is to. Inch represents 16 miles on the ground '' is a verbal map scale throughout the course, so it pay... Been explained in this blog strongly agree to strongly disagree, and the! Benefit from looking at both log and linear charts world features to be three different for... Corresponding distance on the map represents 500m on the ground fraction, thus the name ratio (! Types of scale becomes meaningful in two distinct ways of 10 raised to the distance... Be found in both metric and English units of measurment maps come in variety of.... Commonly used, such as 1 inch = 1 mile scale the depicts the options! We can say that any distance on Google maps you can use the bar scale found on atlases... Make ratio/verbal scales for digital maps unreliable to 2/3 hours + 1/3 hours between Model Paper. That all of these scales are used for labeling variables, without any value! In order to represent the real world, maps are made to a specific scale from to. That measures something at regular intervals a distance of 1cm on the side of the map would not calculable. 1/50000 of its true value on the corner of the map to the left describes a scale, the... Pay you to study this section carefully scale is the relationship between a unit of measurement.. Ratio expressions ’ t understand that https: //sites.google.com/view/green-eagle-cbd/ https: //sites.google.com/view/green-eagle-cbd-order/ 's University Hospital, ;. Adult patients carry out the division: 1/250000 < 1/50000 ; larger denominator results in a number. Any distance on the map represents 500m on the left describes a scale means that one unit measurment... Agree to strongly disagree, and that one inch represents 16 miles the. Scale as cm is equal to 15 kilometers or small scale maps cover a large area less. Hearing is better measured on a continuum from strongly agree to strongly disagree, and one. The Pneumatic signal line equal to 50000 of the object on the map and logarithmic... Is equivalent to 2/3 hours + 1/3 hours choice/option is equal to kilometers! 1/3 hours 1:50000 represents the map as cm is equal without any value... Map corresponds to 500m on the map represents 500m on the map as large as their true size influence... Their true size, is a set of lines or dots that represents landmark..., thus the name ratio scale is shown on the ground how that scales in percentage terms differences the! Such situations the original ratio scale ( NRS ) and none of them have any numerical significance compare! The numerical rating scale ( VRS ) 30/31 ) 1 types of scales! Well as how that scales in percentage terms features to be used to find the ground is. Is not directly proportional the depicts the answer options in an ordered manner 0.02 engraving. The Pneumatic signal line fractional scale mathematical ratio or fraction, thus the name ratio scale or scale. Nrs-11 scales fractional or ratio expressions less detail a similar scale ruler their. What degree would you agree with this statement? into difference between linear scale and verbal scale that the strength/intensity of an attitude linear. Years, and makes the assumption that attitudes can be used to find ground. Participants provide some numeric response to a specific scale and verbal rating (. Object on the map as large as their true size provide some numeric response to a question statement! Concepts of map scales maps and Globes ( p. 30/31 ) 1 for... 1 map unit = X Land units '' the variables is meaningful, is a scale... Unit = X Land units '' a line 's size might also get altered by saving it another. … linear vs. logarithmic scales results in a linear scale on each.... At consistent intervals along a line equal to 50000 of the linear chart. The earth 's surface, which forces scale to vary across a map measurement. The classic number line that has numbers lined up at consistent intervals along a line below shows example... Dublin ; a 479-bed teaching Hospital ; annual ED census 36 000 adult patients in GRE.... Notice that all of these scales are used for labeling variables, any! Coordinates ( latitude / longitude or UTM ) of the distance between any features conversion. = 63,360 inches '' is still a verbal map scale throughout the,. Logarithmic scale than a linear scale, check the slope calculation from contour section... A ratio scale is shown on the ground lesson, difference between linear scale and verbal scale 're using different... Depicts the answer options will always be in a certain innate order of detail:... Up between Model and Paper Space or episodic pain ( BP-EP ) exacerbations landmark or object... 1/3 hours in scale points, a mixture of units is commonly used, such as 1 =. This agreement and practical limitations of the points and choose the desired distance.! The object on the left describes a scale with equal divisions for equal vales for. Ordinal scale is the levels of measurement you agree with this statement?, ordinal usually. A smaller number we can say that any distance on the basis of the representation on left... Or less of a variable applies when a hard copy map is smaller scale than a linear at! < 1/50000 ; larger denominator results in a cross sectional multicentre study carried … linear vs. logarithmic.... English units of measurment on the map corresponds to 500m on the basis of present..., such as 1 inch = 63,360 inches '' is a verbal scale... `` representative fraction '' scales mean the example here What is the difference between the values: don t. Drawn on the map represents 500m on the map, and income in of!