Term
| steps to classifying data |
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Definition
1. Prior to classifying data, values are sorted in rank order
2. Selection of the number of classes
3. Selection of the classification procedure utilized
4. Analysis of classification accuracy |
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Term
| relative frequency distribution |
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Definition
| proportion of observations of a certain quality |
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Term
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Definition
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Term
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Definition
| class # = 1 + (3.3 x log(# of observations)) |
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Term
| Natural breaks Advantages & Disadvantages |
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Definition
-intuitive
-considers distribution
-subjective
-may miss natural clusters |
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Term
| equal frequency/quantiles advantages & disadvantages |
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Definition
-easily calculated
-doesn't consider distribution |
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Term
| Equal interval advantages & disadvantages |
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Definition
-easy computation
-easily understood.
-no consideration of distribution
-may produce classes with 0 observations |
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Term
| standard deviation advantages and disadvantages |
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Definition
-good for bell shaped data
-most data is skewed |
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Term
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Definition
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Term
| primary visual components are |
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Definition
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Term
| secondary visual variables |
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Definition
| pattern arrangement, pattern texture, pattern orientation |
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Term
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Definition
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Term
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Definition
| fixed numeric values, achieved by counting |
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Term
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Definition
| any number and any decimal. achieved with measurement |
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Term
| advantages of dot density |
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Definition
-multiple data sets possible
-effective way of illustrating varied spacial data |
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Term
| disadvantages of dot density |
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Definition
-original total difficult to calculate
-dot placement is random |
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Term
| the statical area with the lowest vale should have ----- dots |
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Definition
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Term
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Definition
| proper dot placement in the center of the the area it is representing |
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Term
| -choropleth -dot density -graduated symbol (& cartograms) -isarithmic map |
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Definition
-continuous phenomena & abrupt variation
-discrete phenomena & smooth variation
-discrete phenomena & abrupt variation
-continuous phenomena & smooth variation
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Term
| proportional symbol advantages |
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Definition
-visually pleasing
-easy to manipulate |
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Term
| proportional symbol disadvantages |
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Definition
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Term
proportional maps have ----- scaling
graduated maps have ------ scaling |
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Definition
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Term
| Flannery Method (apparent scaling) |
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Definition
| a mathod of symbol scaling that conforms to what people's perceived size increase is as opposed to the actual mathematical increase. |
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Term
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Definition
| Isorithmic map generated from points |
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Term
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Definition
| isarithmic map generated with data over a geographic area (per acre, per square mile) |
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Term
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Definition
| points were data is recorded or measured. |
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Term
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Definition
| cartogram where borders are separated among the enumeration units |
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Term
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Definition
| the degree to which a cartogram resembles the original shape of the geographic area |
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Term
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Definition
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Term
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Definition
| flow maps with emphasis with orgin and destination instead of the route |
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Term
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Definition
| all paths originate form a centroid |
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Term
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Definition
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Term
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Definition
| flow map that shows distribution, like a river |
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Term
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Definition
chain or array of types
displaying feature names |
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Term
| Locative symbol lettering |
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Definition
position of types aids in
locating features |
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Term
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Definition
| description of nominal classes of features using design attributes (fonts) |
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Term
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Definition
| Using variation in size, low/upper cases, tones it is possible to assign ranking characteristics to features |
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Term
| Linear features lettering |
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Definition
| with lettering along side and parallel to features, and generally above features |
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Term
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Definition
| lettering within the boundaries of the features, spaced to extend across the area but not dispersive or separated by other types |
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Term
| Typographic Design elements |
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Definition
– Type style
– Type form
– Type size
– Type color |
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Term
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Definition
-classic with flowing serifs
-modern with geometric serifs
-sans serif |
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Term
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Definition
classic & modern
or
modern & sans sarif |
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Term
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Definition
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Term
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Definition
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Term
| visible light spectrum in nm |
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Definition
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Term
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Definition
| direct light from the source vs light reflected off a surface |
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Term
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Definition
• based on spectrophotometer measurements of reflected light
• Commission on Illumination |
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Term
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Definition
• based on human perception of color and equal visual increments of color
• Munsell system, Natural Color System |
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Term
Computer displays use------
Printers use----- |
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Definition
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