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GEOG 5111 Post midterm > Post midterm 13-20 plus 4, 11, parts of 5 and 11 > Flashcards

Post midterm 13-20 plus 4, 11, parts of 5 and 11 Flashcards

1
Q

Equal Intervals

A

Method of classification. Each class occupies an equal interval along the number line. The class interval is determined by dividing the range of the data by the number of classes.

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2
Q

Mean Standard Deviation

A

Method of classification. determined by repeatedly adding and subtracting the standard deviations from the data. Drawback: only works with data that are normally distributed. You can transform the data but this won’t work if the object is to analyze raw data.

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3
Q

Natural Breaks

A

Method of classification. Minimizes differences between the data. Decisions are subjective.

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4
Q

Quantiles

A

Method of classification.

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5
Q

Maximum Breaks

A

Method of classification

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6
Q

Fisher-Jenks optimal

A

Method of classification. Pros: Does best job of considering how the data are distributed Cons: legend is difficult to understand, not acceptable for ordinal data.

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7
Q

GADF

A

Goodness of Absolute Deviation Fit. A measure of optimal classifications, with the median used as the measure of central tendency. Then we get the sum of the absolute deviations of the medians for the classes and sum the deviations of the median for the entire data set.

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8
Q

GVF

A

Goodness of Variance Fit. Similar to GADF, it is a measure that is computed when the mean is used as the measure of central tendency (and the error in a class is the sum of squared deviations of the mean)

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9
Q

flat laxity

A

mathematically optimal solutions may be ignored if other partitions have particular features we deem important.

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10
Q

Raster Image Processor (RIP)

A

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11
Q

Process Colors

A

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12
Q

Color Gamut

A

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13
Q

Offset Lithography

A

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14
Q

Proofing methods

A

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15
Q

Trapping

A

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16
Q

EPS

A

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17
Q

Screens

A

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18
Q

Spot Colors

A

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19
Q

Pre-Press

A

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20
Q

Dot Gain

A

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21
Q

PostScript

A

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22
Q

PDF

A

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23
Q

Cloropleth Map

A

Ideal for a phenomena that is normally distributed within each enumeration unit. Also better if units don’t significantly differ in size and shape. Raw data need to be adjusted to account for varying sizes of units. (data should be standarized or turned into ratios.)

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24
Q

What are the arguments for and against classed and unclassed maps?

A

.

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25
Q

What are the Munsell and Stevens curves for converting perceived blackness to percent area inked.

A

Munsell curve takes the largest perceived blackness and smallest perceived blackness and interpolates between for shades of grey. it is the most widely used method for deriving a grey scale. Stevens is more appropriate for unclassed maps because it uses magnitude estimation. one shade relative to the other.

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26
Q

How do you compare different kinds of Thematic maps?

A 
What is the primary use?
What are the Visual Variables?
What are the data requirements and issues?
What are the strengths and weaknesses?
What are the design issues?
What are the production issues? 
What are alternative forms?
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27
Q

What is he difference between Dasymetric mapping and dot mapping?

A

.

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28
Q

What is the difference between Dasymetric maps and cloropleth maps?

A

Like the chloropleth map, the dasymetric map displays standarized data using aerial symbols but bounds of symbols do not match bounds of enumeration units. Need ancillary data.

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29
Q

What is the difference between Dasymetric maps and isarythmic maps?

A

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30
Q

Ancillary Information

A

Other data which provides supporting data for the data being mapped. Limiting and Related attributes. Limiting gives you information about the limits where things should be placed. Related supports or correlates with the data being placed.

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31
Q

isarythms

A

Depict smooth, continuous data. Most common: a contour map.

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32
Q

isopleth map

A

uses conceptual data (assumption of continuity may not be met)

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33
Q

isometric map

A

uses true point data

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34
Q

triangulation

A

connecting neighboring points to form a set of triangles similar to those in manual contouring. Challenge is to find best set of triangles since entering the control points can result in different triangles. Delaunay triangles which minimize the distance over which interpolation must take place. by creating a Thessen polygon and connecting the control points of neighboring thiessen polygons.

35
Q

inverse-Distance

A

Also called gridding. Lay a grid on top of control points, estimate the values at each grid point as a function of the distance to control points and interpolate between them.

36
Q

hypsometric tints

A

shading the area between two contour lines

37
Q

hill shading

38
Q

isometric lines

39
Q

control points

40
Q

interpolation

A

Estimating a line between two data points

41
Q

Thiessen polygons

A

Drawing boundaries between control points such that all hypothetical points within a polygon are closer to that polygon’s control point than to any other control point.

42
Q

Contour lines

43
Q

fishnet

A

a netlike structure that simulates the 3d character of a smooth continuous surface.

44
Q

proportional symbols

A

Geometric or pictographic

45
Q

geometric symbols

A

circles and squares

46
Q

graduated symbols

47
Q

pictographic symbols

A

pictures and drawings representing the data in a proportional symbol map.

48
Q

range grading

A

data grouped into classes and a single symbol is used for a class

49
Q

perceptual scaling

A

a correction normally applied to compensate for mis-perception of larger symbols.

50
Q

unit value

51
Q

mathematical scaling

A

symbols sized in direct proportion to the data.

52
Q

Flannery’s constant

A

.57 added to the size of a circle in proportional symbol maps so that larger circles appear larger.

53
Q

Cluster Analysis

A

Hierarchical and non hierarchical.

54
Q

Integral symbols

55
Q

ray glyphs

56
Q

multivariate mapping

A

cartographic display of 2 or more variables

57
Q

bi-variate mapping

A

Only two variables are displayed.

58
Q

small multiples

A

Two or more maps displayed.

59
Q

separable symbols

60
Q

distance cartogram

61
Q

contiguous cartogram

62
Q

dorlings cartogram

A

Used for “human geography” not a geographical extent.

63
Q

network flow map

A

depict flows between networks like transportation networks.

64
Q

area cartogram

65
Q

non-continuous cartogram

66
Q

distributive flow map

A

depict movement of goods and services between geographic areas.

67
Q

continuous flow map.

68
Q

Raiz physiographic drawing

69
Q

block diagrams

70
Q

illuminated contours

71
Q

shaded relief

72
Q

panoramic views

73
Q

uncertainty

74
Q

positional accuracy.

75
Q

completeness

76
Q

intrinsic visual variable

77
Q

lineage

78
Q

attribute consistency

79
Q

logical consistency

80
Q

extrinsic visual variable.

81
Q

What are the factors in choosing the type of method of classification?

A
  1. Whether the method considers how data are distributed
  2. ease of understanding the method
  3. ease of computation
  4. ease of understanding the legend
  5. whether the method is acceptable for ordinal data
  6. whether the method can assist in selecting an appropriate number of classes.
82
Q

Kriging

A

produces an optimal interporlation.

83
Q

Pycnophylatic interpolation

A

raises each enumeration unit to a height proportional to the value of its associated control point.

GEOG 5111 Post midterm (1 decks)

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