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Category Archives: Statistical Techniques
Measures of Central Tendency :An Overview
A measure of central tendency is a single representative value that attempts to describe a set of data by identifying the central position within that set of data. As such, measures of central tendency are sometimes called measures of central … Continue reading
Scales in Geography: An Overview and Simple Method of Constructing Scales
The word scale is generally used for an instrument used for drawing straight lines. But actually in Geographer’s language scale means the proportion or ratio between the dimensions adopted for the map and the corresponding dimensions on the ground. It … Continue reading
GIS:Spatial Data
SPATIAL DATA TYPES In a GIS, the Locational information is provided in maps by using Points, Lines and Polygons. These geometric descriptions are the basic data elements of a map. 1. Points: They are represented as a single ‘Dot ‘on … Continue reading
Posted in GIS, Remote Sensing 101, Statistical Techniques
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Pie Chart
A pie chart is a circular chart divided into sectors, illustrating relative magnitudes or frequencies or percents. In a pie chart, the arc length of each sector (and consequently its central angle and area), is proportional to the quantity it … Continue reading