histogram is a graphical display of tabulated frequencies. It shows what proportion of cases fall into each of several categories. There is a difference between a histogram and a bar chart in the sense that it is the area of the bar that dictates the value, not the height, which is a very important difference particularly when the variables are not all the same width.
http://www.daisy2000.com/Daisy2003/HorizontalHistogram.gif
1 comment:
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