Bar Chat同Histogram ge分別(英文)

Histogram ge bar係痴住 ge
Bar Chat ge bar係分開ge

2008-03-06 22:38:16 補充：
如果你講ge係用途上ge分別
咁應該係Histogram大部只係每條bar表示個group人ge人數
例如quiz之中0~20,21~40,41~60,61~80,81~100分,毎group ge人數
而Bar Chat 總之係同1個topic或有關ge野都記錄得

A bar chart, also known as a bar graph, is a chart with rectangular bars of lengths proportional to that value that they represent. Bar charts are used for comparing two or more values. The bars can be horizontally or vertically oriented. Sometimes a stretched graphic is used instead of a solid bar.

In statistics, a histogram is a graphical display of tabulated frequencies. A histogram is the graphical version of a table that shows what proportion of cases fall into each of several or many specified categories.

The histogram differs from a bar chart in that it is the area of the bar that denotes the value, not the height, a crucial distinction when the categories are not of uniform width (Lancaster, 1974). The categories are usually specified as non-overlapping intervals of some variable. The categories (bars) must be adjacent.