频率分布直方图

程序能够绘制出[5,25]区间内各组数的原始或对数数据频率分布直方图图形，从而使用户能够直观地根据图形选择合适的直方图分组。

With the program , one can draw the frequency distribution histogram for original or logarithmic data of each classification in the range of [ 5,25 ] , thus enabling the users to choose suitable classification numbers of the histogram directly in accordance with the charts .

Au为颗粒状，Pb为较大面积的聚积状。它们的颗粒大小频率分布直方图由计算机与数字化仪联用计算测得。

Experimental histograms of particle size distribution were measured by the combination of computer and digitizer .

文章首先根据全国范围内的272站的频率分布直方图发现月降水量的空间分布的左偏型态，用洛仑兹曲线和基尼系数对中国月降水量水平空间分布非均匀性进行了准确描述。

At first , based on the 272 station monthly precipitation in china , the paper described the heterogeneous of the spatial distribution precipitation by use of the curve of Lorenz and the coefficient of G.