Based on the idea of visual programming,this paper used Borland Delphi 4 programming to realize the selection of classification numbers and drawing of the histogram.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.The program is convenient to use and its interface is friendly.
赵荣军. 用Delphi进行直方图的组数选择与绘制[J]. 物探与化探, 2000, 24(2): 150-153.
Zhao Rongjun . THE APPLICATION OF DELPHI TO THE SELECTION OF CLASSIFICATION NUMBERS AND DRAWING OF HISTOGRAM. Geophysical and Geochemical Exploration, 2000, 24(2): 150-153.