histogram statistical analysis

[J2Int]

hi,
how to gather interval width and number of classes from a histogram of a large array.

[tony22]

To find the interval width, you just divide the range (max value - min value) of the data by the number of classes (bars in the histogram). For the number of classes, a common starting point is to use Sturges' formula: k = 1 + 3.322 log10(n), where n is the number of data points.