Systat Software Tech Bulletin

July 2014

In this edition:

Systat Software Online-Seminar

"SigmaPlot 12.5 - From Data to Presentation", Wednesday, 9th July 2014, 11 AM

Histograms (bar graphs of tabulated frequencies) can be created in SigmaPlot

1. from the Graph Analysis section of the Analysis ribbon
The built-bin Histogram graph function prompts for a data column, and for a column to write the interval frequencies. Then it prompts for the number of bins/intervals. It offers a default, but you can change that.

2. as a bar graph from the Create Graph ribbon.
The histograms created with method (1) are equidistant, e.g. each interval has the same width, and their width is determined by the number of intervals.
With method (2), you can create histograms with any series of intervals, also those with varying width. Calculate the frequencies first, then create a bar graph to display them.