﻿ What's new? Parts-of-whole data
GraphPad Prism 8 User Guide

What's new? Parts-of-whole data

Parts of whole tables. Prism has always created structured data tables, and Prism 6 adds a sixth kind of table: Parts of Whole. As the name suggests, this  table is used for the kind of data where it makes sense to sum all the values in a data set column, and divide each value in the table into this total.

Pie charts and more. Each data set column in the parts of whole table can become its own pie chart, and each value represents one slice of the pie. Prism will graph column A automatically. To graph the other columns, use New...Graph of existing data.  Prism can also plot these kind of data as a donut plot, stacked bar plot, or a percentage dot plot.

A new fraction of total analysis computes each value in a table as a fraction or percent of its column total. In a parts of whole table, each value represents one slice in a pie chart defined by the sum of all the values in that column, so this analysis computes the fraction (or percentage) of the pie represented by each slice. It can also be used with contingency (or Column,  XY or Grouped, if needed and if there are no subcolumns) tables to compute each value as a fraction of its column total, its row total, or the grand total.

Compare an observed categorical distribution with an expected distribution using either the chi-square test (any number of categories) or the binomial test (works only with two categories).