how to create average data from several rows?

[#1]

Hi, I have groups of mice, with tumours. Each group gets a specific treatment and tumour growth is measured daily. At the end of the experiment I have data for 3-4 groups, each group consisting of 4-5 mice, how do I create a graph of the data with one line for each group using the average daily measurements for the groups as the points on the lines?

here is part of the table:

where there are four members to each treatment group (with their order changing randomly each day) and a set of measurements for each day (d20, d21, d22 etc)

I need to plot the line for the averages (with error bars) like you can do in prism (my supervisor wants me to use jmp)

thanks for the help

[#2 · Accepted solution]

To perform analysis on your data, JMP needs the data organised 1 column per variable.  So your first step is to restructure your data so that you have a single column containing all tumour growth data (and one column for day).  To do this use the Stack command on the Tables menu and stack all the "d" columns:

This will give you a table organised like this:

If you want to generate summary stats (means and standard deviations) for each group for each day you can use the Summary command on the Tables menu:

Alternatively, if you want to graph the data with error bars, the Chart option under Graphs will perform the graphical equivalent of the Summary command:

-Dave