Exercise 15c: Changing plots in Prism

Go to parent GraphPad Prism statistical analyses

In Exercise 14: Box plots in Prism we created a box plot of babies' weight in function of the smoking behaviour of the mother.

Additionally we created an individual box plot for smoke=0 and for smoke=1. We will now combine these two individual boxplots into one plot. We will place the box plots in the following order (from left to right):

• smoking behaviour = 0: never (never smoked)
• smoking behaviour = 1: yes (still smokes)

Put the two boxplots in one single plot.
We need to import the second data set into the graph containing the box plot for the mothers that never smoked: Open the box plot of smoke=0 Click the Format graph button in the top toolbar. Go to the Data Sets on Graph tab In the Data on Graph section, click Add Select the data set you want to add Click OK

Return to plot containing the 5 box plots.

Change the title of the plot to "Effect of smoking on birth weight".
Click the title and type a new one.

Change the title of the Y-axis to "birth weight" and the title of the X-axis to "smoking behaviour mother".
Click the title and type a new one.

Align the outliers, this looks nicer.
Open the Format Graph window In the Data set section in the Appearance tab, select the Change ALL data sets In the Symbols section, set Outliers to Aligned Click OK

This generates the following plot:

Use the same symbol (circle) on each box plot.
Open the Format Graph window In the Data set section in the Appearance tab, select the Change ALL data sets In the Symbols section, set Shape to a circle Click OK

Color the boxes red with black borders.
Open the Format Graph window In the Data set section in the Appearance tab, select the Change ALL data sets In the Bars and boxes section, set the Fill of the boxes to red In the Bars and boxes section, set the Border color of the boxes to black Click OK

This generates the following plot: