Exercise 15b: Changing plots in Prism

Go to parent GraphPad Prism statistical analyses

In exercise 7 we created a scatter plot of the untransformed galileo data set.

Change the symbols on the graph to +.
Click the Format Graph button in the Change section of the upper toolbar In the Show symbols section of the Appearance tab change the Shape of the symbols Click OK

This generates the following plot:

Change the symbols on the graph to a red dot.
In the Show symbols section of the Appearance tab of the Format Graph window, change the shape and the color of the symbol: Click OK.

This generates the following plot:

Increase the size of the title.
Click the title on the graph to select it Increase the size of the text in the text section of the upper toolbar e.g. to 20

This generates the following plot:

Connect the data points on the plot by black lines.
Select the Show connecting line/curve box of the Appearance tab of the Format Graph window Change the color of the line Click OK

This generates the following plot:

Replace the full line by a dotted line.
In the Show connecting line/curve section of the Appearance tab of the Format Graph window, change the pattern of the line: [ Click OK.

This generates the following plot:

Reset axes to X: 500 -> 1600 and Y: 200 -> 600.
Click the Format Axes button in the Change section of the upper toolbar In the X axis tab, deselect Automatically determine the range and interval In the Range section, you can set the range of the X-axis: You can do the same for the Y-axis in the Left Y axis tab. When the ranges of both axes are set, click OK.

This generates the following plot:

Calculate the mean height in the galileo data set.
Click the Analyze button in the Analyze section of the upper toolbar Select Column statistics in the XY analyses section Click OK In the Parameters window select to calculate the mean (and a confidence interval if you want) Click OK This generates the following result:

Add the mean height to the galileo plot.

The mean height is 434 so we want to include a straight line at Y=434 in the plot. To do this we must create a new XY table with one X at 500: the minimum value on the X axis in the galileo plot one X on 1600: the maximum value on the X axis in the galileo plot So this is what the new table should look like: Give the table a meaningful name e.g. Mean galileo. Now we need to import this data set into the galileo graph: Go to the Data Sets on Graph tab of the Format Graph window In the Data on Graph section click Add This opens the Add Data Sets to Graph window where you can browse and select the data set you want to add: Click OK twice.

This generates the following plot:

Replace Legend by mean(h).
Double click the text of the Legend to select it Once you have selected it, just type the text that you want

This generates the following plot:

Replace the mean line by a red line without any symbols.
Open the Format Graph window In the Data set section in the Appearance tab, select the Mean galileo data set Deselect Show symbols In the Show connecting line/curve section change the color of the line Click OK

This generates the following plot: