This macro produces a Bland-Altman Plot of paired data. The differences and averages of the data pairs are graphed with the center line and the limits of agreement (LOA). Plotted points beyond the LOA are identified in red.
Be sure that Minitab knows where to find your downloaded macro. Choose . Under Macro location browse to the location where you save macro files.
If you use an older web browser, when you click the Download button, the file may open in Quicktime, which shares the .mac file extension with Minitab macros. To save the macro, right-click the Download button and choose Save target as.
Suppose your paired data are in C1 and C2. To run the macro, choose type:
%BLANDALT C1 C2