R2mim: Output a script file to WinMIM

In SAGx: Statistical Analysis of the GeneChip

Description

Given a candidate probe, it produces a script file for WinMIM by calculating means and covariances and for the N most highly correlated probes (in absolute value). Here N is an input parameter, but a recommended value 10. WinMIM can find a relevant graphical model for the dependencies between the probes.

Usage

R2mim(probe="12345_at", N=10, data=inm, out="u:/study/copd/mimscr.txt")

Arguments

probe	The name of the candidate probe
N	The number of highly correlated probes to be studied
data	The input data set
out	The MIM script file

Value

The correlation matrix

Note

David Edwards' program WinMIM can be found on StatLib (http://lib.stat.cmu.edu/graphmod/). In MIM issue input mimscr.txt and the calculations to find a model will start. When finished go to the Graphics menu and click on Independence Graph. The resulting graph can be exported both to WMF and LaTeX.

Author(s)

Per Broberg

References

Edwards, David (1995) Introduction to Graphical Modelling. Springer-Verlag
Lauritzen, Steffen (1996) Graphical Models. Oxford University Press
Whittaker, Joe (1990) Graphical Models in Multivariate Analysis. Wiley

SAGx documentation built on Nov. 8, 2020, 8:18 p.m.