Error in duplicateCorrelation.. limma

[megcyan]

Hi,
I am trying to use the duplicateCorrelation function in limma for my data and I get an warning message

Warning messages:
1: In sqrt(dfitted.values) : NaNs produced
2: In sqrt(dfitted.values) : NaNs produced
3: In sqrt(dfitted.values) : NaNs produced
4: In sqrt(dfitted.values) : NaNs produced
5: In sqrt(dfitted.values) : NaNs produced
6: In sqrt(dfitted.values) : NaNs produced
7: In sqrt(dfitted.values) : NaNs produced
8: In sqrt(dfitted.values) : NaNs produced
9: In sqrt(dfitted.values) : NaNs produced
10: In sqrt(dfitted.values) : NaNs produced
11: In sqrt(dfitted.values) : NaNs produced

Does anybody have an idea how to go about this?? Or what might be wrong with the input??

[Gordon Smyth]

It's a warning not an error.

No way to tell whether you've made a mistake, because you don't tell us what you're trying to do or what you input to duplicateCorrelation.

Please read Section 2.3 "How to get help" in the limma User's Guide.