Dear McLeod, I am a PhD student working with the Kendall package in R. I used this package to make the so-called TauKr matrix correlation analysis (Hemelrijk, 1990). However, lately I've been getting this warning: Error exit, tauk2. IFAULT = 12. From the forums I've been looking into, I noticed that when this warning pops up, it means that the p-value of the correlation may be wrong or not so accurate, is this correct? If this right, I would have nothing to worry about since the TauKr matrix correlation analysis uses the permutations to generate its own p-value. However if it is the tau value the one that is wrong assessed then I will have to make some adjustments to the analysis. I hope you can help me. Thanks you very much, Ivan Puga