search for: heydebreck

Full_Name: Anja von Heydebreck Version: 1.9.1 OS: Linux Submission from: (NULL) (155.250.128.25) I obtained a negative p-value from the fisher.test() function: > fisher.test(matrix(c(14576,3023,89,68),2), alternative="g")$p.value [1] -8.426593e-13 With R 1.8.1, I got a p-value of -6.239231e-12 for this example....

Full_Name: Anja von Heydebreck Version: 1.3.0 OS: Alpha Unix Submission from: (NULL) (141.14.19.61) Hi, I repeatedly obtained meaningless results from the function 'cutree' in the 'mva' package, when the argument 'h' was greater or equal to the maximum height occuring: > library('mva') &...

...), nrow=3) rownames(a) <- 1:3 x11() heatmap(a) x11() heatmap(a, labRow=rownames(a)) Is this really meant to work like this? - From the help of heatmap(), one might expect also user-supplied labels to be re-ordered together with the rows and columns of the matrix. Cheers, Anja -- Dr. Anja von Heydebreck Max Planck Institute for Molecular Genetics Dept. Computational Molecular Biology Ihnestr. 73 14195 Berlin, Germany heydebre at molgen.mpg.de phone: +49-30-8413-1168 http://www.molgen.mpg.de/~heydebre fax: +49-30-8413-1152

Greetings, I have "inherited" a cDNA macroarray dataset that is structured as follows. Three different stressors were tested. For each stressor, there are two treatments (control and stressed). For each treatment, two biological replicates exist, and these are paired (i.e., there is a stressed array for colony A and a control array from this same colony). For one of these samples,