I have made a table of log2 fold change ratios from several microarray studies.
For genes without statistically significant change I typed
0 (there are many such cases), other values are just log2 fold changes.
My question is, if it is possible to make clustering of such data? I could, of course, use raw values but I wanted to include only genes with significantly changed expression.
I have tried
R, it works but if it is sensible?