atlas for R1.1.1 and R1.2 different?
Marcus Eger writes:
Douglas Bates wrote:
I don't think the presence or absence of atlas should affect the results from integrate. The atlas library is an enhanced, faster version of the basic linear algebra subroutines (blas) and a few of the lapack subroutines. Unless the C code in integrate is calling these subroutines explicitly, atlas should not affect the results.
An example for the different behaviour is the following:
... I'm wondering why the same integrate package under R1.1.1 uses atlas, but under R1.2 it doesn't.
The configure detection of fast BLAS libraries is different between these versions, but I don't think that this is the reason. I suspect that your R 1.1.1 is from a .deb file which requires package atlas2, and the R 1.2.0 is compiled from source but cannot find atlas (look at config.log) because package atlas2-dev is not installed. Bingo? -k -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-help-request at stat.math.ethz.ch _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._