[R] startup loading issue

I thought I was loading a ~300M binary (bigwig) file into another application, but the window changed to the R GUI without my realizing it and R tried to load the file. I’m on a Mac M1-based laptop with system 12.5.1 and 8G of ram, running R 4.2.1 (Intel version). According to ActivityMonitor, R

Re: [R] R matrix multiplication slowdown

> On January 26, 2017 2:21:07 PM PST, ken eagle > wrote: > >Hi all. A question about performance of matrix multiplication. > > > > > > > >I have two relatively large matrices: > > > > > > > >A is 100x3072, all integers 0-255, not sparse

[R] R matrix multiplication slowdown

Hi all. A question about performance of matrix multiplication. I have two relatively large matrices: A is 100x3072, all integers 0-255, not sparse B is 1016x3072, all integers 0-255, not sparse The command z<-B %*% t(A) works fine and takes roughly 0.2 seconds . If I add one row to B, t