Big thx, what is "-2" before t ? Paul
W dniu sobota, 19 kwietnia 2014 14:47:40 UTC+2 użytkownik Stefan Karpinski napisał: > > scale!(v, 1 .- 2t) > > > On Sat, Apr 19, 2014 at 5:11 AM, paul analyst <[email protected]<javascript:> > > wrote: > >> I have a logical vector t >> julia> t >> 1x4 BitArray{2}: >> true false false false >> >> and matrix v >> julia> v >> 4x4 Array {Float64, 2}: >> -0.0018187 -0.18174 0.982684 0.0360478 >> -0.018408 0.98314 0.1819 -0.00297265 >> -0.995394 -0.0167994 -0.00839779 0.0940118 >> 0.0940681 0.0111097 -0.0342677 0.994914 >> >> How quickly multiplied by -1 only the columns where vactor t = true ? >> Paul >> > >
