On Tue, Apr 21, 2009 at 5:58 PM, Mathew Yeates <[email protected]> wrote:
> Hi > I posted something about this earlier > > Say I have 2 arrays X and Y with shapes (N,3) where N is large > I am doing the following > > for row in range(N): > result=polyfit(X[row,:],Y[row,:],1,full=True) # fit 3 points with a line > > This takes forever and I was hoping to find a way to speed things up. > But now I'm starting to wonder if this pointless. If the routine "poly > fit takes a long time, when compared with the time for a Python > function call, then things can't be sped up. > > ols with one regressor and 3 observations takes no time to calculate, I think you have (almost) only setup cost. Josef
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