Hi there I would like to contribute a script that I have used in my research to the broader field. The script carries out linear regression, except that rather than using two rasters for the x and y variables, it uses any number of pairs of rasters, allowing the regression to be carried out across a time series, resulting in a slope, intercept and R^2 values for each pixel.
The crunch is that it is written in perl, as this is what I know best and it serves me well. I have done my best to conform to the stated standards, and I have produced a fairly detailed manual page. This will give you a better idea of what the script does, with examples. I attach the script and html here. I hope that you will consider making it available to others. Here at James Cook University, by the way, we are encouraging a switch from problematic and costly proprietary software to GRASS GIS. I am a major fan of GRASS, particularly on a Linux platform, and I am pleased that more and more students are listening. You should see a sharp rise in its use here in Queensland in the near future. Thanks Damien O'Grady
ogrady.tar.gz
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