Dear Helmut,
I am trying this before but there is another error as d.mon command is not for windows. I am just comment off the d.mon in the i.spectral script then there is also get an error “expr: division by zero”. How I can solve it. Actually the problem seem to me is d.mon. Please suggest me d.mon alternative for windows then I can resize the script for windows.
Thanks in advance,
Swapan