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Last Post 12 Mar 2009 07:57 AM by  anon
Maximum-likelihood classification - prior probabilities
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anon



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12 Mar 2009 07:57 AM
    Hello there, I have some forestry data with known proportions of tree species. How I can apply it in ENVI as prior probability values in Maximum-likelihood classification?

    MariM



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    12 Mar 2009 11:31 AM
    Currently there is no way to input prior probabilities to the Maximum Likelihood classifier in ENVI.

    MariM



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    13 Mar 2009 07:04 AM
    There is a routine in IDL that may do what you want.  It is actually in the IMSL routines available with an IDL Advanced Math and Stats license. The IMSL_DISCR_ANALYSIS procedure performs a linear or a quadratic discriminant function analysis among several known groups.  This routine has a PRIOR_INPUT keyword that could be used.
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