Standardized Precipitation Index

gamfit,gamcdf,norminv is used.

Description

reference http://climate.colostate.edu/pub/spi.pdf

• Required Products: Statistics Toolbox
• MATLAB release: MATLAB 7.8 (R2009a)
• Other requirements: Gamma distribution embedded in matlab is employed.

[iap ??]

it is very helpful!
but I can't understand the 'nseas' well?
can you give some in-depth instruction?

thanks!

[Yue Yan]

 

[Madeleine P.]

I can't get this to work.... the script executes successfully, in that I don't get any error messages, but returns an empty array of Z[]... I have posted a question on matlab central to ask for some advice... any suggestions for debugging would be helpful, thanks.