Hi Osama,

                  For your job you may try MatLab (for calculation) along with QGIS (for mapping). Both of these softwares are freely available.

Good luck

Supriti

you can try R software

thanks

If the data are in .NC files you can use any of the following packages  :

http://www.unidata.ucar.edu/software/netcdf/software.html

your question lack the basic information. Tell me what will your spatial patterns you want to investigate?

Matlab 2013+ is good software for anlysis and visulization of rain fall data even in text files, csv, excel.. etc

Muhammad Sallem, There are many tools and commands are not available in Matlab2013 as GIS to show the patterns accurately. 

Check this:

https://cran.r-project.org/doc/contrib/intro-spatial-rl.pdf

QGIS and GRASS GIS are open source alternatives to ArcGIS. On the math side,  GNU Octave is an open-source alternative to Matlab. As someone already said, R has packages for handling spatial data, specifically the SP and RGDAL packages.

I agree with you Alber. QGIS and GRASS are very good options. And we should include ILWIS (ITC) , a raster based GIS that has a strong academic background on Photogrammetry an Remote Sensing from the ITC experiance. There was an academic version that can be downloaded from the ITC site. QGIS is easy to use and has the capability to import imagery from very different sources, like ERDAS, etc.

Hope it helps.

Gabriel

Hello everybody,

I propose to use Surfer Software.

It is very easy to use and It offers different interpolation methods.

QGIS and GRASS are great tools!

Here's a link for some basic operations: http://grasswiki.osgeo.org/wiki/QGIS_GRASS_Cookbook

R is free and open source and easy to use. Also has a large community of developers and many documentation. With R you never need any proprietary software.

Put on Google "spatial pattern analysis in r" and take a look.

Also take a look on:

1. https://cran.r-project.org/web/views/Spatial.html

2. http://www.r-bloggers.com/the-power-of-ggplot2-in-arcgis-the-plotting-toolbox/?utm_source=feedburner&utm_medium=email&utm_campaign=Feed%3A+RBloggers+%28R+bloggers%29