[R] Request for Help

Caesar Nkambule CNkambule at csir.co.za
Mon Mar 14 09:42:47 CET 2011

Good Day 

The attached document refers.  I have recently attended an introduction course to R, and now wish to apply the program into my work analysis. 

The spreadsheet contains water quality data sampled from different locations within a catchment.

I wish to group the variables per point (Point Name), Year (all samples per year eg 1985 etc) These should be averages of each year. Lastly, I wish to plot graphs of all the chemical variables from 1985-2006 to analyze the trends in the concentration of water in the area.

I would like to request your assistance in developing the required commands.

Thanking you in advance.

Warm regards

Caesar Nkambule
Climate Studies & Modeling
CSIR Natural Resources & the Environment
Tel: 012 841 4439
Fax: 012 841 2597
Cell: 082921 6559 
Email: cnkambule at csir.co.za
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