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Unix Script to parse a CSV

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# 15  
Old 09-10-2008
Ok, so my last post wasn't very well thought out. I need to be able to find the std deviation of each row. The awk resources I have found seem indicate how to do this on each column, but not each row.
# 16  
Old 09-10-2008
Here is what I have so far. The problem is I can't get the square root. Also none of my math functions give me floating point numbers but that is a secondary problem.

Code:
 
for i in `cat file.csv ` 
do
     x1=0
     x2=0
     sigma=0
     IFS=, 
     for f in $i 
          do  
          let x1=$x1+$f
          let x2=$f*$f+$x2
     done 
     let x1=$x1/30
     let x2=$x2/30
     let sigma=sqrt($x2-$x1*$x1)
     echo "Mean = " $x1
     echo "Standard Deviation = " $sigma
done

Last edited by RJ17; 09-10-2008 at 06:15 PM..
# 17  
Old 09-10-2008
Please start a new thread for your new problem.
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