LOADING DATA INTO ARRAYS

Sorin Gherman s_gherman at yahoo.com
Wed Jul 9 22:15:52 CEST 2003


It's easy, split returns a 3-elements list in your case, while you try 
to read that with just 2 elements, xval, yval.
Will work like this:
xval,yval,zval = string.split(line)

/sorin

> Hi,
> 
>      I am trying to collect the following data in X,Y,Z arrays as following:
>     
>   1.00000000000000        0.00000000000000D+000   0.00000000000000D+000
>   0.932113519778473       0.362166241174114        0.00000000000000D+000
>   0.737671227507627       0.675160099611485        0.00000000000000D+000
>   0.443073128844408       0.896485472551578        0.00000000000000D+000
>    8.83176797852179D-002  0.996092358889152        0.00000000000000D+000
>  -0.145819420809848       0.989311223283493        0.00000000000000D+000
>  -0.391263558087552       0.920278668726310        0.00000000000000D+000
>  -0.625821331717327       0.779966448488364        0.00000000000000D+000
>  -0.822296905793933       0.569058695322129        0.00000000000000D+000
>  -0.953713306870443       0.300717356163965        0.00000000000000D+000
> 
> After loading them into X,Y,Z arrays, I should be in a position to access the 
> first line as X[0],Y[0], Z[0] and second line stuff as X[1],Y[1],Z[1].
> 
> I have written the following code which is not working for some reason.  Can 
> anyone suggest any changes:
> 
> ifile1 = open('fluidcylinder', 'r')  #fluidcylinder contains the above data
> for line in ifile1:
>      xval,yval=string.split(line)
>      x.append(xval)
>      y.append(yval)
> 
> The error I am getting after the compilation is as follows:
> 
>  xval,yval=string.split(line)
> ValueError: unpack list of wrong size
> 
> 
> I would really appreciate if someone can help me with this.
> 
> Thanks in advance,
> 
> SATISH
> 
> 
> 
> 
> 





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