[R] Calling Dynamic Variables names

[Petr PIKAL]

Hi

First of all you shall change your dataset structure to list. It will help 
you in future.


> 
> HI,
> 
> Need help in calling the dynamic variables 
> 
> I have 2 datasets . FIrst one(mdata) is having the metadata and second
> one(dataset) has got the data. 
> 
> sample 
> *mdata *
> Variable (header)
> 
> attribute1
> attribute2
> attribute3
> attribute4
> 
> *dataset *
> 
> attribute1     attribute2     attribute3    attribute4 
> 
> 1                             3                    34               12
> 3                             45                  1                  09
> 34                           22                  12               12
> 56                           6                     16              77
> ......................
> so i have written a forloop 
> 
> 
> code :  i want to find the mean for each attribites
> 
> for( i in mdata$vairable)
> {
>   print (mean(dataset$i)    # wants to call i value

In cycle you shall use different kind of subsetting.

print (mean(dataset[,i]))

Regards
Petr


> }
> 
> 
> please help in regard.
> 
> THanks,
> Santosh
> 
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> Dynamic-Variables-names-tp4514820p4514820.html
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