R help - Feb 2010 - CORRECTION - Storing results in a loop

Dear R Helpers

(There is a small correction in my earlier mail. In the 'instrument.csv'
file, I had mentioned only three columns. Actually there are 7 columns. I regret
the error. Rest contents remains the same. Thanks)

I have an 'instrument.csv' file with 7 instrument names and 5 rates each
i.e. it has 7 columns and 6 rows (including row names).
 
'instrument.csv'
 
instrument1      instrument2   ........     instrument7
12                         5                              14
11                         7                                7
14                       11                                3
  8                       21                              10
11                         3                                5
 
 
Following is my R code.
 
ONS = read.csv('Instrument.csv')
n = length(ONS)
 
Y = NULL
B = NULL
 
for (i in 1 : n)
 
 {
 
 Y[i] = ONS[i]
 
  for (j in 1 : length(Y[[i]])) 
   {
   B[j] = (Y[[i]][j])^2
   } 
 
 }
 
Problem is when I type B, I get the processed result only for the last column
i.e. Y[7]. It doesn't store results for Y[1] to Y[7].
 
I need B[1], B[2].......upto B[7]. 
 
Please guide me how do I store individual column processed results?
 
Thanking you all in advance
 
Regards
 
Madhavi
 



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maybe you just want

Y = ONS^2

?

b

On Mon, Feb 15, 2010 at 12:22 PM, Madhavi Bhave <madhavi_bhave at
yahoo.com> wrote:
> Dear R Helpers
>
> (There is a small correction in my earlier mail. In the
'instrument.csv' file, I had mentioned only three columns. Actually
there are 7 columns. I regret the error. Rest contents remains the same. Thanks)
>
> I have an 'instrument.csv' file with?7 instrument names and 5 rates
each i.e. it has 7 columns and?6 rows (including row names).
>
> 'instrument.csv'
>
> instrument1????? instrument2???........???? instrument7
> 12???????????????????????? 5?????????????????????????? ?? 14
> 11???????????????????????? 7??????????????????????????????? 7
> 14???????????????????????11?? ??????????????????????????? ?3
> ? 8?????????????????????? 21????????????????????????????? 10
> 11???????????????????????? 3??????????????????????????????? 5
>
>
> Following is my R code.
>
> ONS = read.csv('Instrument.csv')
> n = length(ONS)
>
> Y = NULL
> B = NULL
>
> for (i in 1 : n)
>
> ?{
>
> ?Y[i] = ONS[i]
>
> ??for (j in 1 : length(Y[[i]]))
> ???{
> ???B[j] = (Y[[i]][j])^2
> ???}
>
> ?}
>
> Problem is when I type B, I get the processed result only for the last
column i.e. Y[7]. It doesn't store results for Y[1] to Y[7].
>
> I need B[1], B[2].......upto B[7].
>
> Please guide me how do I store individual column processed results?
>
> Thanking you all in advance
>
> Regards
>
> Madhavi
>
>
>
>
> ? ? ?The INTERNET now has a personality. YOURS! See your Yahoo! Homepage.
> ? ? ? ?[[alternative HTML version deleted]]
>
>
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