R help - Oct 2011 - 'for' in steps

I want to use 
for (i in 1:time) 

but I want the increments to be monthly.

For example, if I'm adding interest to a virtual bank account monthly, for a
total of 'time' in years which the user has entered.

Is there a simple way of doing this please? I'm not familiar with many R
functions yet.

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Le 28/10/11 00:29, RhoR a ?crit :
> I want to use
> for (i in 1:time)
>
> but I want the increments to be monthly.
>
> For example, if I'm adding interest to a virtual bank account monthly,
for a
> total of 'time' in years which the user has entered.
If I understand well the problem:

for (i in 1:time) {

	for (j in 1:12) {
		# add the monthly interests
		# total number of months=(i-1)*12+j

	}
}

or simpler:

for (i in 1:(time*12)) {

}

Sincerely

On Oct 27, 2011, at 6:29 PM, RhoR wrote:
> I want to use
> for (i in 1:time)
That is insufficient to tell what sort of date or date-time object you  
intend. You may want to look at:

?ISOdate
?DateTimeClasses

 > ISOdate(2011, 1:12, 1)
  [1] "2011-01-01 12:00:00 GMT" "2011-02-01 12:00:00 GMT"
"2011-03-01
12:00:00 GMT"
  [4] "2011-04-01 12:00:00 GMT" "2011-05-01 12:00:00 GMT"
"2011-06-01
12:00:00 GMT"
  [7] "2011-07-01 12:00:00 GMT" "2011-08-01 12:00:00 GMT"
"2011-09-01
12:00:00 GMT"
[10] "2011-10-01 12:00:00 GMT" "2011-11-01 12:00:00 GMT"
"2011-12-01
12:00:00 GMT"
>
> but I want the increments to be monthly.
>
> For example, if I'm adding interest to a virtual bank account  
> monthly, for a
> total of 'time' in years which the user has entered.
>
> Is there a simple way of doing this please? I'm not familiar with  
> many R
> functions yet.
>
> --
> View this message in context:
http://r.789695.n4.nabble.com/for-in-steps-tp3946248p3946248.html
> Sent from the R help mailing list archive at Nabble.com.
>
> ______________________________________________
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David Winsemius, MD
West Hartford, CT