R help - Dec 2012 - How do you use agrep inside a loop

Hi all.

This is my first message at R-help...so I'm hoping I have some
beginner's
luck and get some good help for my problem!

FYI I have just started using R recently so my knowledge of R is pretty
preliminary.

Okay here is what I need help with - I need to know how to use agrep in a
 for loop.

I need to compare elements of a vector of names with other elements of the
same vector.

However if I use something like this:

for(i in 1:length(test1)-1)
{
  for(j in i+1:length(test1))
  {
  result[[i]][j] <- agrep(test1[i], test1[j], ignore.case = TRUE, value TRUE,
max.distance = 0.1)
  }

}

I get an error message saying - invalid 'pattern' argument. -* Error in
agrep(test1[i], test1[j], ignore.case = TRUE, value = TRUE, max.distance 0.1) :
*
*  invalid 'pattern' argument*

Test 1 being - c("Vashi", "Vashi,navi Mumbai",
"Thane", "Vashi,new Mumbai",
"Thana", "Surekha", "Thane(w)",
"surekhaN")

This is the first time I'm using agrep, I do not understand how it works
fully...

Kindly help...

Thank you.

Su.

	[[alternative HTML version deleted]]

Hi,

There is a mistake in the first line. It should be:
 > for(i in 1:(length(test1)-1))

Regards,
Pascal


Le 11/12/2012 16:01, surekha nagabhushan a ?crit :
> Hi all.
>
> This is my first message at R-help...so I'm hoping I have some
beginner's
> luck and get some good help for my problem!
>
> FYI I have just started using R recently so my knowledge of R is pretty
> preliminary.
>
> Okay here is what I need help with - I need to know how to use agrep in a
>   for loop.
>
> I need to compare elements of a vector of names with other elements of the
> same vector.
>
> However if I use something like this:
>
> for(i in 1:length(test1)-1)
> {
>    for(j in i+1:length(test1))
>    {
>    result[[i]][j] <- agrep(test1[i], test1[j], ignore.case = TRUE, value
> TRUE, max.distance = 0.1)
>    }
>
> }
>
> I get an error message saying - invalid 'pattern' argument. -*
Error in
> agrep(test1[i], test1[j], ignore.case = TRUE, value = TRUE, max.distance
> 0.1) : *
> *  invalid 'pattern' argument*
>
> Test 1 being - c("Vashi", "Vashi,navi Mumbai",
"Thane", "Vashi,new Mumbai",
> "Thana", "Surekha", "Thane(w)",
"surekhaN")
>
> This is the first time I'm using agrep, I do not understand how it
works
> fully...
>
> Kindly help...
>
> Thank you.
>
> Su.
>
> 	[[alternative HTML version deleted]]
>
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