On Sat, Jul 26, 2008 at 9:35 AM, Peter Dalgaard
<[EMAIL PROTECTED]> wrote:
> Henrique Dallazuanna wrote:
>>
>> Try this:
>>
>> x <- data.frame(A=c(10,20), B = c("a", "b"), C = c(20,30))
>> x[sapply(x, is.numeric)]
>>
>>
>
> Yes, and read ?Extract to clear up the confusion between data$vol and
> dat
Henrique Dallazuanna wrote:
Try this:
x <- data.frame(A=c(10,20), B = c("a", "b"), C = c(20,30))
x[sapply(x, is.numeric)]
Yes, and read ?Extract to clear up the confusion between data$vol and
data[257] and data[[257]] (Section on "Recursive (list-like) objects:").
Also, ?Extract.data.frame
Try this:
x <- data.frame(A=c(10,20), B = c("a", "b"), C = c(20,30))
x[sapply(x, is.numeric)]
On Sat, Jul 26, 2008 at 11:19 AM, Markus Mühlbacher <[EMAIL PROTECTED]> wrote:
> Hello,
>
> My question sounds simple, but as I am desperatly searchin for a solution I am
> asking you all. :)
>
> I try t
Hello,
My question sounds simple, but as I am desperatly searchin for a solution I am
asking you all. :)
I try to filter out all non-numeric columns of a data frame using a for loop
to go through all columns. My if clause looks like this:
for(j in 1:length(data)) {
...
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