d because lack of data.
Cheers
Petr
> -Original Message-
> From: R-help [mailto:r-help-boun...@r-project.org] On Behalf Of
> Alexandra Catena
> Sent: Friday, April 10, 2015 11:07 PM
> To: r-help@r-project.org
> Subject: Re: [R] Finding values in a dataframe at a specified
Hi Alexandra,
I answered too quickly. Your response made me look for a deeper error: The
value of i doesn't matter, as it isn't being used as an index. However, the
first value of i=0 may cause the error in the second loop, where h is used
as an index.
for (i in 0:23){
hourRow = which(windHW$hou
Hi Jim,
Thanks for the response, but unfortunately it results in the same
error. I think it is something wrong with the if statement. I tried
it out manually for the first row and hour that it's testing and
indeed, the wind speed is not higher than the 5*sigma value. Since it
is not higher than
Hi Alexandra,
The error probably comes from the first iteration of i in 0:23. As indexing
in R begins at 1, there is no element 0. Try using:
for(i in 1:24) {
...
and see what happens.
Jim
On Sat, Apr 11, 2015 at 7:06 AM, Alexandra Catena wrote:
> Update:
>
> I have this so far. * The first
Update:
I have this so far. * The first column of windHW is the wind speed.
The 5th column of the dataframe, spring, is the 5*sigma value of every
hour. hourRow gives out all the rows of wind speed at a given hour.
for (i in 0:23){
hourRow = which(windHW$hour==i,arr.ind=TRUE)
for (h in hour
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