Hi,
I am sorry if I am misunderstanding what you are trying to do here, but can
you simplify it this way?
(unfortualtely, this is untested since I dont have a suitable set of files
and a directory structure to test against)
dbifiles <- list.files(pattern="*.dbi",recursive=TRUE)
csvfiles <- gsub
I suspect much if not all of your trouble would be eliminated by using
file.path() instead of paste0().
https://www.rdocumentation.org/packages/base/versions/3.6.2/topics/file.path
(Also check your file name - you probably want a . between name and
csv, so using paste(name, "csv", sep = ".") woul
What package is "read.dbf" from? What error message/behavior did you see?
Should it be:
path<-setwd(paste0("inpath/",folder)) ## did you forget the "/" ?
Bert Gunter
"The trouble with having an open mind is that people keep coming along
and sticking things into it."
-- Opus (aka Berkeley Breathe
Hi Everyone,
I am trying to loop through the folders in the major working directory.
Read the dbf file into the data frame then save the data frame as CSV file
in another folder.
For this, I have written this code, But not able to figure out where it is
going wrong. Any ideas will be of great suppo
You reused 'i' in the inner 'for' loop. This looks like it give the
correct answer:
> n<-c(10,8,7,5)
> n_goal<-c(8,9,9,4)
> w<-c(0.1,0.1,0.1,0.1)
> matrix<-mat.or.vec(6,4)
> FI<-function(n_t) {
+
(((n_goal[1]-n[1]+W[1]-f[1]+n_t[1])^2)+((n_goal[2]-n[2]+W[2]-f[2]+n_t[2]-n_t[1])^2)+
+
((n_goal[3]-n
Hi all,
I'm sorry, maybe the solution in my problem is easy, but i am still new to R,
and any help
here is appreciated!
I want to create a data frame, or a matrix in which the output of each loop
will be stored.
Here is the program
> n<-c(10,8,7,5)
> n_goal<-c(8,9,9,4)
> w<-c(0.1,0.1,0.1,0.1)
Hi,
Thank Michael for your help.
Komine
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You never create a variable called "Mat2002273" or "Mat2002361" so you
can't ask R to loop over all the values between them.
If I were you, I'd code something like this:
lf <- list.files()
# PUT IN SOME CODE TO REMOVE FILES YOU DON'T WANT TO USE
pv <- vector("numeric", length(lf))
for(i in lf)
Hi,
I try to build a loop difficultly.
I have in a folder called Matrices several files (.csv) called Mat2002273,
Mat2002274 to Mat2002361.
I want to calculate for each file the mean of the column called Pixelvalues.
I try this code but as result, I have this message: Mat2002273 not found
>
thank you so much!
this solved my problem
unbekannt wrote:
>
>
> Dear all,
>
> I am a newbie to R and practising at the moment.
>
> Here is my problem:
>
> I have a programme with 2 loops involved.
> The inner loop get me matrices as output and safes all values for me.
>
> Now once
Dear unbekannt;
The construction that would append a number to a numeric vector would
be:
vec <- c(vec , number)
You can create an empty vector with vec <- c() or vec <- NULL
--
David Winsemius
On Apr 12, 2009, at 2:10 PM, unbekannt wrote:
Dear all,
I am a newbie to R and practising a
Dear all,
I am a newbie to R and practising at the moment.
Here is my problem:
I have a programme with 2 loops involved.
The inner loop get me matrices as output and safes all values for me.
Now once I wrote a 2nd loop around the other loop in order to
repeat the inner loop a couple of
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