Hi Ista
This works brilliantly and is so elegant!
Yes, i googled quite a while but did not come across do.call till now.
Thanks again
Bernard
On 10 Apr 2015 22:46, Ista Zahn istaz...@gmail.com wrote:
Hi Bernard,
Did you try searching for an answer? This question (minus the xts part
which I don't think will matter) has been asked and answered many times,
with
do.call(rbind, foo)
being a common answer.
Best,
Ista
On Apr 10, 2015 5:35 PM, B Dittmann bd10st...@googlemail.com wrote:
Dear R users,
hope you can point me in the right direction. I am stuck with the
following
problem.
My function f1 reads csv files, manipulates them into the right xts
format and returns the output at the end. This works perfectly fine. Now,
I
need to run f1 over a long list of various csv files, all of the same
format, but different dates (or time stamps) which is guaranteed by
design.
All these individual results per each file I hope to combine into one xts
or zoo object.
I tried lapply as follows:
# all csv files start with z1:
file.names - list.files(pattern = z1*, full.names = T, recursive =
FALSE)
# my function:
f1 - function(x, param){
# x: the csv file
# param: some parameter for calculation
# spits results out
return(results)
}
res - lapply(file.names, function(x){f1(x, param)})
I wrote the output to res and by subsetting res[1], res[2], ... I can
retrieve the results of each individual csv file on which I applied my
function f1.
How could I append or merge all individual results res[i] for my i csv
files into one xts or zoo object?
Many thanks in advance,
Bernard
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