Hi Rui,
I succeded to convert a coordinate from decimal to DMS formats but not the
inverse!!!
dd<- -52.55684
c<-dd2dms(dd, NS = FALSE)
c
[1] 52d33'24.624"W
>
The use of char2dms() function is not so easy because I cannot yet read() the
text file with the DMS coordinates (one col. with the
Hello,
many thanks for your replies. The code I've posted was simplified and
depicted my problem basically. Of course my intention was not to add
0-columns to a matrix, the problem resulted from my approach to add only
eigenvectors to a matrix if the corresponding eigenvalue is element of
Lots of people here are touchy about homework and I can understand that.
But sharing code and saying where you are stuck is a plus for me as compared to
asking someone to do it all.
So, without commenting on whether your shown code is right, assuming youhave a
data.frame object sorted as
Sounds like homework. We try not to do homework here (if it is). See
the posting guide linked below for details.
Bert Gunter
"The trouble with having an open mind is that people keep coming along
and sticking things into it."
-- Opus (aka Berkeley Breathed in his "Bloom County" comic strip )
On
Hi all, I have three columns. Resistance, Time and Frequency, and I need to
find correlations between Resistance and Time by each of 100 Frequencies.
I have set Frequencies to be a factor. Time is in the format "%m/%d/%Y
%H:%M:%S", but correlations dont seem to like Time data.
I can run this code
Gracias Carlos, he descubierto que el paquete DALEX, que me recomendaste
para obtener los PDPs con XgBoost, te da también la importancia basada en
la permutación. Por cierto, que DALEX te represente los PDPs para
distintas categorías, tanto de la variable objetivo como de alguno de los
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