The answer:
https://statisticsglobe.com/change-classes-data-frame-columns-automatically-r
On Sun, Jul 14, 2024 at 3:16 AM DynV Montrealer wrote:
> A small number of columns in the data I need to work with are strings, the
> rest numbers. I'm using read_excel() from the readxl pac
A small number of columns in the data I need to work with are strings, the
rest numbers. I'm using read_excel() from the readxl package to get the
data ; right after it, the string columns are of type chr and the rest num.
I'm tasked with finding out which columns are integers. From an advice, I
t
I need to do a non-English report including the red line from plot(aov,
which=1), which I don't know how to reproduce. I'm thinking that if I
replace the labels that it would be good (so no English remains). What I
have so far is almost what I need, the only thing that needs to change is
what's rig
I'm tasked to read a table from an excel file and it doesn't mention which
method to use. I went back some lessons ago and the 5 years old lesson
mentioned to pick a package using the highest score the way of the attached
(screenshot). Since there's no requirement of a method to read Excel files,
I
>
> > ifelse(mat_bools, mat_letters, "")
> [,1] [,2]
> [1,] "" "B"
> [2,] "C" ""
> > ifelse(mat_bools, mat_letters, NA)
> [,1] [,2]
> [1,] NA "B"
> [2,] "C" NA
>
> Marc
>
>
>
&g
Is there a way to get a copy of a matrix only for TRUE entries of a
matching size boolean matrix? For *example*:
> mat_letters <- matrix(data=c('A', 'B', 'C', 'D'), ncol=2, byrow=TRUE)
> mat_letters
[,1] [,2]
[1,] "A" "B"
[2,] "C" "D"
> mat_bools <- matrix(data=c(FALSE, TRUE, TRUE, FALSE), n
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