Hi,
`stats::chisq.test` checks that x and y each have at least 2 levels AFTER
filtering on complete cases.
It makes sense but the error message is misleading : “'x' and 'y' must have
at least 2 levels”
Here’s how to reproduce the issue :
x <- structure(c(1L, 1L, 1L, 2L, 1L, 2L), .Label = c(
Dear all,
`head()` returns a problematic output when a character is fed to its `n`
parameter.
doubles and logicals are converted to integer as if `as.integer` was used,
which I think is intuitive enough :
```
head(1:10, 4.1) # [1] 1 2 3 4
head(1:10, 4.9) # [1] 1 2 3 4
head(1:10, TRUE) # 1
hea
Dear all,
The help for `?install.packages` decribes, in the `pkg` argument
description :
> If this is missing, a listbox of available packages is presented where
possible in an interactive R session.
In fact running it with a missing argument triggers an error :
install.packages()
> Error in in
écrit :
> Are you running that command in RStudio? And do you get the documented
> results when you run utils::install.packages() rather than just
> install.packages()
>
> If yes, then the function is likely working as advertised and you've
> mixed up the R and RStudio version
Indeed it's a RStudio issue as diagnosed by Hugh, and is still an issue
with the latest version.
Le lun. 29 juil. 2019 à 15:02, Duncan Murdoch a
écrit :
> On 29/07/2019 7:39 a.m., Ant F wrote:
> > Dear all,
> >
> > The help for `?install.packages` decribes, in the `pkg
Dear all,
There was some discussion lately on twitter (
https://twitter.com/geospacedman/status/1164208293377691648 ) about the
status of the colon equal operator. I'm sure it has been discussed in the
past but I couldn't find anything, I'll start by clarifying all i can by
myself to have strong r
Dear all,
`?Syntax` documents that `?` has the lowest precedence, right under `=`.
Indeed it reads:
*The following unary and binary operators are defined. They are listed in
precedence groups, from highest to lowest. *
and ends the list with
*<- <<-* *assignment (right to left)*
*=* *assignme
Dear all,
`rbind()` returns a zero row data frame when binding zero column data
frames, see example below:
``` r
# a data frame with 1 row and 0 column
x <- data.frame(row.names=1)
x
#> data frame with 0 columns and 1 row
rbind(x,x)
#> data frame with 0 columns and 0 rows
```
I would have expect
Dear R-devel,
The most popular piping operator sits in the package `magrittr` and is used
by a huge amount of users, and imported /reexported by more and more
packages too.
Many workflows don't even make much sense without pipes nowadays, so the
examples in the doc will use pipes, as do the READM
or
> some reason we chickened out and didn't spend time on it in the dot pipe
> paper ( https://journal.r-project.org/archive/2018/RJ-2018-042/index.html
> ).
>
> For documentation Bizarro pipe has the advantage that one can work out how
> it works from the application itself, w
z.ch/R-manual/R-devel/library/base/html/funprog.html
> [2] https://stat.ethz.ch/R-manual/R-devel/library/base/html/Recall.html
> [3] https://stackoverflow.com/a/52465956/8245406
>
> Hope this helps,
>
> Rui Barradas
>
> Às 16:48 de 05/10/19, Ant F escreveu:
> > Hi
Yes but this exageration precisely misses the point.
Concerning your examples:
* I love fread but I think it makes a lot of subjective choices that are
best associated with a package. I think it
changed a lot with time and can still change, and we have great developers
willing to maintain it and
x <- 5
> >
> >
> > Though thats a much more minor transformation.
> >
> > All of that said, I believe Jim Hester (cc'ed) suggested something along
> > these lines at the RSummit a couple of years ago, and thus far R-core has
> > not shown much appetite fo
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