You have failed to tell us that you are using a package, presumably the
sets package.
What I believe you don't understand is that the underlying data structures
that represent sets are not what you think they are, but behave as you
expect through the package API. So unless the API gets you the
Hello all,
I have a set B and a dataframe df. I want to name the columns of the
dataframe after the elements of the set B.
For example, for set B with elements {{"P1"}, {"P2"}, {"P3", "P4"}} I want
to create a new dataframe with 3 columns named {"P1"} and {"P2"} and
{"P3","P4"}.
I tried
In that case, I can't work out why the first model fails but not the
second. I would start looking at "Data" to see what it contains. if:
object2 <- polr(Inc ~ Training ,Data,Hess = T,method = "logistic" )
works, the problem may be with the "Adopt" variable.
Jim
On Tue, Mar 20, 2018 at 10:55
Hi Willy,
The error message may be due to passing an inappropriate environment.
I don't have the "erer" package, but if that function has a default
for the environment argument, perhaps passing just the "predvars" and
"data" arguments will work.
Jim
On Tue, Mar 20, 2018 at 8:24 AM, Willy
You are more likely to get a useful answer if you read **and follow** the
posting guide linked below. In particular, show us the code that elicited
the error. A small reproducible example would be even better, though may
not be needed.
Cheers,
Bert
Bert Gunter
"The trouble with having an open
Dear Oscar,
and any other R-project person,
Can you please help me to figure out the meaning of the following error
message in red ?
Error in eval(predvars, data, env) :
numeric 'envir' arg not of length one
I computed ordered logit models using 'polr' in R (I just followed the
guidance a
The r-sig-geo list,
https://stat.ethz.ch/mailman/listinfo/r-sig-geo
is often a better place to post such geographically related queries.
Cheers,
Bert
Bert Gunter
"The trouble with having an open mind is that people keep coming along and
sticking things into it."
-- Opus (aka Berkeley
I am having trouble getting data labels to display over the provinces in a GADM
map of Canada.
Specifically, I need the variable "Number" from the data set "by_province",
grouped by "region", to appear on the corresponding regions of the map.
The data set "by_province" looks like this:
long
For loops are not usually the primary cause of slow processing in R... poor
memory handling is.
But the closest you seem to come to asking a question in your email seems to be
about Rcpp, which is off topic on this mailing list. Try reading all of the
Rcpp vignettes, and then if needed ask on
> I'd like to find the value of r-square change at each step of a regression
> model.
>
> I know that I can use anova () to compare to models, but, if I want to find
> out
> that how much exactly r-square has change from one model to the next, how
> can I find that?
See ?summary.lm
For a
First, it _looks_ like you're not constructing your starting sets properly.
The sets package manual says that the set constructor is set()
There's no apparent overload for {}
Assuming your actual commands are
x<- set("P1", "P2", "P3", "P4")
y<-set()
There's a difference between z<-set(x,y).
Dear Raja
the technical problem is that the function crrstep does not communicate
the selected variables in a proper way. the function pec::selectFGR uses
rownames(crrstep.fit$coefficients). the other problem is that I don't
like and never use backward elemination -- so, I am not motivated to fix
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