[R] Regarding R doubt on rasch model
ru|pb@rr@d@@ @end|ng |rom @@po@pt
Wed Jun 19 15:46:36 CEST 2019
There are many packages that implement rasch models but I could only
find 2 with summary methods,
package pairwise and
See  and .
To see the source code at an R prompt
print the function code with
where <the_object_class> is the output of
R is open source and the code is available to download from CRAN.
Hope this helps,
Às 07:48 de 19/06/19, shreepad khandve escreveu:
> Hello Team,
> I hope you are doing well.
> I have one doubt about backend functioning of R command.
> Currently I'm working on IRT analysis in python but this function is
> implemented in R and in R they have direct rasch model library but no
> such library in the Python.
> So i wanted to know that is there any way to find the math or formula
> behind the specific command of R language.
> for eg, summary(PL2.rasch)
> after this command you will directly get difficulty and discrimination
> values like mentioned below:
> value std.err z.vals
> Dffclt.V1 3.1135 9.8208 0.3170
> Dffclt.V2 -0.5157 0.8941 -0.5768
> Dffclt.V3 -1.3585 3.2062 -0.4237
> Dffclt.V4 -1.0032 8649.3103 -0.0001
> Dffclt.V5 0.0400 1350.8452 0.0000
> So is there any way to find out the math behind this summary command ?
> R-help using r-project.org mailing list -- To UNSUBSCRIBE and more, see
> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
More information about the R-help