[R] Regarding R doubt

[Richard O'Keefe]

You did not say what your doubt about R was.
PL2.rasch has some class.
> class(PL2.rasch)
[1] 'Grofnigtz'   # or whatever
The summary function is really just a dispatcher.
> summary.Grofnigtz
... a listing comes out here ...

Or you could look in the source code of whatever package you are usin.


On Thu, 20 Jun 2019 at 00:25, shraak using outlook.com <shraak using outlook.com> wrote:

> 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:
>
> Coefficients:
>                  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 ?
>
> Thanks,
> Shreepad
>
>
>
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>
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