Re: [R] GLM Model Summary

[Marc Schwartz via R-help]

> On Oct 16, 2018, at 12:33 PM, Neslin, Scott A. 
>  wrote:
> 
> R-Help:
> 
> We are working with your GLM R package.  The Summary(Model) now gets printed 
> by the program as one object and we want to put the coefficient columns into 
> Excel.  We took an initial stab at this by counting the number of characters 
> occupied by each column.  But we have now learned that the number of 
> characters in a column depends on the length of the variable names, so is not 
> a constant number (e.g., 54 characters to a line).
> 
> We therefore ask, is it possible for us to get the Summary(Model) column by 
> column, i.e., a separate object for each column?  That way we could assemble 
> an Excel table easily rather than having to count the number of characters.
> 
> Is this possible for us to do by ourselves?  Or could you modify the package 
> in some way?
> 
> We appreciate your attention.  Thank you!
> 
> Scott Neslin
> Prasad Vana
> 
> Dartmouth College


Hi,

Presuming that you are talking about the glm() function, as there is no GLM 
package as far as I can see, R model objects have a structure that can be 
viewed using the str() function. The help for this function can be viewed using:

   ?str

You can then use:

  str(summary(YourModelObject))

That will give you some insights into the model object components and that same 
str() function is valuable for investigating other objects as well.

That being said, R's model objects typically have 'extractor' functions to make 
it easy to obtain commonly used components of the model object, which can be 
complicated.

The R manual "An Introduction to R", has a section on some of these:


https://cran.r-project.org/doc/manuals/r-release/R-intro.html#Generic-functions-for-extracting-model-information
 


Thus, for example, using:

  coef(summary(YourModelObject))

will return the matrix of coefficients and related parameters from the summary 
model object.

Once you have that matrix object, you can write it out to a CSV file using 
?write.csv, where the CSV file can then be opened with or imported into Excel.

So the steps might be along the lines of:

  my.coef <- coef(summary(YourModelObject))

  write.csv(my.coef, file = "MyCoefficients.csv")


The R Data Import/Export manual:

  https://cran.r-project.org/doc/manuals/r-release/R-data.html 


has some insights into pathways for getting data to and from R, including some 
packages that can directly write Excel files. You may wish to review that 
manual as well.

Regards,

Marc Schwartz



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Re: [R] GLM Model Summary

[Amit Mittal]

You can just use

'slotNames(modelname)
This will return sub objects for which names can be extracted

Eg

slotNames(modelname)
[1] "mfit" "model"
names(modelname@mfit)
names(modelname@model)
Will return all objects within the model including coed car R cover vcov as
applicable and you can store per choice

However within the column they will still be text

BR

On Tue 16 Oct, 2018, 10:23 PM Duncan Murdoch, 
wrote:

> On 16/10/2018 12:33 PM, Neslin, Scott A. wrote:
> > R-Help:
> >
> > We are working with your GLM R package.  The Summary(Model) now gets
> printed by the program as one object and we want to put the coefficient
> columns into Excel.  We took an initial stab at this by counting the number
> of characters occupied by each column.  But we have now learned that the
> number of characters in a column depends on the length of the variable
> names, so is not a constant number (e.g., 54 characters to a line).
>
> There is no GLM R package as far as I know.  There's a glm() function in
> the stats package.  Is that what you meant?
>
> What would probably be best is if you showed us a simple example of what
> you are doing, and then referred to the results from that when saying
> what you want to extract.
>
> Duncan Murdoch
>
> >
> > We therefore ask, is it possible for us to get the Summary(Model) column
> by column, i.e., a separate object for each column?  That way we could
> assemble an Excel table easily rather than having to count the number of
> characters.
> >
> > Is this possible for us to do by ourselves?  Or could you modify the
> package in some way?
> >
> > We appreciate your attention.  Thank you!
> >
> > Scott Neslin
> > Prasad Vana
> >
> > Dartmouth College
> >
> >   [[alternative HTML version deleted]]
> >
> > __
> > R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
> > https://stat.ethz.ch/mailman/listinfo/r-help
> > PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html
> > and provide commented, minimal, self-contained, reproducible code.
> >
>
> __
> R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
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>
-- 

__

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Re: [R] GLM Model Summary

[Peter Langfelder]

The coefficients are best obtained as summary(Model)$coefficients.
This is a matrix can than be saved as a csv file and opened in excel
or other spreadsheet software.

HTH,

Peter
On Tue, Oct 16, 2018 at 9:44 AM Neslin, Scott A.
 wrote:
>
> R-Help:
>
> We are working with your GLM R package.  The Summary(Model) now gets printed 
> by the program as one object and we want to put the coefficient columns into 
> Excel.  We took an initial stab at this by counting the number of characters 
> occupied by each column.  But we have now learned that the number of 
> characters in a column depends on the length of the variable names, so is not 
> a constant number (e.g., 54 characters to a line).
>
> We therefore ask, is it possible for us to get the Summary(Model) column by 
> column, i.e., a separate object for each column?  That way we could assemble 
> an Excel table easily rather than having to count the number of characters.
>
> Is this possible for us to do by ourselves?  Or could you modify the package 
> in some way?
>
> We appreciate your attention.  Thank you!
>
> Scott Neslin
> Prasad Vana
>
> Dartmouth College
>
> [[alternative HTML version deleted]]
>
> __
> R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.

__
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Re: [R] GLM Model Summary

[Duncan Murdoch]

On 16/10/2018 12:33 PM, Neslin, Scott A. wrote:

R-Help:

We are working with your GLM R package.  The Summary(Model) now gets printed by 
the program as one object and we want to put the coefficient columns into 
Excel.  We took an initial stab at this by counting the number of characters 
occupied by each column.  But we have now learned that the number of characters 
in a column depends on the length of the variable names, so is not a constant 
number (e.g., 54 characters to a line).


There is no GLM R package as far as I know.  There's a glm() function in 
the stats package.  Is that what you meant?


What would probably be best is if you showed us a simple example of what 
you are doing, and then referred to the results from that when saying 
what you want to extract.


Duncan Murdoch



We therefore ask, is it possible for us to get the Summary(Model) column by 
column, i.e., a separate object for each column?  That way we could assemble an 
Excel table easily rather than having to count the number of characters.

Is this possible for us to do by ourselves?  Or could you modify the package in 
some way?

We appreciate your attention.  Thank you!

Scott Neslin
Prasad Vana

Dartmouth College

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and provide commented, minimal, self-contained, reproducible code.



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