[R] Dataframes in PLS package

[R. Michael Weylandt]

No. Do not do that. While it looks nice at first, it quickly becomes
the source of innumerable errors.

Michael

On Sun, Mar 4, 2012 at 1:56 AM, Kazuo Ishii <freeparis2 at gmail.com> wrote:
> 2012/3/4, westland <westland at uic.edu>:
>> I am still/again having trouble getting PLSR to recognize the input data
>> frames.   Here is what I have done:
>>
>>  I read in an 10000 x 8 table of data to 'pls'
>>
>> assign the first four columns to  matrix 'dep' and the second four to matrix
>> 'ind' with the following commands:
>>
>> dep <- pls[,1:4]
>> ind <- pls[,5:8]
>>
>> I create the data.frame 'eqn' :
>>
>> eqn <- data.frame(depy = I(as.matrix(dep)), indx = I(as.matrix(ind)))
>
> please, type as below, after you make egn:
>
> attach(egn)
>
>
> I think it work well.
>
>>
>> And run the PLSR package
>>
>> apls <- plsr(depy ~ indx, data=eqn)
>>
>> I seem to be getting either one of two error messages:
>>
>> [12] ERROR:
>>   invalid type (list) for variable 'dep'
>> [13] ERROR:
>>   object of type 'closure' is not subsettable
>>
>> I'm sure now that this is a problem in my creation of data.frames, but can't
>> seem to find anything that describes the problem
>>
>>
>> -----
>> J. Christopher Westland
>> Professor, Information & Decision Sciences, University of Illinois - Chicago
>> 601 S. Morgan Street (UH2400) Chicago, IL    60607-7124
>> Telephone       +1.312.860.0587
>> Google Voice  +1.209.757.8849
>> westland at uic.edu
>> http://uic.edu/~westland
>> --
>> View this message in context:
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>> Sent from the R help mailing list archive at Nabble.com.
>>
>> ______________________________________________
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>> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
>> and provide commented, minimal, self-contained, reproducible code.
>>
>
>
> --
> Kazuo Ishii, Ph.D., Professor of Genome Science,
> Tokyo University of Agriculture and Technology
> 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509, JAPAN
> Email: kishii at cc.tuat.ac.jp
>
> ______________________________________________
> R-help at r-project.org mailing list
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> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.