[R] Problem with 'lars' package

2010-11-05 Thread Vladimir Subbotin
Hello,

I have problems with 'lars' package. I found the previous post of the person
who had the same issue, but the suggested solution in that post did not help
me.

I created the matrices:

ResponseMatrix - data.frame (GAOdecision=GAOdecision)
PredictorsMatrix - data.frame (WeaponvsNon = WeaponvsNon, ProductvsService
= ProductvsService, KDuration = KDuration, BusinessSize = BusinessSize,
Bidders = Bidders, Staging = Staging, Criteria = Criteria, KPricing =
KPricing, Political = Political)

and then
output - lars(PredictorsMatrix, ResponseMatrix)
*Error in one %*% x : requires numeric/complex matrix/vector arguments*
*
*
I did not create any variables x in my code. I also used rm(x) in the
beginning of my code, but it did not help.

I would really appreciate any help.

Thanks,
Vlad

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Re: [R] Problem with 'lars' package

2010-11-05 Thread Steve Lianoglou
Hi,

On Fri, Nov 5, 2010 at 4:14 PM, Vladimir Subbotin
subbotinvladim...@gmail.com wrote:
 Hello,

 I have problems with 'lars' package. I found the previous post of the person
 who had the same issue, but the suggested solution in that post did not help
 me.

 I created the matrices:

 ResponseMatrix - data.frame (GAOdecision=GAOdecision)
 PredictorsMatrix - data.frame (WeaponvsNon = WeaponvsNon, ProductvsService
 = ProductvsService, KDuration = KDuration, BusinessSize = BusinessSize,
 Bidders = Bidders, Staging = Staging, Criteria = Criteria, KPricing =
 KPricing, Political = Political)

 and then
 output - lars(PredictorsMatrix, ResponseMatrix)
 *Error in one %*% x : requires numeric/complex matrix/vector arguments*

This is likely talking about variables in the function -- for
instance, not that the first parameter in the function is named 'x'.

Also, your ResponeMatrix and PredictorsMatrix should be of type
*matrix* not data.frame ... you can try to convert it with
as.matrix(ResponseMatrix). You should then ensure that all values in
your response and predictors matrix are numeric, ie:
all(is.numeric(ResponseMatrix)), etc ... also check for odd values
like NA, NaN or Inf.

Lastly, consider using the glmnet package instead of lars. It provides
a superset of the functionality from lars, and its core is written
in fortran, so will likely be much faster and deal with larger
problems. It's also more actively maintained (note a new version of
glmnet was just released this week).

-steve

-- 
Steve Lianoglou
Graduate Student: Computational Systems Biology
 | Memorial Sloan-Kettering Cancer Center
 | Weill Medical College of Cornell University
Contact Info: http://cbio.mskcc.org/~lianos/contact

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Re: [R] Problem with 'lars' package

2010-04-27 Thread Uwe Ligges



On 27.04.2010 07:33, Tal Galili wrote:

The CRAN website is down, and will remain so for the next few hours, see
link for alternative images:
http://www.r-bloggers.com/r-project-websites-down/



... which explains one warning, see bewlow.




Contact
Details:---
Contact me: tal.gal...@gmail.com |  972-52-7275845
Read me: www.talgalili.com (Hebrew) | www.biostatistics.co.il (Hebrew) |
www.r-statistics.com (English)
--




On Tue, Apr 27, 2010 at 1:58 AM,khasan...@berkeley.edu  wrote:


Hi,
I'm having trouble running 'lars'. When I install it I get the following
warning:


install.packages('lars')

Warning in install.packages(lars) :
  argument 'lib' is missing: using
'C:\Users\Anna\Documents/R/win-library/2.10'


Well, you have not specified a library, hence the first one from 
.libPaths() is used. You can probably ignore it if this is fine for you.




--- Please select a CRAN mirror for use in this session ---
trying URL
'http://cran.cnr.Berkeley.edu/bin/windows/contrib/2.10/lars_0.9-7.zip'
Content type 'application/zip' length 211898 bytes (206 Kb)
opened URL
downloaded 206 Kb

package 'lars' successfully unpacked and MD5 sums checked

The downloaded packages are in
C:\Users\Anna\AppData\Local\Temp\RtmpmRYoLn\downloaded_packages
Warning message:
In open.connection(con, r) :
  unable to connect to 'cran.r-project.org' on port 80.



The CRAN master is unexpectedly unavailable as explained by Tal Galili.
This can be ignored, R tried to update the list of mirrors for you (from 
the CRAN master).






When I actually try to run it, it gives me the following message:

Error: argument Gram is missing, with no default



You misspecified a function call,I guess. But hard to say what you did 
without seeing the actual code.


Uwe Ligges





What is the problem?
Thank you,
Anna

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[R] Problem with 'lars' package

2010-04-26 Thread khasanova
Hi,
I'm having trouble running 'lars'. When I install it I get the following
warning:

install.packages('lars')
Warning in install.packages(lars) :
  argument 'lib' is missing: using
'C:\Users\Anna\Documents/R/win-library/2.10'
--- Please select a CRAN mirror for use in this session ---
trying URL
'http://cran.cnr.Berkeley.edu/bin/windows/contrib/2.10/lars_0.9-7.zip'
Content type 'application/zip' length 211898 bytes (206 Kb)
opened URL
downloaded 206 Kb

package 'lars' successfully unpacked and MD5 sums checked

The downloaded packages are in
C:\Users\Anna\AppData\Local\Temp\RtmpmRYoLn\downloaded_packages
Warning message:
In open.connection(con, r) :
  unable to connect to 'cran.r-project.org' on port 80.


When I actually try to run it, it gives me the following message:

Error: argument Gram is missing, with no default

What is the problem?
Thank you,
Anna

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Re: [R] Problem with 'lars' package

2010-04-26 Thread Tal Galili
The CRAN website is down, and will remain so for the next few hours, see
link for alternative images:
http://www.r-bloggers.com/r-project-websites-down/



Contact
Details:---
Contact me: tal.gal...@gmail.com |  972-52-7275845
Read me: www.talgalili.com (Hebrew) | www.biostatistics.co.il (Hebrew) |
www.r-statistics.com (English)
--




On Tue, Apr 27, 2010 at 1:58 AM, khasan...@berkeley.edu wrote:

 Hi,
 I'm having trouble running 'lars'. When I install it I get the following
 warning:

 install.packages('lars')
 Warning in install.packages(lars) :
  argument 'lib' is missing: using
 'C:\Users\Anna\Documents/R/win-library/2.10'
 --- Please select a CRAN mirror for use in this session ---
 trying URL
 'http://cran.cnr.Berkeley.edu/bin/windows/contrib/2.10/lars_0.9-7.zip'
 Content type 'application/zip' length 211898 bytes (206 Kb)
 opened URL
 downloaded 206 Kb

 package 'lars' successfully unpacked and MD5 sums checked

 The downloaded packages are in
C:\Users\Anna\AppData\Local\Temp\RtmpmRYoLn\downloaded_packages
 Warning message:
 In open.connection(con, r) :
  unable to connect to 'cran.r-project.org' on port 80.


 When I actually try to run it, it gives me the following message:

 Error: argument Gram is missing, with no default

 What is the problem?
 Thank you,
 Anna

 __
 R-help@r-project.org mailing list
 https://stat.ethz.ch/mailman/listinfo/r-help
 PLEASE do read the posting guide
 http://www.R-project.org/posting-guide.html
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