[R] MASS mve_fits mycov.rob

[arun]

Hi,
library(MASS)
Couldn't find the function ?mycov.rob()
 mycov.rob(mtcars[,1:3],method="mcd")
#Error: could not find function "mycov.rob"

??mycov.rob
No vignettes or demos or help files found with alias or concept or
title matching ‘mycov.rob’ using regular expression matching.


Though,
 cov.rob(mtcars[,1:3],method="mcd")
$center
       mpg        cyl       disp 
 18.528571   6.380952 225.295238 

$cov
             mpg        cyl      disp
mpg    10.676143  -4.901429 -248.3544
cyl    -4.901429   2.647619  127.3619
disp -248.354357 127.361905 7469.5075

$msg
[1] "106 singular samples of size 4 out of 2000"

$crit
[1] 7.701039

$best
 [1]  1  2  3  6  7 10 11 12 13 14 21 22 23 24 29 30 31 32

$n.obs
[1] 32
 sessionInfo()
R version 3.0.1 (2013-05-16)
Platform: x86_64-unknown-linux-gnu (64-bit)

locale:
 [1] LC_CTYPE=en_CA.UTF-8       LC_NUMERIC=C              
 [3] LC_TIME=en_CA.UTF-8        LC_COLLATE=en_CA.UTF-8    
 [5] LC_MONETARY=en_CA.UTF-8    LC_MESSAGES=en_CA.UTF-8   
 [7] LC_PAPER=C                 LC_NAME=C                 
 [9] LC_ADDRESS=C               LC_TELEPHONE=C            
[11] LC_MEASUREMENT=en_CA.UTF-8 LC_IDENTIFICATION=C       

attached base packages:
[1] grid      stats     graphics  grDevices utils     datasets  methods  
[8] base     

other attached packages:
[1] zoo_1.7-10      rlme_0.2        quantreg_5.02   SparseM_1.03   
[5] MASS_7.3-28     lattice_0.20-15 stringr_0.6.2   reshape2_1.2.2 

loaded via a namespace (and not attached):
[1] magic_1.5-4   Matrix_1.0-12 mgcv_1.7-24   nlme_3.1-110  plyr_1.8     
[6] tcltk_3.0.1   tools_3.0.1  

A.K.






----- Original Message -----
From: Charlie Brown <charliethebrown77 at gmail.com>
To: "r-help at r-project.org" <r-help at r-project.org>
Cc: 
Sent: Monday, September 16, 2013 2:05 PM
Subject: [R] MASS mve_fits mycov.rob

Hello,
In R 3.0.1, I get the following warning that I do not get in R 2.15.3:

data(mtcars)
mycov.rob(mtcars[,1:3], method="mcd")
Error in .C("mve_fitlots", as.double(x), as.integer(n), as.integer(p),  :
  "mve_fitlots" not available for .C() for package "MASS"

It seems like there was a change in MASS?  Can someone please help me
determine how to to use mycov.rob(x, method="mcd") in R 3.0.1 (I am
guessing that this includes anything that uses mve_fitlots...

Thanks.

______________________________________________
R-help at 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
and provide commented, minimal, self-contained, reproducible code.