[R] MASS mve_fits mycov.rob

[Charlie Brown]

I missed that, thank you.
This is from a function someone else wrote, and they modified
cov.rob(); I will look through what they have done.
Thank you.

On Mon, Sep 16, 2013 at 2:05 PM, arun <smartpink111 at yahoo.com> wrote:
> 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.
>
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