R help - Nov 2004 - n-th power of a matrix

Hello all,
To calculate the power of a matrix, I used the command "mtx.exp(X,
n)", but
there is an error saying "Error: couldn't find function
"mtx.exp"".  How can
I deal with this problem?
Jing

Load the library first:
> library(Malmig)
> ?mtx.exp
HTH, Andy

jing tang wrote:
> Hello all,
> To calculate the power of a matrix, I used the command "mtx.exp(X,
n)",
> but there is an error saying "Error: couldn't find function
"mtx.exp"".
> How can I deal with this problem?
> Jing

You have not told us in which package mtx.exp() is, and looking for it 
shows us that it is in package "Malmig".

  library(Malmig)
  mtx.exp(X, n)

works for me.


Folks, PLEASE think about the packages you are using!
This is the (n+1)-th e-mail within 7 days not specifying the package you 
are talking about.

Uwe Ligges

>>>>> "jing" == jing tang <tang_chalmers at
hotmail.com>
>>>>>     on Tue, 02 Nov 2004 15:11:32 +0100 writes:
    jing> Hello all,

    jing> To calculate the power of a matrix, I used the command
    jing> "mtx.exp(X, n)", but there is an error saying
"Error:
    jing> couldn't find function "mtx.exp"".  How can I
deal
    jing> with this problem?  Jing

## First load the "Malmig" package in which the  mtx.exp()
## function is defined:

library(Malmig)

## If that gives an error as well, you also need.
install.packages("Malmig")

Martin Maechler, ETH Zurich