Displaying 9 results from an estimated 9 matches for "jlaznarte".
Did you mean:
aznarte
2007 Apr 06
4
Computing the rank of a matrix.
...there not an R
equivalent to Matlab's 'rank()'?
I've been browsing for a time now and I can't find anything, so any
help will be greatly appreciated. Best regards!
-- --
Jose Luis Aznarte M. http://decsai.ugr.es/~jlaznarte
Department of Computer Science and Artificial Intelligence
Universidad de Granada Tel. +34 - 958 - 24 04 67
GRANADA (Spain) Fax: +34 - 958 - 24 00 79
2008 Sep 30
1
ordering problem
...in A, i.e., not considering the case
where there are ties amongst this first dimension. Does anyone have a
clue about properly applying the lexicographical ordering? Thanks in
advance!
-- --
Jose Luis Aznarte M. http://decsai.ugr.es/~jlaznarte
Department of Computer Science and Artificial Intelligence
Universidad de Granada Tel. +34 - 958 - 24 04 67
GRANADA (Spain) Fax: +34 - 958 - 24 00 79
2007 Sep 11
5
Percentiles in R
...X,p) calculates a value that is greater than p percent of
the values in X. The values of p must lie in the interval [0 100]. For
instance, if p = 50 then Y is the median of X
Thanks!!
--
-- --
Jose Luis Aznarte M. http://decsai.ugr.es/~jlaznarte
Department of Computer Science and Artificial Intelligence
Universidad de Granada Tel. +34 - 958 - 24 04 67
GRANADA (Spain) Fax: +34 - 958 - 24 00 79
2008 Aug 28
3
Plots spanning columns
...---------- -------------
| | | |
| ACF | | PACF |
| | | |
------------ -------------
Does anyone know if that is possible at all? Cheers!
--
-- --
Jose Luis Aznarte M. http://decsai.ugr.es/~jlaznarte
Department of Computer Science and Artificial Intelligence
Universidad de Granada Tel. +34 - 958 - 24 04 67
GRANADA (Spain) Fax: +34 - 958 - 24 00 79
2008 Aug 15
2
Combination with repetition
...think that is not very elegant and, overall, I don't know
how to do that. If combn() accepted repetitions, it'd be solved also.
Any help will be greatly appreciated.
Bests,
-- --
Jose Luis Aznarte M. http://decsai.ugr.es/~jlaznarte
Department of Computer Science and Artificial Intelligence
Universidad de Granada Tel. +34 - 958 - 24 04 67
GRANADA (Spain) Fax: +34 - 958 - 24 00 79
2007 Mar 26
5
Developer work cycle
...his the proper (but quite awkward) way to proceed or there is an
alternative to skip steps 2 to 4? I'm using emacs with ESS under linux.
Thank you in advance for your time! Best regards,
-- --
Jose Luis Aznarte M. http://decsai.ugr.es/~jlaznarte
Department of Computer Science and Artificial Intelligence
Universidad de Granada Tel. +34 - 958 - 24 04 67
GRANADA (Spain) Fax: +34 - 958 - 24 00 79
2007 Sep 27
1
A matrix multiplication
...A[,1] * B and
the second three the result of A[,2] * B. What is the most efficient way
to express that? I'm trying to use 'apply' with no success...
Thanks for your help!
-- --
Jose Luis Aznarte M. http://decsai.ugr.es/~jlaznarte
Department of Computer Science and Artificial Intelligence
Universidad de Granada Tel. +34 - 958 - 24 04 67
GRANADA (Spain) Fax: +34 - 958 - 24 00 79
2007 Sep 07
2
Matlab's lsqnonlin
...ke to use the Levenberg
Marquardt algorithm which is not implemented in R (some discussion about
this: http://tolstoy.newcastle.edu.au/R/help/00b/2492.html).
Thank you! All the best,
-- --
Jose Luis Aznarte M. http://decsai.ugr.es/~jlaznarte
Department of Computer Science and Artificial Intelligence
Universidad de Granada Tel. +34 - 958 - 24 04 67
GRANADA (Spain) Fax: +34 - 958 - 24 00 79
2008 Jan 04
1
Multi-dimensional function.
Hi there! Happy new year to everyone!
There's a piece of code that I must write that's driving me crazy.
Maybe any of you has previous experiences in something similar. Any help
will be greatly appreciated!
The problem is as follows. I have a matrix Z with dimensions c(m,
p). I have two vectors
Gamma and Th with length p.
What I want to do is, for j in 1:p, for each pair