[R] glmnet object to pmml

2012-05-18 Thread Yan Jiao
Dear R users

I used glmnet  generating a regression model, now I need to convert it to pmml 
format, but I noticed pmml r package doesn't support glmnet object, has anyone 
find a way solving this problem? I was thinking convert glmnet object to glm 
object, has anyone tried it?

Many thanks

Yan

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[R] using jit

2012-02-29 Thread yan jiao

Dear R gurus,

I'm trying to use jit package to parallel my computing
do you put jit(2) /jit(1) in front of every loops? I got 8 nested loops 
in my code.


many thanks

yan

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[R] discrete simulated annealing

2012-01-30 Thread yan jiao

Dear All,

I need to use simulated annealing for optimization
is there a way to limit the search place to only discrete values? And 
also exclude certain solutions, e.g. exclude the solutions when all the 
variables are the same?


many thanks

Yan

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[R] function restrictedparts

2012-01-25 Thread yan jiao

I am using function restrictedparts, but got error:


restrictedparts(281,10)
Error in integer(len) : vector size specified is too large
Calls: restrictedparts - integer
In addition: Warning message:
In restrictedparts(281, 10) : NAs introduced by coercion
Error in integer(len) : vector size specified is too large
Calls: restrictedparts - integer


is there a similar function can deal with long vector?

I'm using R version 2.14.1 (2011-12-22),x86_64, linux-gnu

many thanks

yan

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[R] function for grouping

2012-01-24 Thread yan jiao

Dear All,

I'm wondering if there is a R function could give me all the 
combinations of the grouping/cluster result, given the number of the groups.

e.g.
3 objects: x1 x2 x3, number of groups is 2
so the result will be
group1:x1,x2; group2: x3
group1: x1;group2: x2,x3
group1: x1,x3;group2: x2

many thanks

yan

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[R] submit R package

2011-05-17 Thread Yan Jiao
Dear all,

I'm just wondering how to submit a package to cran?
I followed the instruction, using anonymous as username and my email address as 
password, but it didn't connect.

Any hints?

Yan

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[R] function order

2011-04-06 Thread Yan Jiao
Dear All

I'm trying to sort a matrix using function order,
Some thing really odd:

e.g.
abc-cbind(c(1,6,2),c(2,5,3),c(3,2,1))## matrix I want to sort

if I do
abc[ order(abc[,3]), increasing = TRUE]

the result is correct
 [,1] [,2] [,3]
[1,]231
[2,]652
[3,]123

But if I want to sort in decresing order:
abc[ order(abc[,3]), decreasing = TRUE]

the result is wrong
 [,1] [,2] [,3]
[1,]231
[2,]652
[3,]123

Also if I use
abc[ order(abc[,3]), increasing = FALSE]
it returns nothing
[1,]
[2,]
[3,]

Why is that?


Many thanks

Yan

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[R] add zero in front of numbers

2011-04-04 Thread Yan Jiao
Dear R users,

I need to add 0 in front of a series of numbers, e.g. 1-001, 19-019,
Is there a fast way of doing that?

Many thanks

yan

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[R] regression line on boxplots

2011-04-01 Thread Yan Jiao
Dear R users,

I'm trying to add a regression line on my boxplots (something 
like:boxplot(c(1:3),c(4:6),c(5:8)))
But I can't see it.
Please help !!!
It's not a April fool's joke!!!

Yan

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[R] mean in the boxplot

2011-04-01 Thread Yan Jiao
Dear R users,

How to show mean in the boxplot instead of median ?

Many thanks

Yan

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[R] output selectively change the font

2011-02-21 Thread Yan Jiao
Dear brainy R users,

 

I need to output a matrix, with two colors , meaning some elements using
different color

I normally use write.table(table.m, file=table file name.csv,
sep=,), how could I pass the index for the color ?

 

 

Many thanks

 

yan


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[R] Bron-Kerbosch algorithm

2011-02-14 Thread Yan Jiao
Dear R users

 

I need to solve the finding all cliques in a graph problem, is there a R
package implementing Bron-Kerbosch algorithm?

 

Many thanks

 

YAn


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[R] extracting characters from string

2011-02-10 Thread Yan Jiao
Dear R gurus,

 

If I got a vector with string characters like abcd_efgh_12ab3_dfsfd,
how could I extract 12ab3, which is the characters after second
underscore and before the third underscore?

 

Tons of thanks

 

yan

 

 


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[R] (no subject)

2011-02-04 Thread Yan Jiao
Dear R users?

 

I want to know how to use strata in survival analysis, I want to combine
multiple dataset:

 

Coxph(Surv(merged.time.v, merged.event.v)~merged.score+
strata(dataset.v))

 

So merged.time.v and merged.event.v are from multiple datasets.

How should I define dataset.v here?

 

Many thanks

 

yan

 

 


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[R] R string help

2011-02-01 Thread Yan Jiao
Dear R guru:

 

If I got a variable 

aaa- up.6.11(16)

 

how can I extract 16 out of the bracket?

I could use substr, e.g.

substr(aaa, start=1, stop=2)

[1] up

 

But it needs start and stop, what if my start or stop is not fixed, I
just want the number inside the bracket, how can I achieve this?

 

Many thanks

 

yan


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[R] axis name editing

2011-01-28 Thread Yan Jiao
Dear All,

I'm generating a heatmap, is there a way to make Y axis name display
horizontally, X axis name display vertically?

I tried using horiz=TRUE:

axis(1,at=1:dim(cor.meta.m)[1],labels=gsub(module,,pw.names),horiz=T
RUE)

 

but got warning message and the name is not displayed as I wish:

 

Warning message:

In axis(1, at = 1:dim(cor.meta.m)[1], labels = gsub(module, ,  :

  horiz is not a graphical parameter

 

Please help, my R version is 2.12.0

 

Many thanks

 

Yan


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[R] igraph package question

2011-01-27 Thread Yan Jiao
Dear R users,

 

I'm using igraph package for clustering, just wondering is
leading.eigenvector.community function result deterministic or not?

I got slightly different results on different runs...

 

Many thanks

 

Yan

 

 


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[R] problem of loading workspace

2010-07-14 Thread Yan Jiao
I'm using R x64 2.11.0(windows)

I was trying to load workspace I saved some days ago, but  got the
error:

ReadItem: unknown type 63, perhaps written by later version of R.

Has anyone come across the same problem? Any solutions?

 

 

Many thanks 

yan


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