Could also do it in one apply i realized..

apply(m,1:2,FUN=function(x) {y<-as.numeric(strsplit(x,split=",")[[1]]);y[which(y <= 3)]<-0;paste(y,collapse=",")})


On 06.07.2012, at 10:18, Jessica Streicher wrote:

> sap<-sapply(strsplit(m,","),as.numeric)
> sap[which(sap <= 3)]<-0
> mNew<-matrix(apply(sap,2,FUN=function(x){paste(x,collapse=",")}),ncol=4)
> 
> works?
> 
> On 06.07.2012, at 08:47, Sarah Auburn wrote:
> 
>> Hi,
>> I am trying to format some data (example matrix "m" below) for which each data point has 2 associated values separated by a comma.
>> I want to replace values <3 with "0" to give the example output below. 
>> I have got as far as:
>> out<-lapply(strsplit(m,","),as.numeric)
>> Failed to identify anything along the lines of "[out<3]<-0" that works...
>> Thank you for any help!
>> Sarah
>> 
>> m<-matrix(c("1,6", "0,12", "130,12", "0,0", "123,4", "2,2","3,7","9,6", "0,0", "12,2", "1,2", "0,3"), ncol=4)
>> 
>> required output:
>>     [,1]     [,2]    [,3]  [,4]  
>> [1,] "0,6"    "0,0"   "0,7" "12,0"
>> [2,] "0,12"   "123,4" "9,6" "0,0" 
>> [3,] "130,12" "0,0"   "0,0" "0,0" 
>> 	[[alternative HTML version deleted]]
>> 
>> ______________________________________________
>> R-help@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.
> 
> 
> 	[[alternative HTML version deleted]]
> 
> ______________________________________________
> R-help@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.


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