On 16.05.2012 15:51, Bharat Warule wrote:
Hello R user,

I have four data sets in dir "D:/Bharat Warule/Rdata_file" which are
output_data_prod_1.rda, output_data_prod_2.rda, output_data_prod_3.rda,
output_data_prod_4.rda.
Each data set is huge size like number of rows 343297 and columns are near
to 50.

For example:

x1<- data.frame(x11=c(1,2,3,4,5),x112=c(10,10,10,10,10))
x2<- data.frame(x11=c(1,2,3,4,5),x122=c(20,20,20,20,20))
x3<- data.frame(x11=c(1,2,3,4,5),x132=c(30,30,30,30,30))
x4<- data.frame(x11=c(1,2,3,4,5),x142=c(40,40,40,40,40))
x5<- data.frame(x11=c(1,2,3,4,5),x152=c(50,50,50,50,50))

for(i in 1:5){
name<- paste('x',i,sep='')
name1<- paste(name,"rda",sep='.')
save(name, file = name1)

To fix this part, use:

save(list = name, file = name1)


}


I want merge this data sets into one data set but I don’t know where I am
going wrong?

Please help me. Thanks for your help.

subsetname<-  "x1"
file_no<-   4
output_data_prod<-   data.frame()

for(n in 1:file_no){
  myfile<- gsub("( )", "", paste(subsetname , "_", n,".rda"))

To match the above:

 myfile    <- gsub("( )", "", paste(subsetname , n, ".rda", sep=""))

  temp_data<- load(file = myfile)
  data_22<- get(temp_data)

  if(dim(output_data_prod)[1]==0){output_data_prod<- data_22
       }else{
   output_data_prod<- merge(inData1 = output_data_prod,

Nonsense, the arguments of merge are called x and y rather than inData1 and inData2.

Uwe Ligges

        inData2 = data_22 ,type = "inner", all=FALSE ,
                by =c("x11"))}
        
}


-----
Bharat Warule
Cypress Analytica ,
Pune
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