[R] sort a data frame according to all the Columns

[Erik Iverson]

Erik Iverson wrote:
> I think you want ?order
> 

On second read, I think you want to do this without having to specify 
all 18 variables in an order call... something like this (with only 3 
variables)

v1 <- sample(rep(1:10, each = 2))
v2 <- sample(1:20)
v3 <- sample(1:20)
tmp <- data.frame(v1, v2, v3)

tmp[do.call(order, as.list(tmp)),]

The data.frame tmp is my sample data.frame, and notice how the last line 
  I posted sorts by all columns without referencing the number of columns.

Hope that helps!
Erik


>> Hi, I have a data frame read from a .csv file, with columns 
>> V1,V2,V3...,V18, per say, and I want to sort this data frame according 
>> to V1, and then V2, then V3..., and so on. Is there any fast way to 
>> get around with this problem?
>> Thanks.
>>
>> -JJ
>>
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> 
> ______________________________________________
> R-help at 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.