Re: [R] writing 100 files

[Duncan Murdoch]

On 5/22/2006 11:24 AM, Federico Calboli wrote:
 Hi All,
 
 I need to write as text files 1000 ish variation of the same data frame, 
 once I permute a row.
 
 I would like to use the function write.table() to write the files, and 
 use a loop to do it:
 
 for (i in 1:1000){
 
 bb8[2,] = sample(bb8[2,])
 write.table(bb8, quote = F, sep = '\t', row.names = F, col.names = F, 
 file = 'whatever?.txt')
 }
 so all the files are called whatever1: whatever1000
 
 Any idea?

Use the paste() function to construct the name, e.g.

file = paste(whatever,i,.txt, sep=)

Duncan Murdoch

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Re: [R] writing 100 files

[Uwe Ligges]

Federico Calboli wrote:

 Hi All,
 
 I need to write as text files 1000 ish variation of the same data frame, 
 once I permute a row.
 
 I would like to use the function write.table() to write the files, and 
 use a loop to do it:
 
 for (i in 1:1000){
 
 bb8[2,] = sample(bb8[2,])
 write.table(bb8, quote = F, sep = '\t', row.names = F, col.names = F, 
 file = 'whatever?.txt')
 }
 so all the files are called whatever1: whatever1000
 
 Any idea?
 
 Cheers,
 
 Federico
 

This is the FAQ How can I save the result of each iteration in a loop 
into a separate file?

Please read the FAQs prior to posting!

Uwe Ligges

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Re: [R] writing 100 files

[Marc Schwartz (via MN)]

On Mon, 2006-05-22 at 16:24 +0100, Federico Calboli wrote:
 Hi All,
 
 I need to write as text files 1000 ish variation of the same data frame, 
 once I permute a row.
 
 I would like to use the function write.table() to write the files, and 
 use a loop to do it:
 
 for (i in 1:1000){
 
 bb8[2,] = sample(bb8[2,])
 write.table(bb8, quote = F, sep = '\t', row.names = F, col.names = F, 
 file = 'whatever?.txt')
 }
 so all the files are called whatever1: whatever1000
 
 Any idea?
 
 Cheers,
 
 Federico


The same process used in R FAQ 7.34: 

  How can I save the result of each iteration in a loop into a separate
  file?

can be used here.  Instead of using save(), use write.table(), adjusting
the arguments accordingly.

HTH,

Marc Schwartz

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Re: [R] writing 100 files

[Sachin J]

Try this:
   
  x - 1:12
for (i in 1:2){
bb8 = sample(x)
a - sprintf(whatever%f.txt,i)
write.table(bb8, quote = F, sep = '\t', row.names = F, col.names = F,
file = a)
}

  HTH
   
  Sachin
  
Duncan Murdoch [EMAIL PROTECTED] wrote:
  On 5/22/2006 11:24 AM, Federico Calboli wrote:
 Hi All,
 
 I need to write as text files 1000 ish variation of the same data frame, 
 once I permute a row.
 
 I would like to use the function write.table() to write the files, and 
 use a loop to do it:
 
 for (i in 1:1000){
 
 bb8[2,] = sample(bb8[2,])
 write.table(bb8, quote = F, sep = '\t', row.names = F, col.names = F, 
 file = 'whatever?.txt')
 }
 so all the files are called whatever1: whatever1000
 
 Any idea?

Use the paste() function to construct the name, e.g.

file = paste(whatever,i,.txt, sep=)

Duncan Murdoch

__
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