On 4/15/2009 11:45 AM, Vemuri, Aparna wrote:
Duncan
I tried writeLines. But I need to print about 230000 lines and it is
really slow.
This took about 1 second here:
writeLines(as.character(1:230000), "C:/temp/test.txt")
I can't see how to make it much faster than that.
Duncan Murdoch
Thanks
Aparna
-----Original Message-----
From: Duncan Murdoch [mailto:murd...@stats.uwo.ca]
Sent: Tuesday, April 14, 2009 4:34 PM
To: Vemuri, Aparna
Cc: r-help@r-project.org
Subject: Re: [R] Controlling widths in write.fwf()
On 14/04/2009 7:28 PM, Vemuri, Aparna wrote:
Is there a way to handle the widths of values being written to a file
using wrtite.fwf() ?
For example, I used read.fwf(file, width.vector) to read a file. After
making the necessary data manipulation, I want to write the data to a
new file in the same width.vector format. Is there a way to specify
this?
There is no write.fwf function, but you can use sprintf() to convert
things to strings and writeLines to write those strings. There's a lot
of flexibility in the formats allowed; see the man page.
Duncan Murdoch
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