[R] write list to ascii
Skála, Zdeněk (INCOMA GfK)
Zdenek.Skala at gfk.com
Thu Jul 19 16:21:47 CEST 2012
Dear Chris,
many thanks! This is just what I had in mind! (namely the 'sapply' solution).
Thank you and best regards!
Zdenek
-----Original Message-----
From: Chris Campbell [mailto:ccampbell at mango-solutions.com]
Sent: Thursday, July 19, 2012 4:11 PM
To: Skála, Zdeněk (INCOMA GfK)
Cc: r-help at r-project.org; Consultants
Subject: RE: write list to ascii
Dear Zdenek
You could generate this file using a loop.
# the data
abc <- list(one=(1:2), two=(1:5))
# create a connection
sink("aa.txt", append=T, split=T)
# for each element in the list, print
for (list_name in names(abc)) {
cat(list_name, unlist(abc[list_name]),"\n") }
# close connection
sink()
# here is another way that might be useful
# unlist the data
aa <- sapply(abc, paste, collapse = " ")
# generate the strings you need
bb <- paste("$", names(abc), " ", aa, sep = "")
# write out data
write.table(bb, "aa.txt", col.names = FALSE, row.names = FALSE, quote = FALSE)
# hope this helps
Best wishes
Chris
Chris Campbell
Mango Solutions
Data Analysis the Delivers
http://www.mango-solutions.com
+44 (0) 1249 705 450
-----Original Message-----
From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org] On Behalf Of Skála, Zdenek (INCOMA GfK)
Sent: 19 July 2012 10:10
To: r-help at r-project.org
Subject: [R] write list to ascii
Dear all,
apologies for this (perhaps recurrent) question but I did not found a question when searching mailing lists.
How to write a list of a simple kind, e.g.:
abc <- list(one=(1:2), two=(1:5))
# to a file? I understand that write() & co. cannot work but when I try
sink("aa.txt", append=T, split=T)
abc
sink()
# the output is indeed "split by rows" in the textfile, each starting with row numbers (and I have rather long "vectors" resulting in many rows...):
$one
[1] 1 2
$two
[1] 1 2 3 4 5
What I would need is a simple "set of vectors" starting with name in the style of:
$one 1 2
$two 1 2 3 4 5
Is it possible in R?
Many thanks!
Zdenek Skala
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