How about
a - sapply(test, function(x) x[1])
s - sapply(test, function(x) x[2])
e - sapply(test, function(x) x[3])
--
David L Carlson
Associate Professor of Anthropology
Texas AM University
College Station, TX 77843-4352
-Original Message-
From: r-help-boun...@r-project.org [mailto:r-help-bounces@r-
project.org] On Behalf Of Joel Pulliam
Sent: Monday, January 14, 2013 4:30 PM
To: r-help@r-project.org
Cc: pullia...@gmail.com
Subject: [R] I'm trying to parse 1 column of a dataframe into 3
seperate columns
I have a factor called 'utm_medium' in the dataframe 'data'
str(data$utm_medium)
Factor w/ 396925 levels
,affiliateID=sessionID=821850667323ec6ae6cffd28f380etag=,..:
366183 355880 357141 20908 357513 365348 368088 360827 31704 364767 ...
The data in this factor is delimited with ''. I basically want the
affiliateID, sessionID and etag data separated. Ex.
data$utm_medium[1:10]
[1]
affiliateID=4f3ac4b695e7dsessionID=993f4c447e68dfc36ed692223349f2e3et
a
g=
[2]
affiliateID=4f3ac4b695e7dsessionID=209dd9986ace55d50a450afeba62b78fet
a
g=
[3]
affiliateID=4f3ac4b695e7dsessionID=2efdb8e1e1f5ac9c0d5baec355c78f85et
a
g=
[4] affiliateID=sessionID=5a6ca9d41148f30ce694628427af7991etag=
[5]
affiliateID=4f3ac4b695e7dsessionID=331fbcdf1f3d5e7bac0d92c12e19f63det
a
g=
[6]
affiliateID=4f3ac4b695e7dsessionID=8fc27c8478e9bd30043ea4d3c7ddb29cet
a
g=
[7]
affiliateID=4f3ac4b695e7dsessionID=af467d480addffca43ffbdbce1edfdb4et
a
g=
[8]
affiliateID=4f3ac4b695e7dsessionID=598645e05a187ee63ff922a36360f021et
a
g=
[9] affiliateID=sessionID=8895e21d0842ed45063ba8328dc3bc61etag=
[10]
affiliateID=4f3ac4b695e7dsessionID=88ca2998c5a91b6efbece0c4f79caeb7et
a
g=
396925 Levels: ...
affiliateID=50bfbbbeed918sessionID=5c49c142cbf1b149c6a4647d1a4fc97bet
a
g=
I've parsed it via:
test -as.character(data$utm_medium)
test - strsplit(test, )
which results in a list, which I 'unlisted':
test2 - unlist(test)
and then attempted to extract into separate vectors:
a - vector(mode = character, length = length(test2))
s - vector(mode = character, length = length(test2))
e - vector(mode = character, length = length(test2))
i - 1
j - 1
for (i in 1:length(test2))
{
a[j] - test2[i]
s[j] - test2[i+1]
e[j] - test2[i+2]
i - i + 3
j - j + 1
}
This code runs, but I'm indexing it incorrectly and I can't figure out
why. I'll sleep on it tonight and probably figure it out, but I can't
help thinking that there's a much easier way to parse this data. Help!
Please!
joel
[[alternative HTML version deleted]]
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and provide commented, minimal, self-contained, reproducible code.
