How to do indexing after splitting my data-frame?
try: myindex <- "01-Dec-2008" weblog_by_date[[myindex]]$host On Sat, Dec 20, 2008 at 3:35 PM, Oliver Bandel
<oliver at first.in-berlin.de> wrote:
Hello, after splitting a data-frame I want to access the results. Maybe the problem is, that the factor/index is a string... ...or do I miss knowing details of the index-uasge? Please look and help: =======================================
weblog <- read_weblog("web.log")
str(weblog)
'data.frame': 2247 obs. of 18 variables: $ host : Factor w/ 77 levels "124.0.210.117",..: 23 44 44 23 46 46 26 26 42 32 ... $ lname : Factor w/ 1 level "-": 1 1 1 1 1 1 1 1 1 1 ... $ user : Factor w/ 1 level "-": 1 1 1 1 1 1 1 1 1 1 ... $ date_time : chr "29/Nov/2008:00:09:52" "29/Nov/2008:01:08:37" "29/Nov/2008:01:08:37" "29/Nov/2008:03:39:45" ... $ timezone : chr "+0100" "+0100" "+0100" "+0100" ... $ status : int 404 200 304 403 301 200 200 404 304 200 ... $ size : num 307 32 0 314 333 ... $ referrer : Factor w/ 19 levels "-","http://messenger.su/",..: 1 1 1 1 1 1 11 1 1 1 ... $ client : Factor w/ 45 levels "digsby-asynchttp/0.1",..: 30 4 4 30 28 28 20 20 27 41 ... $ req_file : chr "/software/tools/newfileaction/pftdbns/" "/robots.txt" "/kurama_2007/tn_kurama_fire_festival_hpim4496.jpg" "/software/libraries/mboxlib/mbox.mli.html" ... $ req_method: chr "GET" "GET" "GET" "GET" ... $ req_prot : chr "HTTP/1.0" "HTTP/1.1" "HTTP/1.1" "HTTP/1.0" ... $ date : chr "29-Nov-2008" "29-Nov-2008" "29-Nov-2008" "29-Nov-2008" ... $ hour : chr "00" "01" "01" "03" ... $ day : chr "29" "29" "29" "29" ... $ month : chr "Nov" "Nov" "Nov" "Nov" ... $ year : chr "2008" "2008" "2008" "2008" ... $ t_sec : atomic 1.23e+09 1.23e+09 1.23e+09 1.23e+09 1.23e+09 ... ..- attr(*, "tzone")= chr ""
weblog_by_date <- split(weblog, weblog$date) weblog_by_date$"01-Dec-2008"$host
[1] 74.6.22.164 74.6.22.164 74.6.22.164 67.195.37.169 [5] 67.195.37.169 74.6.22.164 174.36.196.98 174.36.196.98 [9] 67.195.37.169 72.30.65.23 72.30.65.23 65.55.210.177 [13] 65.55.210.177 74.6.22.160 74.6.22.160 74.6.22.121 [17] 74.6.22.121 208.80.194.30 66.249.71.141 66.249.71.141 [21] 66.249.71.141 216.34.181.101 216.34.181.101 65.55.210.182 [25] 65.55.210.182 38.99.44.101 217.212.224.183 217.212.224.186 [29] 89.111.176.102 89.111.176.102 66.249.71.141 65.55.210.180 [33] 65.55.210.180 65.55.210.179 65.55.210.179 77 Levels: 124.0.210.117 145.253.3.244 160.91.44.155 ... 94.23.3.220
myindex <- "01-Dec-2008" weblog_by_date$myindex$host
NULL
weblog_by_date[myindex]$host
NULL
=======================================
How can I grab into the data-structures, using the indexing by
date-string and by the names like "host" and so on?
So: is it posisble to use split in a way, that the original index-names
("host", "status" and so on) can be used?
Ciao,
Oliver
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