NA, where no NA should (could!) be!
I think we need the reproducible example requested in the posting guide. Sarah On Sat, Dec 20, 2008 at 4:42 PM, Oliver Bandel
<oliver at first.in-berlin.de> wrote:
Hello,
again I'm on my weblog-script... having problems...
This code:
===========================
weblog <- read_weblog("web.log")
weblog_by_date <- split(weblog, weblog$date)
#for ( i in names(weblog_by_day) ) { print(i); print(weblog_by_day$i) }
for ( datum in names(weblog_by_date) )
{
print(datum)
selected <- weblog_by_date[[datum]]
res_size_by_host <- tapply( selected$size, selected$host, sum)
mycat <- function(a,b) cat(paste(a, "==>", b, "\n"))
mapply( mycat, selected$size, selected$host )
print( res_size_by_host )
}
===========================
produces this result (only a part is shown!):
=======================================
124.0.210.117 145.253.3.244 160.91.44.155 174.36.196.98
193.47.80.48
NA NA NA NA
NA
200.212.63.51 200.87.53.234 208.80.194.30 208.80.194.35
208.80.194.46
NA 294 NA 5774
NA
208.80.194.49 209.17.171.58 210.207.57.39 211.171.202.85
211.43.212.94
=======================================
There are no "NA"-values, because the function read_weblog()
replaces all NA by 0.
So there should be no way to produce NA's!
How can this happen?
Ciao,
Oliver
Sarah Goslee http://www.functionaldiversity.org