[R] plotting date data over couple of months
vamshi999
vamshi999 at gmail.com
Thu Jul 14 03:42:52 CEST 2011
i am sorry again..
this is my dataset..
'data.frame': 46376 obs. of 19 variables:
$ scan.no : int 24 78 61 64 64 64 65 73 79 82 ...
$ track.no : int 5 48 105 122 124 121 123 380 1073 1093 ...
$ blip.no : int 70 323 514 547 549 553 558 5355 7014 7119 ...
$ date : chr "2011-04-29" "2011-04-29" "2011-04-29" "2011-04-29" ...
$ time : chr "18:17:56" "18:20:08" "18:24:58" "18:25:05" ...
$ timestamp: num 1.30e+09 1.30e+09 1.30e+09 1.30e+09 1.30e+09 ...
$ range : int 1379 937 555 562 562 555 545 2708 593 2354 ...
$ x : int -997 -487 -1 230 139 -1 223 -2362 163 2017 ...
$ y : int -883 -763 -536 -491 -525 -536 -477 1123 -549 1049 ...
$ z : int 357 243 144 145 146 144 141 701 153 609 ...
$ ns : int 378 72 72 98 115 72 41 31 44 32 ...
$ area : int 16579 2144 1270 1750 2061 1270 710 2668 829 2394 ...
$ int : num 0.96 0.82 1 0.999 0.969 1 1 0.816 1 1 ...
$ max : num 1 0.984 1 1 1 1 1 0.933 1 1 ...
$ aspan : int 69 28 36 40 44 36 40 13 12 8 ...
$ rspan : int 8 5 2 4 4 2 2 6 5 4 ...
$ perim : int 670 613 125 288 206 125 108 445 221 211 ...
$ Dir : num 1 1 1 2 1 1 2 1 2 1 ...
$ bearing : num 228 213 180 155 165 ...
now previously i have not mentioned these variable because i will be
removing them eventually....
when i run the above code.. i am getting this error message..
plot(dat$date, dat$height, xaxt="n")
> axis(1, at=new_data2$date[c(1,46376)],
+ labels=month.abb[ 1+as.POSIXlt(new_data2$date[c(1,46376)])$mon],
+ line=2,
+ lwd=0)
Error in axis(1, at = new_data2$date[c(1, 46376)], labels = month.abb[1 + :
no locations are finite
In addition: Warning message:
In axis(1, at = new_data2$date[c(1, 46376)], labels = month.abb[1 + :
NAs introduced by coercion
axis(1, at=new_data2$date, labels=as.POSIXlt(new_data2$date)$mday)
Error in axis(1, at = new_data2$date, labels =
as.POSIXlt(new_data2$date)$mday) :
no locations are finite
In addition: Warning message:
In axis(1, at = new_data2$date, labels = as.POSIXlt(new_data2$date)$mday) :
NAs introduced by coercion
i am looking for an output same as the plot in the image below..
http://r.789695.n4.nabble.com/file/n3666468/graph.jpg
y - axis is the mean passage rate ( total no. of birds /hr)
i have read the posting guide as you have suggested.....
thank you ..
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