Either of these should work:
tt = c( "01:03:30", "18:21:03", "22:29:56",
"23:03:20" )
y <- 1:4
require(chron)
plot(chron(times=tt),y)
# or
plot(strptime(tt,format="%H:%M:%S"),y)
---
Date: Tue, 11 Nov 2003 20:36:57 -0800
From: John <heimdal at aracnet.com>
To: <r-help at stat.math.ethz.ch>
Subject: [R] Time plot question.
Hello,
I have parsed out some data from a file containing output from the top
command. The time stamps are of the form "hh:mm:ss". When the command
plot( Time, FreeMemory, type = "l", col = "blue", main =
"\"swap in use\"
versus Time", xlab = "Time", ylab = "Swap in Use")
is executed, the plot() function ignores the col and type arguments and plots
the points in some sort of default manner. Do I need to use strptime() and
reformat the "Time" coordinates? Where could I find some documentation
on
this, as the R docs that I am aware of do not contain an example of this. Any
suggestions on this will be greatly appreciated.
Cheers,
John
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