Displaying 2 results from an estimated 2 matches for "timeaxi".
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timeaxis
2007 Sep 27
3
testing the contents of an environment
Suppose I want to delete everything in my working directory that is not
a function. It seems that
sapply(ls(),is.function)
always returns FALSE, because ls() returns objects of mode character.
How do I evaluate is.function(), not on a character string, but on the
object that character string represents?
Thanks,
Tim
2007 Oct 25
1
Strange behavior with time-series x-axis
I recently called plot(x,y) where x was an array of POSIXct timestamps,
and was pleasantly surprised that it produced a nice plot right out of
the box:
z <- as.POSIXct(c("2006-10-26 08:00:00 EDT","2007-10-25 12:00:00 EDT"))
x <- seq(z[1],z[2],len=100)
y <- 1:100
plot(x,y,type="l")
The X axis had nice labels, one tick mark every other month. (Plotting
on