[R] Getting tick positions
bitwrit at ozemail.com.au
Wed Mar 2 23:56:19 CET 2005
Thanks for the answers - I should have been more specific as I had already
tried axTicks and pretty.
The function in question is gantt.chart() in the latest plotrix package
(Thanks to Scott Waichler for the original code). I settled on axis.POSIXct
as it seemed the most appropriate for this function, but couldn't find a way
to get the positions of the ticks so that I could then draw grid lines along
the months|days|hours. While the trick of copying the original function
works, I wondered why the axis* functions don't return the tick positions as
barplot returns the bar positions. Is there any reason not to return "z", or
is it just historical?
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