Is there a place to find a list of the legal values for the
coord_trans parameters. I spent a bunch of time searching the ggplot2
docs and r-help for same without success. I also made an attempt at
looking at the code in R which also failed.
--
David.
On Sep 6, 2009, at 10:12 AM, hadley wickham wrote:
Hi Michael,
You could use aes(y = 1000 * myyvar) and coord_trans(trans_y =
"inverse")
Hadley
On Sun, Sep 6, 2009 at 6:30 AM, Michael Kubovy<kub...@virginia.edu>
wrote:
Hi Stephen,
Because coord_trans() does all the work of plotting the original
values on
the tranformed scale. See ?coord_trans. To quote: "The difference
between
transforming the scales and transforming the coordinate system is
that scale
transformation occurs BEFORE statistics, and coordinate
transformation
afterwards."
# After
require(ggplot2)
data(diamonds)
# Three ways of doing transformating in ggplot:
# * by transforming the data
qplot(log10(carat), log10(price), data=diamonds)
# * by transforming the scales
qplot(carat, price, data=diamonds, log="xy")
qplot(carat, price, data=diamonds) + scale_x_log10() +
scale_y_log10()
# * by transforming the coordinate system:
qplot(carat, price, data=diamonds) + coord_trans(x = "log10", y =
"log10")
Michael
On Sep 5, 2009, at 9:01 PM, stephen sefick wrote:
why not transform the y-data?
On Sat, Sep 5, 2009 at 8:03 PM, Michael
Kubovy<kub...@virginia.edu> wrote:
Hi,
Does anyone know how to do a coord_trans() in which the y-axis is
tranformed
into (for example) -1000/y?
Stephen Sefick
_____________________________
Professor Michael Kubovy
University of Virginia
Department of Psychology
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http://had.co.nz/
______________________________________________
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David Winsemius, MD
Heritage Laboratories
West Hartford, CT
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