reorder() no longer functioning as expected

[Brandon Bertelsen]

In previous versions - I used to use reorder(x,y) in the aesthetic to reorder factor variable (x) by some numeric column (y). This no longer seems to function. 

When using coord_flip(), I used to be able to cheat, with something like reorder(x,-as.numeric(dat$x)) to ensure that the flip kept the factors in my preferred order. But this doesn't seem to work anymore. 

Can anyone show me how to maintain the original factor order when using coord_flip() and also, speak to what's happened to the functionality available in reorder()?

[Winston Chang]

I don't know about reorder(), but you can add something like:

  scale_x_continuous(limits = rev(levels(dat$x)))

-Winston

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[Dennis Murphy]

I think we'll need a reproducible example from you because the
following example from the ggplot2 book (p. 124) seems to work for me:

mpg2 <- subset(mpg, cyl != 5 & drv %in% c('4', 'f'))
mpg3 <- within(mpg2, {
model <- reorder(model, cty)
manufacturer <- reorder(manufacturer, -cty)
} )
qplot(cty, model, data = mpg3)
qplot(cty, model, data = mpg3) + coord_flip() +
opts(axis.text.x = theme_text(angle = 90))

> sessionInfo()
R version 2.15.0 (2012-03-30)
Platform: x86_64-pc-mingw32/x64 (64-bit)

locale:
[1] LC_COLLATE=English_United States.1252
[2] LC_CTYPE=English_United States.1252
[3] LC_MONETARY=English_United States.1252
[4] LC_NUMERIC=C
[5] LC_TIME=English_United States.1252

attached base packages:
[1] grid stats graphics grDevices utils datasets methods
[8] base

other attached packages:
[1] plyr_1.7.1 reshape2_1.2.1 scales_0.2.1 deldir_0.0-19 MSG_0.2
[6] proto_0.3-9.2 ggplot2_0.9.1

loaded via a namespace (and not attached):
[1] colorspace_1.1-1 dichromat_1.2-4 digest_0.5.2 labeling_0.1
[5] MASS_7.3-18 memoise_0.1 munsell_0.3 RColorBrewer_1.0-5
[9] stringr_0.6 tools_2.15.0

Dennis