[Rd] axTicks on a reverse ylog plot (PR#7973)
Uwe Ligges
ligges at statistik.uni-dortmund.de
Tue Jul 5 15:48:18 CEST 2005
mwtoews at sfu.ca wrote:
> There is still issues with the reversed y-log scale plot:
>
> # Test case A: works as expected
> plot(10:100,log="y",ylim=c(100,11))
> grid()
> par("yaxp")
>
> # Test case B: grid does not have horizontal lines; par("yaxp") is
> different
> plot(1:100,log="y",ylim=c(100,10))
> grid()
> par("yaxp")
>
> In the second test case, axTicks for the horizontal lines (in grid())
> returns numeric(0) for spacing ... how do the tick marks get drawn in
> the first place??
We had a problem with reversed log axis in R-2.1.0. There might be
similar underlying code for grid() I was not aware of when suggesting a
fix to make reversed log axis work for R-2.1.1 ...
I'll take a closer look later this week.
Uwe Ligges
> -mt
>
> --please do not edit the information below--
>
> Version:
> platform = powerpc-apple-darwin8.1.0
> arch = powerpc
> os = darwin8.1.0
> system = powerpc, darwin8.1.0
> status = Patched
> major = 2
> minor = 1.1
> year = 2005
> month = 06
> day = 26
> language = R
>
> Locale:
> en_CA.UTF-8/en_CA.UTF-8/en_CA.UTF-8/C/en_CA.UTF-8/en_CA.UTF-8
>
> Search Path:
> .GlobalEnv, package:methods, package:stats, package:graphics,
> package:grDevices, package:utils, package:datasets, Autoloads,
> package:base
>
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