From ligges at statistik.uni-dortmund.de  Tue Jul  5 15:48:18 2005
From: ligges at statistik.uni-dortmund.de (Uwe Ligges)
Date: Tue, 05 Jul 2005 15:48:18 +0200
Subject: [Rd] axTicks on a reverse ylog plot (PR#7973)
In-Reply-To: <20050628005558.25EE2A27A@slim.kubism.ku.dk>
References: <20050628005558.25EE2A27A@slim.kubism.ku.dk>
Message-ID: <42CA8FA2.7010007@statistik.uni-dortmund.de>

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
> 
> ______________________________________________
> R-devel at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-devel



[Rd] axTicks on a reverse ylog plot (PR#7973)
Uwe Ligges