Hi David,
Just changed to the standard plot from xyplot and it worked fine. I'll check
out panel.lmline.
Thanks for your help.
Gerard
On Oct 6, 2010, at 3:27 PM, David Winsemius wrote:
>
> On Oct 6, 2010, at 5:56 PM, Gerard Smits wrote:
>
>> Hi All,
>>
>> I am running a scatter plot and trying to add a best fit line. I use an
>> abline function, but get no line drawn over the points.
>
> xyplot is Lattice
> abline is base graphics
>
>> I also get no error. I arm using V 2.10.0 on Windows 7.
>>
>> Here is my code, including the SAS transport file import:
>
> Nope. Read the Posting Guide about attachments to the list. Nice try, though.
>
>>
>> require (foreign)
>> require (chron)
>> require (Hmisc)
>> require (lattice)
>>
>> clin <- sasxport.get("y:\\temp\\subset.xpt")
>> attach(clin)
>>
>>
>> plot.new()
>> xyplot(jitter(b.lvef)~jitter(log.fgf),
>> main="Scatter Plot of Baseline Ejection Fraction\nby Log10 FGF-23",
>> ylim=c(10,90),
>> ylab="Ejection Fraction", xlab="Log10 FGF-23")
>
> Instead consider:
> ?panel.lmline
>
> Perhaps (untested in absence of data):
>
> plot.new()
> xyplot(jitter(b.lvef)~jitter(log.fgf), panel = function(x, y) {
> panel.xyplot(x, y)
> panel.lmline(x,y)
> },
> main="Scatter Plot of Baseline Ejection Fraction\nby Log10 FGF-23",
> ylim=c(10,90),
> ylab="Ejection Fraction", xlab="Log10 FGF-23")
>
>
>>
>> abline(lm(b.lvef~log.fgf))
>>
>> Any suggestions appreciated.
>>
>> Thanks,
>>
>> Gerard
>> [[alternative HTML version deleted]]
>>
>
> David Winsemius, MD
> West Hartford, CT
>
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