[R] error bars

[David Winsemius]

On Oct 25, 2012, at 2:45 PM, Johnson, Franklin Theodore wrote:

> Hello R-help,
> 
> 
> 
> I am using R version 2.15.1.
> 
> I upgraded from R version 2.13 a few months back.
> 
> 
> 
> Previously, I was able to plot error bars on an xy scatter plot using the errbar function:
> 
> errbar(RAEthylene$TIME,RAEthylene$AVE,RAEthylene$AVE+RAEthylene$STD,RAEthylene$AVE-RAEthylene$STD,add = TRUE,lty=2,pch=17);
> 
> 
> 
> Today, I went to update my plot.
> 
> However, in R version 2.15.1 I get error code saying that this function cannot be found:
> 
> Error: could not find function "errbar"
> 
> I would perfer to avoid using the xy.error.bars<-function(x, y, xbar, ybar) coding for these error bars, as I have many data to put on one plot.
> 
> I've searched the .pdf file for R 2.15.1 version and cannot find any updates for this function.
> 
> Do I have to reinstall version 2.13 again??

There is no base::errbar function. You probably were using a package and have not yet reinstalled that package under the new version of R. When I run sos::findFn('errbar') I see two packages (Hmisc and sfsmisc) with a function of that name.

-- 

David Winsemius, MD
Alameda, CA, USA