[R] padding specific missing values with NA to allow cbind

[Rob Forsyth]

Thanks very much

On 11 Jun 2013, at 4:59 am, William Dunlap wrote:

> Try adding the argument
>   na.action = na.exclude
> to your call to lm().  See help("na.exclude") for details.
> 
> Bill Dunlap
> Spotfire, TIBCO Software
> wdunlap tibco.com
> 
> 
>> -----Original Message-----
>> From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org] On Behalf
>> Of Rob Forsyth
>> Sent: Monday, June 10, 2013 2:42 PM
>> To: r-help at r-project.org
>> Subject: [R] padding specific missing values with NA to allow cbind
>> 
>> Dear list
>> 
>> Getting very frustrated with this simple-looking problem
>> 
>>> m1 <- lm(x~y, data=mydata)
>>> outliers <- abs(stdres(m1))>2
>>> plot(x~y, data=mydata)
>> 
>> I would like to plot a simple x,y scatter plot with labels giving custom information
>> displayed for the outliers only, i.e. I would like to define a column mydata$labels for the
>> mydata dataframe so that the command
>> 
>>> text(mydata$y, mydata$x, labels=mydata$labels)
>> 
>> will label those rows where outliers[i] = TRUE with text but is otherwise blank
>> 
>> The first problem I have is that due to some NAs in mydata, nrows(outliers) <
>> nrows(mydata) and I'm getting in a tangle trying to pad the appropriate rows of outliers
>> 
>> Thanks
>> 
>> Rob
>> 
>> ______________________________________________
>> R-help at r-project.org mailing list
>> https://stat.ethz.ch/mailman/listinfo/r-help
>> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
>> and provide commented, minimal, self-contained, reproducible code.