[R] subset-analogue removing fed in indexes?

[Gabor Grothendieck]

On 5/31/05, Johannes Graumann <graumann at caltech.edu> wrote:
> Hello,
> 
> Here's my issue:
> 
> I want to plot the following vectors:
> > x <- c(0.0, 2.0, 15.0, 100.0, 105.0, 105.1, 110.0, 120.0, 120.1,
> 130.0)
> > data <- c(8.75, 8.75, 16.25, 38.75, 61.25, 8.75, NA, 8.75, NA, NA)
> 
> and avoid the line discontinuations caused by 'NA'.
> > plot_data <- na.omit(data)
> will clean up 'data' for me, but now I need to get a 'plot_x' which
> omits the values indexed with what's spit out by 'na.exclude(data)'.
> 
> Can anybody let me know a smooth way of how to delete entries with
> certain indexes from a vector?

plot(approx(x,data))