Ha!
Thanks for all of your replies. I just wasn't looking at the right
place in the help pages -- I see it now.
Feeling very silly but, as always, grateful for the support of this list.
Cheers,
Sarah
Sarah,
I guess you simply want to pull up the help pages for these functions.
They come with arguments like na.rm=T and that takes out the NA
values before doing the calculations.
Best regards,
Andreas
Sarah Henderson wrote:
Hi all --
I am doing thousands of preliminary plots to investigate the
relationship between daily measurements of forest fire intensity
and the aerosol optical thickness (AOT) as measured by
MODIS. Values for AOT are null if there is any cloud in the
atmospheric column, so these data are spotty at best. On average I
have values for 200 out of 365 days.
I would like to fit a smoothed line through the AOT values to get a
better visualization of what's happening, but all of the functions
(smooth, lowess, spline) seem not to accept NAs. However, if I run
smoothing plots from the GUI they work just fine so it must be
dealing with these null values somehow.
Can anyone suggest a quick fix?
Many thanks,
Sarah
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