Hi,
I have a object 'zoo':
dim(zz)
[1] 720 5551
where some columns only have NA's values (representing land data in a
sea surface temperature dataset) I find straightforward the use of
'na.approx' for individual columns from the zz matrix, but when applied
to the whole matrix:
zz.approx<-na.approx(zz)
Erro en approx(along[!na], y[!na], along[na], ...) :
need at least two non-NA values to interpolate
The message is clear, but how do I could skip those 'full-NA's' columns
from the interpolation in order to perform the analysis over the columns
which represent actual data with some NA's values
Best regards,
Antonio
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