Hi Raphael,
see below.
I have the following data frame (df):
...
> df2
X.PAD2 Y.PAD2
73 574618.3 179650
74 574719.0 179688
75 574719.0 179688
76 574723.5 179678
77 574724.9 179673
78 574747.1 179598
79 574641.8 179570
80 574639.6 179573
81 574618.3 179650
82 NA NA
83 NA NA
...
44 NA NA
45 NA NA
46 NA NA
followed by removing the NA's using
> df2 <- df2[!is.na(df2),]
...
is.na( df2) produces a logical matrix (!), and you are then indexing the
rows of your data frame with a matrix which is "converted" into a vector
of its elements producing far too many logical indices for your task (so
to say).
I assume you should be using
na.omit( df2)
instead.
Hth -- Gerrit
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