Hello,
I use an imported dataframe and want to extract the mean value for one
column.
after typing "mean (rae.df$VOL_DEP)" I receive
"[1] NA
Warning message:
Argument ist weder numerisch noch boolesch: gebe NA zurück in:
mean.default("rae.df$POINT_Y_CH") "
But when i look into the dataframe the column is characterized as numeric.
Sorry for bothering but as a complete newbie I just cannot halp myself.
Greetings,
thomas
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