RDA, Error in colMeans(x, na.rm = TRUE) : 'x' must be numeric, when data is numeric?
RDA, Error in colMeans(x, na.rm = TRUE) : 'x' must be numeric, when data is numeric? r
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Instead of using 'mode', you should be testing with 'class'. You probably have a factor column. They are of mode numeric but test FALSE with 'is.numeric'.