Description Usage Arguments Value Examples
Finds the NAs in the data and returns the respective column index.
1 |
data |
a numerical vector or a numerical nxp data matrix. |
all |
a logical, if TRUE (default), the function finds columns which consist only of NAs. If FALSE, it finds the columns with any number of NAs. |
an index vector of the position of NAs.
1 2 |
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