Description Usage Arguments Value Examples
Count return the number of row sastifying a condition.
1 | countif(expr)
|
expr |
A logical expression ora data.frame. If a data.frame or a vector is given, countif() return the number of rows. If a logical expression is given, countif() return the number of records satisfaying the condition If a logical expression is given, the expression can use short column names (variable names) as long as the default data.frame has been selected using setdata(thedataframe) |
Number of rows macthing the expression
1 |
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