How can I have R count the number of times a value x appears in the vector? Share. ... <看更多>

row_count() mimics base R's rowSums() , with sums for a specific value indicated by count . Hence, it is equivalent to rowSums(x == count, na.rm = TRUE) . ... <看更多>

The uppercase versions will work with vectors, which are treated as if they were a 1 column matrix, and are robust if you end up subsetting your data such ... ... <看更多>

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