Compute the frame's sum by-column (or by-row).
h2o.sum(x, na.rm = FALSE, axis = 0, return_frame = FALSE)
| x | An H2OFrame object. | 
|---|---|
| na.rm | 
 | 
| axis | An int that indicates whether to do down a column (0) or across a row (1). For row or column sums, the  | 
| return_frame | A boolean that indicates whether to return an H2O frame or one single aggregated value. Default is FALSE. | 
sum for the base R implementation.