This function requires the bigdata library section to be loaded.
bd.sort(data, by.columns,
ascending=T, na.last=F, alphabetic.factors=T)
bdFrame or
data.frame.
TRUE, the
by.columns elements are sorted in ascending order.
FALSE, they are sorted in descending order.
by.columns.
TRUE, any
by.columns elements that are missing values
are ordered after any non-missing values.
FALSE, they are ordered before all of the non-missing values.
by.columns.
TRUE, factor values are sorted alphabetically
by the alphabetic order of the factor level strings.
FALSE, factor values are sorted by the factor numbers.
bdFrame or
data.frame
of the same type as
data.
Contains the sorted rows from the input dataset.
## sort by Type name, and for each each value of this.
## sort by Mileage.
bd.sort(fuel.frame, c("Type", "Mileage"))