datatable.FExpr.extend()¶
Append FExpr
arg
to the current FExpr.
Each FExpr
represents a collection of columns, or a columnset. This
method takes two such columnsets and combines them into a single one,
similar to cbind()
.
Append FExpr
arg
to the current FExpr.
Each FExpr
represents a collection of columns, or a columnset. This
method takes two such columnsets and combines them into a single one,
similar to cbind()
.