roll_sum

An Robject of form: numeric vector, numeric
  matrix.

integer; the window / subset size to roll over.

boolean; if <code>TRUE</code> we loop over
  columns, otherwise we loop over rows.

by.column

A numeric vector of weights of same length
  as <code>n</code>.

weights

boolean; if <code>TRUE</code>, we normalize
  the weight of vectors supplied.

normalize

This function implements a rolling sum with C++/Rcpp.

RcppRoll supplies fast functions for 'roll'ing over
        vectors and matrices, e.g. rolling means, medians and
        variances. It also provides the utility functions 'rollit' and
        'rollit_raw' as an interface for generating your own C++ backed
        rolling functions.

roll_sum: Rolling Sum

Description

Usage

Arguments