ACCUMULATE
This is part of the generic module

Sum the elements of this value over the course of the trajectory

Examples
Glossary of keywords and components
Description of components

By default the value of the calculated quantity can be referenced elsewhere in the input file by using the label of the action. Alternatively this Action can be used to calculate the following quantities by employing the keywords listed below. These quantities can be referenced elsewhere in the input by using this Action's label followed by a dot and the name of the quantity required from the list below.

Quantity Description
.#!value a sum calculated from the time series of the input quantity
Compulsory keywords
ARG the label of the argument that is being added to on each timestep
STRIDE ( default=1 ) the frequency with which the data should be collected and added to the quantity being averaged
CLEAR ( default=0 ) the frequency with which to clear all the accumulated data. The default value of 0 implies that all the data will be used and that the grid will never be cleared
Options
NUMERICAL_DERIVATIVES

( default=off ) calculate the derivatives for these quantities numerically

UPDATE_FROM Only update this action from this time
UPDATE_UNTIL Only update this action until this time