state: Modify manipulator state
In manipulate: Interactive Plots for RStudio

Description Usage Arguments Value See Also Examples

These functions allow the storage of custom state variables across multiple evaluations of manipulator expressions. These functions are useful if the manipulate expression is a custom function (rather than a high level plotting function like plot) which requires reading and writing of persistent values.

1 2	manipulatorSetState(name, value) manipulatorGetState(name)

`name`	A chraracter string holding a state variable name.
`value`	An object holding a state value.

manipulatorGetState returns a custom state value which was previously set by manipulatorSetState (or NULL if the specified name is not found).

manipulate

## Not run: 

## set custom state variable
manipulatorSetState("last", x)

## get custom state variable
last <- manipulatorGetState("last")
if ( !is.null(last) ) {
  # do something interesting
}


## End(Not run)