stage: Create a stage for an experiment
In hughjonesd/betr: betr: Behavioral Experiments Toolkit in R

Description Usage Arguments Format Details Value See Also Examples

Stages are the building blocks of experiments. A single stage can result in one or more HTML pages shown to participants.

stage(handler, name = "No name")

NEXT

WAIT

`handler`	A function which returns either a character string containing HTML, a `Rook::Response` object, the constant `WAIT`, or the constant `NEXT`.
`name`	optional name of the stage.

1	Class 'NEXT' num -1

If WAIT is returned, the participant will be shown a standard "waiting page" which refreshes after a defined time interval. If HTML or a Response object is returned, then it is passed back to the participant. In these cases the stage will be called again next time the participant makes a request. If NEXT is returned, the participant will be moved forward to the next period, and the next stage will be called immediately.

a Stage object suitable for adding to an experiment.

Other stages: checkpoint; form_stage; period; program; text_stage; timed

stg <- stage(function(id, period, params) {
 if(params$done=="OK") return(NEXT)
 c("<html><body><p>Your ID is ", id, " and the period is", period,
       "</p><form action='' method=POST>
       <input type='Submit' name='done' value='OK'></form></body><html>")
})