period: Begin a new period, optionally waiting for other subjects
In hughjonesd/betr: betr: Behavioral Experiments Toolkit in R

Description Usage Arguments Details Value See Also Examples

A period may contain one or more stages. When the experiment is started, all subjects are in period 1. Typically, you will want a new period for each "repetition" of an experiment. You can then store the data in a data frame which looks like:

1	period(wait_for="none")

`wait_for`
`name`	Optional name of the stage

ID	period	...
1	1	...
1	2	...
1	...	...
2	1	...
...	...	...

Iwait_for is interpreted just as in checkpoint.

If all relevant subjects are ready, the subject's period counter is incremented and the subject moves on.

An object of class Period

Other stages: NEXT, WAIT, stage; checkpoint; form_stage; program; text_stage; timed

expt <- experiment(N=4)
groups <- c("A", "A", "B", "B")
s1 <- text_stage(page="<html><body><form action=''>
     <input type='submit' value='Next'></form></body></html>")

# go ahead individually:
add_stage(expt, period(), s1)

# wait for everyone:
add_stage(expt, period("all"), s1)

# players 1 and 2 wait for each other, so do 3 and 4:
add_stage(expt, period(groups), s1)