erp.fun.loop: Calculate several ERP measures
In erpR: Event-Related Potentials (ERP) Analysis, Graphics and Utility Functions

Description Usage Arguments Details Value Author(s) See Also Examples

This functions allow to quickly perform loops over several objects with different base or different time windows, to calculate an erp measure (i.e., erp.mean, erp.peak, or erp.latency)

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erp.fun.loop(bases=NULL, numbers=NULL, erp.fun=NULL, intervals=NULL, 
conditions.names=NULL, erplist=NULL, startmsec=NULL, endmsec=NULL, 
others=NULL, intervals.var=TRUE, ...)

`bases`	a string indicating the beginning of the name of the object the ERP data (stored in an `erplist`.
`numbers`	the numbers (indicating the subjects) of the files to be imported.
`erp.fun`	the name of the function to be used (no quotes, e.g, `erp.fun = erp.mean`)
`intervals`	A list of pair of values, indicating the beginning and end of time windows on which to apply the `erp.fun`. (e.g., `list(c(100, 200), c(300,500))`)
`conditions.names`	A vector of characters (same length of `bases`) that will be the name of the condition in the resulting object.
`erplist`	If an erplist is specified, then the imported files will be added to this erplist.
`startmsec`	the start time (in ms) of the ERP data frames. It can be a negative value, indicating the baseline time frame.
`endmsec`	the end time (in ms) of the ERP data frames.
`others`	the names of other variables to be included in the returned data frame. Ignored if the format is "wide".
`intervals.var`	logical. Should a variable indicating intervals (with characters) should be included?
`...`	further arguments to be passed to the `erp.fun` specified.

This function calculates an ERP measure on several ERP data frames, stored in a single erplist. See the help for the used erp.fun (i.e.,erp.mean, erp.peak, or erp.latency) for further details.

An ERP data.frame with the result of the call to the erp.fun

Giorgio Arcara

erp.mean, erp.peak, erp.latency

data(erplistExample)

datall=erp.fun.loop(bases=c("Exp1_word_subj", "Exp1_nonword_subj"), numbers=1:20, 
erp.fun=erp.mean, conditions.names=c("word", "nonword"), erplist=erplistExample, 
intervals.var=TRUE, intervals=list(c(100, 200), c(300, 500)))