zTreeTables: Read '.xls' files generated by 'z-Tree' into R
In zTree: Functions to Import Data from 'z-Tree' into R

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

View source: R/zTreeTables.R

Read '.xls' files which are written by the Microsoft Windows program 'z-Tree'. The latter is a software for developing and carrying out economic experiments (see <http://www.ztree.uzh.ch/> for more information).

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zTreeTables(files, tables = c("globals", "subjects"), sep = "\t",
	zTree.silent=getOption("zTree.silent"),
	zTree.encoding=getOption("zTree.encoding"),ignore.errors=FALSE)

`files`	a vector of 'z-Tree' (xls-) filenames.
`tables`	a vector of table names. If you leave this empty, globals and subjects will be read. If you set tables=NULL, all tables will be read.
`sep`	Field separator. 'z-Tree' uses "\t" as a separator. If you have a manipulated file, you might need to change the separator.
`zTree.silent`	If `TRUE`, generates less verbose output.
`zTree.encoding`	zTree writes text files and seems to use latin1 (windows-1252) encoding for these files.
`ignore.errors`	Usually, `zTreeTables` stops with an error when it detects a wrong encoding or a manipulated file. With `ignore.errors=TRUE` it only generates a warning.

A list of all tables (e.g. "globals", "subjects", etc.)

Oliver Kirchkamp

Urs Fischbacher. "z-Tree: Zurich Toolbox for Ready-made Economic Experiments." Experimental Economics (2) 171-178, 2007.

See also zTreeSbj

## Not run: 
zTT <- zTreeTables(c("080712_1412.xls","080712_1818.xls"))
with(zTT$subjects, table(Treatment,Period))
To read all tables from all sessions in directories below the current one:
sessions<-list.files(".","[0-9]{6}_[0-9]{4}.xls",recursive=TRUE)
zTT<-zTreeTables(sessions,tables=NULL)

## End(Not run)