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zTree 1.0.7, 2021-11-03:

changes due to z-Tree 5… (different xls format, table names contain linebreaks…)

zTree 1.0.6, 2019-02-04:

plyr no longer imported (to avoid conflict with dplyr)

zTree 1.0.5, 2018-12-30:

more compact warnings for manipulated files, if getOption(zTree.encoding) is NULL, then getOption(encoding) is used.

zTree 1.0.4, 2017-01-05:

load options correctly

zTree 1.0.3, 2016-12-19:

CRAN requirements

zTree 1.0.2, 2016-12-19:

CRAN requirements

zTree 1.0.1, 2016-12-18:

documentation

zTree 1.0, 2016-12-17:

added tables=NULL to read all tables in zTreeTables

2016-09-01:

example to read .sbj-files was misleading

2016-03-30:

robust against missing entries in .sbj-files (thanks to Michaela Fitzová for the hint)

2016-03-30:

added “zTree.encoding” option

2015-04-16:

handles non-z-Tree files more gracefully

2014-10-26:

added remark regarding locale (thanks to Igor Asanov for the hint).

2013-05-14:

added “zTree.silent” option

2013-05-10:

made code robust against non-existent tables, caught (predictable) warnings

2012-12-19:

corrected merging of sbj files

2012-11-23:

made merging of tables faster (at the cost of needing the plyr library)

2012-03-19:

fixed encoding to Latin1 (this becomes an issue once chats are saved in tables)

2011-03-21:

fixed problem where the first table was ignored in zTreeSbj (thanks to David Hugh-Jones for the hint)

2009-07-11:

mainly bug-fixes (during 2009 IMPRS Uncertainty Summerschool in Jena)

2008-07-27:

First public version released on the occasion of IMPRS Uncertainty Summerschool in Jena.

These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.