NEWS

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zTree 2021-11-03

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

zTree 2019-02-04

plyr no longer imported (to avoid conflict with dplyr)

zTree 2018-12-30

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

zTree 2017-01-05

load options correctly

zTree 2016-12-19

CRAN requirements

CRAN requirements

zTree 2016-12-18

documentation

zTree 2016-12-17

added tables=NULL to read all tables in zTreeTables

zTree 2016-09-01

example to read .sbj-files was misleading

zTree 2016-03-30

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

added "zTree.encoding" option

zTree 2015-04-16

handles non-z-Tree files more gracefully

zTree 2014-10-26

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

zTree 2013-05-14

added "zTree.silent" option

zTree 2013-05-10

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

zTree 2012-12-19

corrected merging of sbj files

zTree 2012-11-23

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

zTree 2012-03-19

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

zTree 2011-03-21

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

zTree 2009-07-11

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

zTree 2008-07-27

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