working copy of module1 for intro to r now in Rmd
Fixed swirlfancy #29, menu selection - no error detection.
a few more updates to markdown version of mod1 of intro to R
In user (i.e., default) mode swirl looks for courses etc. in package directory. In developer (i.e., dev) mode, it looks for courses in the project directory.
Empty AnswerTests column allowed in dev mode, but not in user (default) mode.
Question without tests allowed in dev mode only, stops with error otherwise.
minor bug fix; typo
merge bill's changes before push
Removed data/cars.csv and dependencies in code.
Fixed bug in processing result of inProgressMenu: character() is an empty character array; "" is a character array of length 1!
Merge remote-tracking branch 'swirldev/master'
Loading instructions (present, waitUser, testResponse) relegated to a method to allow for easy experimentation with different instruction sets in the future.
Special commands play() and nxt() implemented.
Implemented a skip() feature which always exposes the correct answer to the user. Thus a user can skip() through an entire module.
updated mod1 and mod2 in Rmd format for intro to R course
more udpates to intro to R content in Rmd format
Added runTest.expr_identical with keyphrase "expr_identical=<correct expression>". Fixed minor bug in play()/skip() interaction.
Merge remote-tracking branch 'swirldev/master'
Merge remote-tracking branch 'swirldev/master'