On Tue, 16 May 2017, Serguei Sokol wrote:
Le 15/05/2017 à 19:41, luke-tier...@uiowa.edu a écrit :
This is getting pretty convoluted.
The current behavior is consistent with the description at the top of
the help page -- it does not promise to stop evaluation once the first
non-TRUE is found.
Hm... we can read in the man page :
‘stopifnot(A, B)’ is conceptually equivalent to
{ if(any(is.na(A)) || !all(A)) stop(...);
if(any(is.na(B)) || !all(B)) stop(...) }
and this behavior does promise to stop at first non-TRUE value
without evaluation of the rest of conditions.
Yes: that is why I explicitly referenced the description at the top of
the page.
Changing the 'conceptually equivalent' bit to reflect what is
happening is easy. The changes being discussed, and their long term
maintenance, ar not.
Best,
luke
Sergueï.
--
Luke Tierney
Ralph E. Wareham Professor of Mathematical Sciences
University of Iowa Phone: 319-335-3386
Department of Statistics and Fax: 319-335-3017
Actuarial Science
241 Schaeffer Hall email: luke-tier...@uiowa.edu
Iowa City, IA 52242 WWW: http://www.stat.uiowa.edu
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