keep information on the number of warnings
On Aug 4, 2014, at 9:24 AM, Luis Borda de Agua wrote:
Dear David Thank you very much for your reply. I?ve only seen it now. I tried length(warnings) and I got a strange result. When I used lw <- length(warnings) print(lw) I obtained lw=36 however, the number of warnings was 38 according to message to screen: "There were 38 warnings (use warnings() to see them)" (I?m listing the warning messages below.) Why should these numbers be different?
I have just disproven my initial hypothesis that I formed upon reading the R code of `warnings` that it had to do with the environment in which the warning was generated:
f <- function () { g(); warning ("outer warn") }
g <- function() { warning("inner warn") }
f()
Warning messages: 1: In g() : inner warn 2: In f() : outer warn
warnings()
Warning messages: 1: In g() : inner warn 2: In f() : outer warn So, I simply don't know (and you have provided no example to reproduce the issue). May I remind you to include context from earlier messages? Looking back at your first message the number 36 appears rather than 38. Perhaps the number of warning varies from run to run? You would wnat to compare the number from such a message to the output of length(warnings()) after the run rather than before it. ---------
I?m using R 3.1.0 in OS X 10.9.4 (Mavericks) I?m running a function Y that calls a function X which occasionally generates a warning. Say that I call the function X 1000 times, and out of these 1000 times I get the following message: "There were 36 warnings (use warnings() to see them)" How can I store the number 36 in a variable in function Y? In other words, how can I extract the information on the number of warnings generated?
length(warnings())
-------------------- David.
Thank you in advance, Lu?s
warnings()
Warning messages: 1: In stode(y, time, func, parms = parms, ...) : steady-state not reached 2: In stode(y, time, func, parms = parms, ...) : steady-state not reached 3: In stode(y, time, func, parms = parms, ...) : steady-state not reached 4: In stode(y, time, func, parms = parms, ...) : steady-state not reached 5: In stode(y, time, func, parms = parms, ...) : steady-state not reached 6: In stode(y, time, func, parms = parms, ...) : steady-state not reached 7: In stode(y, time, func, parms = parms, ...) : error during factorisation of matrix (dgefa); singular matrix 8: In stode(y, time, func, parms = parms, ...) : steady-state not reached 9: In stode(y, time, func, parms = parms, ...) : error during factorisation of matrix (dgefa); singular matrix 10: In stode(y, time, func, parms = parms, ...) : steady-state not reached 11: In stode(y, time, func, parms = parms, ...) : steady-state not reached 12: In stode(y, time, func, parms = parms, ...) : steady-state not reached 13: In stode(y, time, func, parms = parms, ...) : steady-state not reached 14: In stode(y, time, func, parms = parms, ...) : steady-state not reached 15: In stode(y, time, func, parms = parms, ...) : steady-state not reached 16: In stode(y, time, func, parms = parms, ...) : steady-state not reached 17: In stode(y, time, func, parms = parms, ...) : steady-state not reached 18: In stode(y, time, func, parms = parms, ...) : steady-state not reached 19: In stode(y, time, func, parms = parms, ...) : steady-state not reached 20: In stode(y, time, func, parms = parms, ...) : error during factorisation of matrix (dgefa); singular matrix 21: In stode(y, time, func, parms = parms, ...) : steady-state not reached 22: In stode(y, time, func, parms = parms, ...) : steady-state not reached 23: In stode(y, time, func, parms = parms, ...) : steady-state not reached 24: In stode(y, time, func, parms = parms, ...) : steady-state not reached 25: In stode(y, time, func, parms = parms, ...) : steady-state not reached 26: In stode(y, time, func, parms = parms, ...) : steady-state not reached 27: In stode(y, time, func, parms = parms, ...) : steady-state not reached 28: In stode(y, time, func, parms = parms, ...) : error during factorisation of matrix (dgefa); singular matrix 29: In stode(y, time, func, parms = parms, ...) : steady-state not reached 30: In stode(y, time, func, parms = parms, ...) : steady-state not reached 31: In stode(y, time, func, parms = parms, ...) : error during factorisation of matrix (dgefa); singular matrix 32: In stode(y, time, func, parms = parms, ...) : steady-state not reached 33: In stode(y, time, func, parms = parms, ...) : steady-state not reached 34: In stode(y, time, func, parms = parms, ...) : error during factorisation of matrix (dgefa); singular matrix 35: In stode(y, time, func, parms = parms, ...) : steady-state not reached 36: In stode(y, time, func, parms = parms, ...) : steady-state not reached 37: In stode(y, time, func, parms = parms, ...) : steady-state not reached 38: In stode(y, time, func, parms = parms, ...) : steady-state not reached
_______________________________ Lu?s Borda de ?gua Centro de Biologia Ambiental Faculdade de Ci?ncias Universidade de Lisboa Edif?cio C2, 6? Piso, Sala 2.6.04/07 Campo Grande 1749-016 Lisboa, Portugal Tel: +351 21 750 00 00 (ext: 22607) Fax: +351 21 750 00 28 [[alternative HTML version deleted]] ______________________________________________ R-help at r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
David Winsemius Alameda, CA, USA