[R] debug only top level function

Duncan Murdoch murdoch@dunc@n @end|ng |rom gm@||@com
Thu Jun 6 11:10:40 CEST 2019

On 06/06/2019 4:55 a.m., PIKAL Petr wrote:
> Dear all
> I have a question about debug function. I did not use it for long time but my vague memory tell me, that when I used  debug(myfunction) in past, only myfunction was debugged and browser ignored any embedded function.
> example (simple)
> fff <- function(x) mean(x, na.rm=T)
> when I issue
>> debug(fff)
>> fff(1:10)
> debugging in: fff(1:10)
> debug at #1: mean(x, na.rm = T)
> Browse[2]>
> debugging in: mean(x, na.rm = T)
> debug: UseMethod("mean")
> Browse[3]>
> debugging in: mean.default(x, na.rm = T)
> ...
> it starts debugging mean function. I understand that it is indicated by Browse[n] but it could be quite messy if I have many embedded functions and difficult to follow.
> Can I persuade debug function not to bother with embedded functions (e.g. mean, median, mad, ...) and debug only my top level code?

There are several commands available.  Type "help" to see them:

n          next
s          step into
f          finish
c or cont  continue
Q          quit
where      show stack
help       show help
<expr>     evaluate expression

You want "n", and are getting "s".  I believe if you hit Enter without 
choosing one, it will do the same as the previous time, so you've 
probably used "s" sometime in the past.

Duncan Murdoch

> Best regards
> Petr
>> sessionInfo()
> R Under development (unstable) (2018-03-07 r74369)
> Platform: x86_64-w64-mingw32/x64 (64-bit)
> Running under: Windows 10 x64 (build 17763)
> Matrix products: default
> locale:
> [1] LC_COLLATE=Czech_Czechia.1250  LC_CTYPE=Czech_Czechia.1250
> [3] LC_MONETARY=Czech_Czechia.1250 LC_NUMERIC=C
> [5] LC_TIME=Czech_Czechia.1250
> attached base packages:
> [1] stats     datasets  utils     grDevices graphics  methods   base
> other attached packages:
> [1] MASS_7.3-49     readxl_1.0.0    lattice_0.20-35 fun_0.1
> loaded via a namespace (and not attached):
> [1] Rcpp_0.12.16     cellranger_1.1.0 grid_3.5.0       plyr_1.8.4
>   [5] gtable_0.2.0     scales_0.5.0     ggplot2_2.2.1    pillar_1.2.1
>   [9] rlang_0.2.0      lazyeval_0.2.1   rpart_4.1-13     tools_3.5.0
> [13] munsell_0.4.3    compiler_3.5.0   colorspace_1.3-2 tibble_1.4.2
> Osobn? ?daje: Informace o zpracov?n? a ochran? osobn?ch ?daj? obchodn?ch partner? PRECHEZA a.s. jsou zve?ejn?ny na: https://www.precheza.cz/zasady-ochrany-osobnich-udaju/ | Information about processing and protection of business partner's personal data are available on website: https://www.precheza.cz/en/personal-data-protection-principles/
> D?v?rnost: Tento e-mail a jak?koliv k n?mu p?ipojen? dokumenty jsou d?v?rn? a podl?haj? tomuto pr?vn? z?vazn?mu prohl??en? o vylou?en? odpov?dnosti: https://www.precheza.cz/01-dovetek/ | This email and any documents attached to it may be confidential and are subject to the legally binding disclaimer: https://www.precheza.cz/en/01-disclaimer/
> 	[[alternative HTML version deleted]]
> ______________________________________________
> R-help using r-project.org mailing list -- To UNSUBSCRIBE and more, see
> 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.

More information about the R-help mailing list