On 06/06/2019 6:00 a.m., PIKAL Petr wrote:
Thanks Duncan.
I think you found it. I have an object called s within my function. I wanted to check it,
so I hit "s". This did not bring the object but instead it change behaviour of
debug function. I did not find this in help pages nor in R exts or R intro manual. Maybe
it would be worth considering to add something about it to debug help page.
It's in the ?browser help page, which is linked from ?debug.
Duncan Murdoch
Best regards
Petr
-----Original Message-----
From: Duncan Murdoch <murdoch.dun...@gmail.com>
Sent: Thursday, June 6, 2019 11:11 AM
To: PIKAL Petr <petr.pi...@precheza.cz>; r-help@r-project.org
Subject: Re: [R] debug only top level function
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
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