Hacktoberfest 2026 : les issues que les mainteneurs ont marquées pour octobre, ouvertes et accessibles aux débutants. Parcourir les issues Hacktoberfest

`fwb` transpiler: progress bar is one tick short when `simple = TRUE`

Ouverte
  • Quelque chose ne va pas ?
#3 0 commentaires 0 réactions 0 personnes assignées Voir sur GitHub

Personne n'a encore pris cette issue.

Évaluation

Difficulté
3/5
Temps estimé
1-2 jours
Accessibilité débutants
68/100
Type d'issue
Bug
Clarté
Plutôt claire
Activité
Active
Stack technique
r
Domaine
developer-experience, tooling

Piste de recherche

Inspectez le code généré dans template_fwb_outer et template_fwb_FUN, en commençant par la manière dont .progressr_skip_count est défini et décrémenté autour des appels à la statistique de fwb(). Vérifiez les mises à jour de la progression par rapport à la version de développement et à fwb 0.6.0, y compris le comportement dépendant de la version ; le travail est terminé lorsque la première réplication n’est pas ignorée et que les versions prises en charge produisent exactement R mises à jour lorsque le nombre de réplications est connu.

Rédigé par le modèle d'indexation à partir du texte de l'issue.

Description

The fwb transpiler's skip count assumes fwb() calls statistic on unit weights
twice when simple = TRUE. In the current fwb development version it calls it once,
whatever simple is, so the wrapper swallows the first real bootstrap replicate's update
and the bar finishes one tick short of R. This might cause an issue once the development version is on CRAN, so I wanted to let you know before I submitted it.

template_fwb_outer sets:

.progressr_skip_count <- if (.progressr_simple) 2L else 1L

and template_fwb_FUN decrements that on each call before it starts ticking. The count is
the number of times fwb() calls statistic before the R replicates begin.

In fwb 0.6.0 and earlier, simple = TRUE did call statistic twice on unit weights: the
second call existed only to detect whether statistic had a random component, which
determined whether the bootstrap weights could later be recovered. The development version
recovers the weights from recorded RNG streams instead, so that detection became
unnecessary and the second call was removed. There is now exactly one unit-weight call in
both cases.

An unconditional

.progressr_skip_count <- 1L

is correct for the development version and for every release after it.

It would break fwb 0.6.0, though: simple = TRUE there would leave the second
unit-weight call to be counted as a tick, giving R + 1 updates against a progressor with
R steps. So if you want to keep 0.6.0 working, this needs a version test:

.progressr_skip_count <- if (.progressr_simple &&
                             utils::packageVersion("fwb") <= "0.6.0") 2L else 1L

Note that an unconditional skip count also removes the need to infer simple,
which the template currently does by reproducing fwb()'s default rule:

.progressr_simple <- if (is.null(SIMPLE)) WTYPE != "multinom" else SIMPLE

With a constant skip count, SIMPLE and WTYPE are not needed at all.

Related, separate: R is not always the number of replicates

Worth flagging while you're in this code, since it also makes .progressr_steps wrong.

The development version adds an exhaustive multinomial bootstrap: because there are only
n^n distinct multinomial resamples of n units, when R reaches that many fwb() uses
each exactly once and reduces R to that number. The transpiler takes steps from the
R in the call, so the bar stalls partway.

Only reachable for very small n (n = 6 already has 46656 resamples, so with the default
R = 999 nothing above n = 4 is affected), and fwb() emits a message saying it has done
this. There may be nothing worth doing about it since the number of replicates isn't knowable
from the call alone, so a transpiler arguably cannot get this right in general. Recording it
rather than proposing a fix. Sorry to add this complication.

(Note: I used Claude Code to help with these edits and this issue.)

Langage dominant
R
Étoiles
5
Forks
0
Aucune PR mergée en 30 j

Préparer son environnement

Par où commencer

  1. Lisez l'issue en entier, puis le guide de contribution du projet.
  2. Signalez en commentaire que vous la prenez — cela évite que deux personnes fassent le même travail.
  3. Forkez le dépôt et travaillez sur une branche.
  4. Ouvrez une pull request qui référence le numéro de l'issue.

Autres issues de futureverse/progressify

Toutes les issues de futureverse/progressify

Issues similaires

Plus d'issues R

Recevez les nouvelles issues par e-mail

Un résumé court des issues GitHub adaptées aux débutants.