If the JSON configuration for allowed runtime reflection contains a class that is not on the class path, the tool tells me to verify that my configuration matches the schema:

error: Error parsing reflection configuration in /home/dsyer/dev/scratch/graal/reflect.json:
Class no.such.Object not found
Verify that the configuration matches the schema described in the -H:PrintFlags=+ output fo

I tried to use latex in dash, but it is not working.
It seems that the mathjax javacript library is not loaded.

One unit test in the R package is currently broken. Steps to reproduce on Mac

export CXX=/usr/local/bin/g++-8 CC=/usr/local/bin/gcc-8
Rscript build_r.R
cd R-package/tests
Rscript testthat.R

This results in the following error at the ends of the logs

[LightGBM] [Info] Saving data to binary file /var/folders/xq/wktq4zdx4jd3qdpk34d28m940000gn/T//RtmpiY1DzV/lgb.Dataset_1555

This issue is related to issue #957 by @scasault
I tried to speed up the calculation of the prophet model. Since I do not care about uncertainties, disabling their calculation is the easiest way to speed up prophet for me.
Setting the default parameter uncertainty_samples=1000 to uncertainty_samples=0 reduces the calculation time from

8.04 s ± 310 ms per loop (mean ± std. dev. of 7 r

Would be great to have new option in Pool. Just like cat_features list of numbers or column names.

I assume they're points?

hi,
the documentation of shiny::Progress says

initialize(session, min = 0, max = 1)
Creates a new progress panel (but does not display it).

Nevertheless it seems as if already the simple creation of a progress object (p<- Progress$new()) shows the Notification "message" without calling p$set(...) first.

here a very minimal example showing an undesired "message" notification.

``

The manual pages for the top_n function do not include any examples with date values and trying to pick out the earliest/latest of a period can be confusing. For example, I worked in insurance so we had eligibility periods that ran from startdate to enddate.

To get the earliest startdate, as a prior SQL programmer, I would expect to use an ascending list and the top item on the list is the

From Slack:

Piping to papermill is on master 🤤
cat original.ipynb | papermill > result.ipynb

The cheatsheet graphic linked from the https://github.com/r-lib/devtools/blob/master/README.md is wonderful! But it still references devtools::create, which I understand has been replaced by usethis::create_package(). Time for an update?

Is there a way to choose which files are counted? How do we include/exclude JavaScript?

In the table given in https://mlr-org.github.io/mlr/articles/tutorial/cost_sensitive_classif.html#binary-classification-problems
true are rows and pred are columns, however, the cost matrix at the top is defined as "The costs c(k,l) for predicting class k if the true label is l", so pred are rows and true are columns.

This causes some confusion in the example for binary classification.

In

Hi,
Apologies if this is off topic. I'm struggling to find information about this. Is there any equivalent of ipywidgets allowing basic feedback to R? I'm aware of the likes of plotly and htmlwidgets, but have not been able to identify any mechanism for providing data back to R. There are some comments around the release of ipywidgets 5.0 claiming that recent refactoring is designed to make writi

This would be a good TDD project for someone who has significant rvest experience, and some teaching experience.