explain() breaks the compliation of .Rmd to pdf with LaTeX

[hbaniecki]

OS: Windows 10. Compilation to HTML works fine.

Reproducible example (use in test.rmd):

library("DALEX")
library("ranger")
library("modelStudio")

# fit a model
model <- ranger(score ~., data = happiness_train)

# create an explainer for the model    
explainer <- explain(model,
                     data = happiness_test,
                     y = happiness_test$score,
                     label = "Random Forest")

Outcome:

Fix: use verbose = FALSE.

library("DALEX")
library("ranger")
library("modelStudio")

# fit a model
model <- ranger(score ~., data = happiness_train)

# create an explainer for the model    
explainer <- explain(model,
                     data = happiness_test,
                     y = happiness_test$score,
                     label = "Random Forest",
                     verbose = FALSE)

We should find the symbol in verbose output that breaks this.

[piotrpiatyszek]

1b in hex = 33 in oct

The problem is with escape character, that is used to create colors (https://en.wikipedia.org/wiki/ANSI_escape_code).
We use it there

color_codes <- list(yellow_start = "\033[33m", yellow_end = "\033[39m",
                    red_start = "\033[31m", red_end = "\033[39m",
                    green_start = "\033[32m", green_end = "\033[39m")

[pbiecek]

Colors are not rendered correctly through Rmd->html engine.
One option is to set verbose = FALSE
Second and less invasive is to set colorize = FALSE in the explain() function

[hbaniecki]

Potentially set colorize = !isTRUE(getOption('knitr.in.progress')) as a new default.

[pbiecek]

@hbaniecki please check if b4889ed solves this issue

[pbiecek]

version bumped to 2.4.0 due to the change in defaults

[hbaniecki]

Thanks, it works well.