Tutorial 4 - Lesson 2: Randomization test, What is a p-value?, Calculating the p-values - problem with code exercise

[IZE85]

In "Tutorial 4 - Lesson 2: Randomization test", in the subsection "What is a p-value?", under "Calculating the p-values", there is a code exercise, where you have to use the "visualize()" and "get_p_value" functions.

Unfortunately, i am not able to solve this exercise, as the console always returns me "argument is of length zero".

I was not sure whether this problem is due to my inability to solve the exercise or some other issues. Could you help me clarify, whether my coding is wrong?

Visualize and calculate the p-value for the original dataset

gender_discrimination_perm %>%
visualize(obs_stat = diff_orig, direction = "greater")

gender_discrimination_perm %>%
get_p_value(obs_stat = diff_orig, direction = "greater")

Visualize and calculate the p-value for the small dataset

gender_discrimination_small_perm %>%
visualize(obs_stat = diff_orig_small, direction = "greater")

gender_discrimination_small_perm %>%
get_p_value(obs_stat = diff_orig_small, direction = "greater")

Visualize and calculate the p-value for the big dataset

gender_discrimination_big_perm %>%
visualize(obs_stat = diff_orig_big, direction = "greater")

gender_discrimination_big_perm %>%
get_p_value(obs_stat = diff_orig_big, direction = "greater")

[IZE85]

I assume there is an issue with the "visualize()" and the "get_p_value()" functions, as also in "Tutorial 4 - Lesson 3: Errors in hypothesis testing" in the subsection "Example: opportunity cost" we have to use these functions and the console still returns me "argument is of length zero"

[mamcisaac]

This code all works for me.

[npaterno]

Unable to duplicate the error on Mac, Windows or Linux.