starwars | 星球大战 css3d 效果模仿 | Style Language library

I want to create a selectInput() within a modalDialog(). And also create a reactive dataset based on that selectInput(). However i get the error message:

I have a table of mostly categorical values and want to only keep rows that have the most common values in a particular column. I'm trying to use slice_max() but it's not working as I expect. I did see older suggestions for how to do this in base R or using the deprecated top_n(), but the top_n() documentation says to use slice_max instead and I can't find much detail about how slice_max works.

I'll use the starwars dataset as my example. The two most common homeworlds are Naboo, with 11 occurrences, and Tatooine, with 10. So I want the code to say "show me all the rows with the two most common homeworlds", and I expect that to give me a 21 row tibble where the homeworlds are all Naboo and Tatooine.

I added a column I called "worldcount" that simply counts the occurrences of the homeworld so I can easily see how many times each homeworld occurs. I also only selected a few columns to simplify things:

The following function behaves as desired: several variables can be passed to group_by without the need to put them into alist() or dplyr::vars:

I am currently trying to find a short & tidy way to unnest a nested tibble with 2 grouping variables and a tibble/df as data for each observation into a tibble having only one of the grouping variables and the respective data in a df (or tibble). I will illustrate my sample by using the starwars dataset provided by tidyverse and show the 3 solutions I came up with so far.

I'm using blogdown and the lxndrblz/anatole theme to create a blog. The blog should have usual syntax highlighting, which should be supported.

When I create a new post in markdown (not Rmarkdown!) like the following, it works as expected.

Eg index.md (not Rmd!)

I would like to select an R code block via a shortcut.

At the moment I am using CTRL+L to select the current line and CTRL+ALT+UP/DOWN to expand the selection. This, however, is cumbersome.

Is there any way to tell VS Code to select everything in a paragraph?

Example:

I have a home page where I have 3 movies(passed from store) each of these movies has an add to fav page button. So what I want to do is when I click on the add movie to fav button and I go to my fav page the movie should be there. I am new to Vue so sorry if my code is not the best. even document recommendations would be appreciated!

home page:

I would like to rewrite the following regular expression in r by using [:alnum:], that in my understanding should do the same thing:

starwars %>% mutate(name = str_replace_all(name, "[^a-zA-Z\\d\\s:\u00C0-\u00FF]", ""))

But the behaviour I get is not at all what I expected:

starwars %>% mutate(name = str_replace_all(name, "[^:alnum:]", ""))

By the way, I need to remove the underscores _ and the all the spaces.

Assume that you have a dataset like starwars. Also assume that you have 2 columns one numeric with 20 NA values and the other with species (human,Droid,machine,etc).

How to convert using pipes, only the na values that belong to category humans to the mean of the heights?

If we convert it to the total it will be wrong as machines may be a lit smaller or higher and as a result we will have some strange values as for the height of the humans.

P.s. I know how to do it using replace or ifelse, but how to add the categorization