也可以覆盖现有变量。使用提供的示例数据库mtcars的缩短版本，如果您要求R解释代码：
"all necessary information on the used librarys, the R version, and the OS it is run on, ...
我们可以使用cur_column()并修改它（对于尾随的"B"）以引用每个变量的两个版本。
"all necessary information on the used librarys, the R version, and the OS it is run on, ...
mutate_at() function in R creates new columns for the specified columns here in our example. mutate_at() Function get the min_rank() of sepal length and sepal width . 1 2 3 4 5 6 7 library(dplyr) mydata2 <-iris # mutate_at() function for creating new variable to t...
For example, google_translate's hotkey is configured as Ctrl+T, and when you press it Mutate will type 'tr' and the selected text. NOTE:If you want use key 'super' as your hotkey, type Meta will help. Custom Scripts When you type "tr work" in the line editor, Mutate will ...
This is only one usecase of theVectorize()function. It can come in handy whenever you need to vectorize a non-vectorized function. For example, it seems that thenrow()function is not vectorized, because if I try to create a list with two dataframes in it and get the number of rows,...
For the first item, it will show "工作" in the first row, and "work" in the second row, if you don't Specify icon's address, it will show the script's original icon. About command: command can be shell command, it means if you enter this item it will do this shell command.Exc...
String manipulation:stringrpackage functions likestr_extract(),str_replace(), etc. Group-wise mutations usinggroup_byin combination withmutate. Here's an example demonstrating some of these advanced features: new_df <- df %>% group_by(category) %>% mutate(total_sales = sum(sales), sales_...
但是当您有多个条件时，case_when将更具可读性。在mutate中：