在R语言中,确实没有名为column_to_rownames的标准函数。这可能是一个误解或者是对某个特定包中函数的错误记忆。在R语言中,尤其是使用tibble或dplyr包处理数据时,我们通常使用tibble::rownames_to_column函数来将行名转换为列向量,或者使用row.names<-函数来直接设置行名。 以下是如何使用这些替代方法将某一列...
install.packages("dplyr")# Install & load dplyrlibrary("dplyr") Now, we can use the rownames_to_column function to add the row names of our data as variable: data2<-data# Duplicate example datadata2<-tibble::rownames_to_column(data2,"row_names")# Apply rownames_to_columndata2# Pri...
可以考虑使用其他包如dplyr中的函数来提高性能。 代码语言:txt 复制 library(dplyr) df %>% rowwise() %>% mutate(max_col = names(which.max(c_across(A:C))) 通过这些方法,你可以有效地在R中创建一个新列来保存每行最大值的列名,并解决可能遇到的问题。相关...
当你使用column_to_rownames时，它变成了一个 Dataframe ，因为tibles不能有行名。
Also, if the two data frames have identical column names, you can join multiple columns with the following syntax. library(dplyr) df3 <- left_join(df1, df2, by=c('team', 'position')) The post How to Join Data Frames for different column names in R appeared first on Data Science Tut...
当你使用column_to_rownames时，它变成了一个 Dataframe ，因为tibles不能有行名。
We recently saw a great recurring R question: “how do you use one column to choose a different value for each row?” That is: how do you use a column as an index? Please read on for some idiomatic base R, data.table, and dplyr solutions. Let’s say we have some example data: ...
We will be using mtcars data to depict, dropping of the variable Drop by column names in Dplyr R: select() function along with minus which is used to drop the columns by name 1 2 3 4 5 library(dplyr) mydata <- mtcars # Drop the columns of the dataframe ...
sample_n & sample_frac R Functions of dplyr Package The R Programming Language In this R tutorial you learned how topermute or randomize the row and column ordering of a data frame. In case you have any additional questions, let me know in the comments section. ...
dplyr::select_all() can be used to reformat column names. type, and you can now create compound selections that were previously When I use the spread () function (from the " tidyr " package), these become column names containing spaces and commas. First, we name the new column we ...