file: 表示文件名,默认值为data ncolumns: 正整数,表示保存到文件中数据的列数,若是字符型数据,默认值为1;若是数值型数据,默认值为5 append: 逻辑变量,取值为TRUE时,表示在已有文件上添加数据;取值为FALSE(默认值)时,写入一个新文件 例如:在R中输入以下命令,观察其运行效果: A<-matrix(1:25,ncol =5) A...
In addition, you may want to have a look at the other articles on my website. Group data.table by Multiple Columns in R dplyr & plyr Error: Can’t rename columns that don’t exist. Summarize Multiple Columns of data.table by Group in R Remove Multiple Columns from data.table in R R...
dplyr Rename() – To Change Column Name How to Rename File in R? Using file.rename() How to Rename Multiple Columns in R? R– Rename All Dataframe Column Names Rename Columns With List in R How to Rename Column by Index Position in R? Tags:r-language...
# Change colname of one columncolnames(data)[colnames(data)=="Old_Name"]<-"New_Name"# Change colnames of all columnscolnames(data)<-c("New_Name1","New_Name2","New_Name3")# Change colnames of some columnscolnames(data)[colnames(data)%in%c("Old_Name1","Old_Name2")]<-c("New_Na...
Rename columns with the select() function You can actually use theselect()function fromdplyrto rename variables. Here's an example of how: df <- tibble( OriginalNumericVar = 1:3 ,Original.Character.Var = c('A', 'B', 'Z') )
# Last_Sepal.Length Last_Sepal.Width Last_Petal.Length Last_Petal.Width Last_Species ...