colnames(df)[ colnames(df) %in% c('aaa', 'bbb') ] <- c('a', 'b') 综上可以看出,右侧为列的新名称字符串或者向量,左侧的重点在于找到需要重命名的列的下标。 参考:https://statisticsglobe.com/rename-column-name-in-r-data-frame/
# 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...
ex_dt_2<-data.table::copy(ex_dt)# Duplicate the datacolnames(ex_dt_2)# Print column names# [1] "a" "b" "c" "d"colnames(ex_dt_2)[2]<-"B_rename"# Rename second column nameex_dt_2 In Table 2 you can see that we have created a second data.table with a new column name ...
placement of a representation of a resource on said bar using said user input means results in predetermined data being displayed in said control frame and said representations of said resources being disposed relative to one another in ... MT Mackay,RJ Berger,R Duffy,... - US 被引量: 722...
FrameName FrameProperties FrameScrollbarVisibilityValues Frameset FramesetSplitbar FrameSize 库 GlossaryDocument GridAfter GridBefore GridColumn GridSpan GrowAutofit GutterAtTop GutterOnRight 标头 HeaderFooterReferenceType HeaderFooterType HeaderFooterValues HeaderReference HeaderShapeDefaults HeaderSour...
Best method in c# to check if a column of a database table contains data Best method to remove duplicate users after To / CC / Bcc have been set Best way to handle a bool return function with throwing a new exception in C# Bind CheckBoxList with selected Items bind data from sql da...
Changed record name “Tuple” to “UserTuple”. glyf Added remarks regarding glyph bounding rectangles in variable fonts. Clarified interpretation of X_SHORT_VECTOR and Y_SHORT_VECTOR flags. Clarified interpretation of the ARGS_ARE_XY_VALUES and ROUND_XY_TO_GRID component flags, and other aspects...
Click and drag across the column headings for the columns that you want to change. Column separator Column headings Note: If you have to change the width of only one column, you don't have to select it first. Point to the separator on the right side of any...
2.1.847 Part 4 Section 3.11.1.21, rrc (Revision Row Column Insert Delete) 2.1.848 Part 4 Section 3.11.1.22, rsnm (Revision Sheet Name) 2.1.849 Part 4 Section 3.11.1.23, sheetId (Sheet Id) 2.1.850 Part 4 Section 3.11.1.24, sheetIdMap (Sheet Id Map) 2.1.851 Part 4 Section ...
we model a change from a plateau with strong positive AR(2) residuals to a slope with medium AR(1) residuals. These data were simulated withmcp(see simulation code:mcp_example("ar")$call) and the generating values are in thesimcolumn. You can also do regression on the AR coefficients ...