R/modify_columns.R
Loading the trainingnames.csv file into R. For the purpose of this tutorial, I created a sample.csv dataset that you can use to practice merging two columns in R. The file can be downloaded here: trainingnames.csv. Hindi movies on amazon prime 2020. Now, let's go ahead and load it into R using the following command. An inner join in R is a merge operation between two data frames where the merge returns all of the rows that match from both tables. You are going to need to specify a common key for R use to use to match the data elements. Merge Data Frames by Two ID Columns in R (2 Examples) In this article you'll learn how to combine multiple data frames based on more than one ID column in R. The article looks as follows: 1) Creation of Example Data. 2) Example 1: Combine Data by Two ID Columns Using merge Function.
This function takes input from two or more columns and allows the contents tobe merged them into a single column, using a pattern that specifies theformatting. We can specify which columns to merge together in the columns
argument. The string-combining pattern is given in the pattern
argument.The first column in the columns
series operates as the target column (i.e.,will undergo mutation) whereas all following columns
will be untouched.There is the option to hide the non-target columns (i.e., second andsubsequent columns given in columns
). My address and zip code.
Arguments
data | A table object that is created using the |
---|---|
columns | The columns that will participate in the merging process. Thefirst column name provided will be the target column (i.e., undergomutation) and the other columns will serve to provide input. |
hide_columns | Any column names provided here will have their statechanged to |
pattern | A formatting pattern that specifies the arrangement of the |
How To Merge Data In Rstudio
Value
An object of class gt_tbl
.
Merge Data In Rows
Details
There are three other column-merging functions that offer specializedbehavior that is optimized for common table tasks: cols_merge_range()
,cols_merge_uncert()
, and cols_merge_n_pct()
. These functions operatesimilarly, where the non-target columns can be optionally hidden from theoutput table through the autohide
option.
Figures
Function ID
4-12
How To Merge Data In Rstudio
Value
An object of class gt_tbl
.
Merge Data In Rows
Details
There are three other column-merging functions that offer specializedbehavior that is optimized for common table tasks: cols_merge_range()
,cols_merge_uncert()
, and cols_merge_n_pct()
. These functions operatesimilarly, where the non-target columns can be optionally hidden from theoutput table through the autohide
option.
Figures
Function ID
4-12
See also
Other Modify Columns: cols_align()
,cols_hide()
,cols_label()
,cols_merge_n_pct()
,cols_merge_range()
,cols_merge_uncert()
,cols_move_to_end()
,cols_move_to_start()
,cols_move()
,cols_unhide()
,cols_width()