insert
From spatialEco v1.3-2
by Jeffrey S Evans
Insert a row or column into a data.frame
Inserts a new row or column into a data.frame at a specified location
Usage
insert(x, MARGIN = 1, value = NULL, idx, name = NULL)Arguments
- x
Existing data.frame
- MARGIN
Insert a 1 = row or 2 = column
- value
A vector of values equal to the length of MARGIN, if nothing specified values with be NA
- idx
Index position to insert row or column
- name
Name of new column (not used for rows, MARGIN=1)
Value
A data.frame with the new row or column inserted
Note
Where there are methods to easily add a row/column to the end or beginning of a data.frame, it is not straight forward to insert data at a specific location within the data.frame. This function allows for inserting a vector at a specific location eg., between columns or rows 1 and 2 where row/column 2 is moved to the 3rd position and a new vector of values is inserted into the 2nd position.
Examples
# NOT RUN {
d <- data.frame(ID=1:10, y=runif(10))
# insert row
insert(d, idx=2)
insert(d, value=c(20,0), idx=2)
# insert column
insert(d, MARGIN=2, idx=2)
insert(d, MARGIN = 2, value = rep(0,10), idx=2, name="x")
# }
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