Table of Contents
dataframe_merge_impl
A dataframe whose value is the merge of two dataframes, in the sense of the “merge”
command of “R”. The merge will be re-run as needed to reflect changes in the
source dataframes; evaluation is lazy.
set_x
some_dfm set_x x_dataframe
Indicate that the x argument of the R “merge” command should be eN["x_dataframe"].
The x component of the suffixes argument will be x_dataframe.
set_y
some_dfm set_y y_dataframe
Indicate that the y argument of the R “merge” command should be eN["y_dataframe"].
The y component of the suffixes argument will be y_dataframe.
set_x_key
some_dfn set_x_key key_col...
Indicate that the by.x argument of the R “merge” command should be key_col.
If this is a single column, the quotation marks are required, and if this is
a multiple column constraint, the c() is necessary.
set_y_key
some_dfn set_y_key key_col...
Indicate that the by.y argument of the R “merge” command should be key_col.
If this is a single column, the quotation marks are required, and if this is
a multiple column constraint, the c() is necessary.
