download_data_wrds_ccm_links {tidyfinance} | R Documentation |
This function downloads data from the WRDS CRSP/Compustat Merged (CCM) links
database. It allows users to specify the type of links (linktype
), the
primacy of the link (linkprim
), and whether to use flagged links
(usedflag
).
download_data_wrds_ccm_links(
linktype = c("LU", "LC"),
linkprim = c("P", "C"),
usedflag = 1
)
linktype |
A character vector indicating the type of link to download.
The default is |
linkprim |
A character vector indicating the primacy of the link.
Default is |
usedflag |
An integer indicating whether to use flagged links. The
default is |
A data frame with the columns permno
, gvkey
, linkdt
, and
linkenddt
, where linkenddt
is the end date of the link, and missing end
dates are replaced with today's date.
ccm_links <- download_data_wrds_ccm_links(linktype = "LU", linkprim = "P", usedflag = 1)