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→NHL Data
===NHL Data===
The NHL data was retrieved from NHL.com using a custom webcrawler. The data covers the years 1997-present, except for the 2004-2005 season (which was a lockout). Data was retrieved seperately for skaters and goalies. We have data on all 2870 2865 NHL players that have stats recorded on NHL.com in the final dataset.
====Joining to CapGeek====
NHL.com does not provide unique player identifiers. These were created using player names and dates of birth. Players were matched to CapGeek using their names, and when names were non-unique matches were established manually by checking birth dates, teams and positions in both sources. Birth-date - player-name dyads were found to be unique. For a small percentage of players (approximately 45/1459) their names were recorded differently in each source. Fuzzy-matching software provided potential candidate matches and all matches were checked by hand.
Of the 2870 2865 NHL players with statistics, we have CapGeek contract records for 1459 1455 (51%). Part of the discrepancy is due to retirement. 442 players played their last game before 2001 and do not have CapGeek records. This leaves 969 968 (34%) of the NHL players that do not have contracts in CapGeek for some other reason - most likely that CapGeek's coverage is incomplete.
==Variables==
