I'm doing some analysis on Jackie Robinson's career. I'm using both Retrosheet and Lahman's database in order get his performance per game and overall stats respectively.
The thing is that I see some discrepancies between these two data sources. Retrosheet game event files show that Robinson was CS 46 times between 1947 and 1950. However, Lahman database indicate that he was never caught stealing bases between these years.
Anyone knows which source has the correct information and why?
Retrosheet:
## year.file SB CS SB.P
## 1 all1947.csv 29 11 0.725
## 2 all1948.csv 22 14 0.611
## 3 all1949.csv 37 16 0.698
## 4 all1950.csv 12 5 0.706
## 5 all1951.csv 25 8 0.758
## 6 all1952.csv 24 7 0.774
## 7 all1953.csv 17 4 0.810
## 8 all1954.csv 7 3 0.700
## 9 all1955.csv 12 3 0.800
## 10 all1956.csv 12 6 0.667
Lahman:
## Source: local data frame [10 x 4]
## Groups: yearID
##
## yearID SB CS SB.P
## 1 1947 29 0 1.000
## 2 1948 22 0 1.000
## 3 1949 37 0 1.000
## 4 1950 12 0 1.000
## 5 1951 25 8 0.758
## 6 1952 24 7 0.774
## 7 1953 17 4 0.810
## 8 1954 7 3 0.700
## 9 1955 12 3 0.800
## 10 1956 12 5 0.706
