A data frame with 1636 rows and 10 variables:
- seqno
sequential number
- market
"kospi" or "kosdaq"
- sales
sales in Bil. KRW
- profit
profit in Bil. KRW
- sector
sector (character)
- emp
number of employees
- avgsal
average salary in Mil. KRW
- avgtenure
average years of tenure
- kospi
=1 if KOSPI
- kosdaq
=1 if KOSDAQ