Stata中面板数据的表示 company year invest mva⊥ue 1951 755.9 4833 111122 1952 891.2 49249 1953 13044 62417 1954 1486.7 5593.6 1951 588.2 22895 1952 645.5 2159.4 1953 641 20313 1954 4593 2115.5 1951 135.2 1819.4 1952 1573 2079.7 333 1953 179.5 2371.6 1954 1896 27599Stata中面板数据的表示 company year invest mvalue 1 1951 755.9 4833 1 1952 891.2 4924.9 1 1953 1304.4 6241.7 1 1954 1486.7 5593.6 2 1951 588.2 2289.5 2 1952 645.5 2159.4 2 1953 641 2031.3 2 1954 459.3 2115.5 3 1951 135.2 1819.4 3 1952 157.3 2079.7 3 1953 179.5 2371.6 3 1954 189.6 2759.9