
-------------------------------------------------------------------------
                              SepalWidth          SepalLength      Counts
                          ------------------   ----------------   -------
                               (1)       (2)     (3)        (4)       (5)
-------------------------------------------------------------------------
SepalLength               0.378***    -0.313                             
                           (0.066)   (0.239)                             
PetalWidth                0.626***                     0.972***          
                           (0.123)                      (0.052)          
-------------------------------------------------------------------------
Species                        Yes       Yes                             
-------------------------------------------------------------------------
Estimator                      OLS        IV     OLS        OLS   Poisson
-------------------------------------------------------------------------
N                              150       150     150        150         9
R2                           0.635     0.080   0.014      0.707          
Adjusted R2                  0.622     0.055   0.007      0.703          
Within-R2                    0.391    -0.535                             
F                           30.836    17.468                             
F-test p value               0.000     0.000                             
First-stage F statistic               19.962                             
First-stage p value                    0.000                             
Degrees of Freedom             145       145     148        147         7
-------------------------------------------------------------------------

