Imagenes creadas with STATA

Imagenes creadas with STATA®
Ejemplo gráfico de 26 de febrero de 2002.
. use hours
. graph hw
Fraction
.847679
0
0
50
hw
. graph hw, bin(50)
Fraction
.323331
0
0
50
hw
. graph hw, bin(50) norm
Fraction
.323331
0
0
50
hw
.481258
class, bin(50) norm
Fraction
. graph
0
0
50
class if class <20, bin(50) norm
.482109
Fraction
. graph
0
0
15
class
. graph
class if class <20, box
class
15
0
. graph
class
lab_hrs hw, box
class
hw
lab_hrs
class
hw
lab_hrs
60
0
60
. graph
class
lab_hrs hw if lab_hrs>0, box
0
Los archivos de datos se encuentran en
/mit/17.871/Examples/hours.dta