IT has been said that it is more important to measure the light than the place of a star. Add the time factor and there is the observational province of the student of variable stars, namely, the ...

This article introduces the new Stata command spgen, which computes spatially lagged variables in Stata. The only additional information required to implement this command are the latitude and ...

Section 1.1 (Page 4): 3,4, 5(a),6(b),7(c)8-16,18,22-23. Turn in: 22,23 Section 1.2 (Page 12): 3-5, 7(a)-(d), 8-11,13-14. Turn in: 7,13 Section 1.3 (Page 22): 2,5,6, 7 ...