Hello,   I have 2 Variables:  Star, bin_NAV.       - Star is the ordinal scale where its data included  2-star, 3-star, 4-star and 5-star.    - bin_NAV  is the ordinal scale where its data included  1, 2, 3, 4 and 5.       (bin_NAV is created from proc hpbin to bin the ratio scale variable, NAV, into 5 classes) I want to build histogram classify by Star by the following procedure. The histogram show the value of bin_nav at 0 and 6, which are not in the data.  (See figure below) What wrong is the code? Thank You.       ... View more

Hello,    I have a single equation, where lwage is the dependent variable,  there are 15 independent variables and one of them (educ) is an endogenous varaibles.   A exogenous variable, nearc4, is used as the instrumental variable.   I use the following procedure in SAS and get the error message.   Here is the results. Can you help me out from the problem?   I apply the same data set to STATA, and I can get the result without problems. Thank You. ... View more

Hello,    I have 6 independent variables (A, B, C, D, E, and F) proc reg   data = example; model  y =  A B C D E F; run; Given that  b_A, b_B and b_c are coefficients of A, B and C, respectively. How can I generate a new variable from                NewVar = y - (b_A)*A  - (b_B)*B - (b_C)*C Thank You ... View more

Hello,  I have 2 questions about proc ARIMA.   I hope somebody can help me out. (1)  I have tried to find optimal lag length of ARMA process by using  procedure (a) and (b)  Why the minimum information criterion changing when we change p in proc ARIMA?      Procedure (a) :   p = 1, 2, ..., 12     -> This lead to indicate 12 as optimal lag.     Procedure (b) :   p = 1, 2, ..., 12  -> This lead to indicate 10 as optimal lag.         (2)  How Can I add intercept and  trend in this procedure? Thank You.         ... View more