Information Technology Reference
In-Depth Information
8.
array b{6} b1-b6; do i=1 to 6; if q82b=i then b{i}=1; else b{i}=0;end;
9.
array d{6} d1-d6; do i=1 to 6; if q82d=i then d{i}=1; else d{i}=0;end;
10.
array f{6} f1-f6; do i=1 to 6; if q82f=i then f{i}=1; else f{i}=0;end;
11.
run;
12.
proc nlp data=indata;
13.
max loglik;
14.
parms alp1=-7, alp2=-5, alp3=-2, alp4=-1, bcc1-bcc10=0, bcc12-bcc23=0, bbc1=0, bj1-
bj9=0, bq1-bq6=0, ba1-ba6=0, bb1-bb6=0,bd1-bd6=0, bf1-bf6=0;
15.
bounds 0 <= bq6,0 <= ba6,0 <= bb6,0 <= bd6,0 <= bf6;
16.
lincon 0<=alp4-alp3, 0<=alp3-alp2, 0<=alp2-alp1;
17.
lincon 0<= bq5-bq6, 0<= bq4-bq5, 0<= bq3-bq4, 0<= bq2-bq3, 0<= bq1-bq2;
18.
lincon 0<= ba5-ba6, 0<= ba4-ba5, 0<= ba3-ba4, 0<= ba2-ba3, 0<= ba1-ba2;
19.
lincon 0<= bb5-bb6, 0<= bb4-bb5, 0<= bb3-bb4, 0<= bb2-bb3, 0<= bb1-bb2;
20.
lincon 0<= bd5-bd6, 0<= bd4-bd5, 0<= bd3-bd4, 0<= bd2-bd3, 0<= bd1-bd2;
21.
lincon 0<= bf5-bf6, 0<= bf4-bf5, 0<= bf3-bf4, 0<= bf2-bf3, 0<= bf1-bf2;
22.
tp=cc1*bcc1+cc2*bcc2+cc3*bcc3+cc4*bcc4+cc5*bcc5+cc6*bcc6+cc7*bcc7+cc8*bcc8+cc9*bc
c9+cc10*bcc10+cc12*bcc12+cc13*bcc13+cc14*bcc14+cc15*bcc15+cc16*bcc16+cc17*bcc17+
cc18*bcc18+cc19*bcc19+cc20*bcc20+cc21*bcc21+cc22*bcc22+cc23*bcc23+bc1*bbc1+jt1*bj
1+jt2*bj2+jt3*bj3+jt4*bj4+jt5*bj5+jt6*bj6+jt7*bj7+jt8*bj8+jt9*bj9+q1*bq1+q2*bq2+q3*bq3+
q4*bq4+q5*bq5+q6*bq6+a1*ba1+a2*ba2+a3*ba3+a4*ba4+a5*ba5+a6*ba6+b1*bb1+b2*bb
2+b3*bb3+b4*bb4+b5*bb5+b6*bb6+d1*bd1+d2*bd2+d3*bd3+d4*bd4+d5*bd5+d6*bd6+f
1*bf1++f2*bf2+f3*bf3+f4*bf4+f5*bf5+f6*bf6;
23.
pi1=exp(alp1+tp)/(1+exp(alp1+tp));pi2=exp(alp2+tp)/(1+exp(alp2+tp));
24.
pi3=exp(alp3+tp)/(1+exp(alp3+tp));pi4=exp(alp4+tp)/(1+exp(alp4+tp));
25.
if Y=1 then loglik=log(pi1);
26.
if Y=2 then loglik=log(pi2-pi1);
27.
if Y=3 then loglik=log(pi3-pi2);
28.
if Y=4 then loglik=log(pi4-pi3);
29.
if Y=5 then loglik=log(1-pi4);
30.
run;
7. References
Allen, D. R. & Rao, T. R. N. (2000).
Analysis
of Customer Satisfaction Data
, ASQ Quality Press
,
978-0873894531, Milwaukee.
Dixon, M., Freeman, K. and Toman, N. (2010).
Stop Trying to Delight Your Customers
,
Harvard
Business Review
, July-August, http://hbr.org/magazine.
Hayes, B. E. (2008).
Measuring Customer Satisfaction and Loyalty, 3
rd
edition
, ASQ Quality
Press, 978-0873897433, Milwaukee.
Keiningham, T.; Cooil, B.; Andreassen, T. & Aksoy, L. (2007). A Longitudinal Examination of
Net Promoter and Firm Revenue Growth,
Journal of Marketing,
Vol.71, No.3, (July
2007) 39-51, 0022-2429.
Reichheld, F. (2003). The One Number You Need to Grow,
Harvard Business Review
, Vol. 81,
No.12, (December 2003) 46-54.
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