Monitoring Airline Flight Delays
/****************************************************************/
/* S A S S A M P L E L I B R A R Y */
/* */
/* NAME: MVPMNGS */
/* TITLE: Monitoring Airline Flight Delays */
/* PRODUCT: QC */
/* SYSTEM: ALL */
/* KEYS: T Square Chart, SPE Chart */
/* PROCS: MVPMONITOR */
/* DATA: */
/* */
/* SUPPORT: saswgr */
/* REF: PROC MVPMONITOR, Getting Started */
/* */
/****************************************************************/
data MWflightDelays;
format flightDate MMDDYY8.;
label flightDate='Date';
input flightDate :MMDDYY8. AA CO DL F9 FL NW UA US WN;
datalines;
02/01/07 14.9 7.1 7.9 8.5 14.8 4.5 5.1 13.4 5.1
02/02/07 14.3 9.6 14.1 6.2 12.8 6.0 3.9 15.3 11.4
02/03/07 23.0 6.1 1.7 0.9 11.9 15.2 9.5 18.4 7.6
02/04/07 6.5 6.3 3.9 -0.2 8.4 18.8 6.2 8.8 8.0
02/05/07 12.0 14.1 3.3 -1.3 10.0 13.1 22.8 16.5 11.5
02/06/07 31.9 8.6 4.9 2.0 11.9 21.9 29.0 15.5 15.2
02/07/07 14.2 3.0 2.1 -0.9 -0.6 7.8 19.9 8.6 6.4
02/08/07 6.5 6.8 1.8 7.7 1.3 6.9 6.1 9.2 5.4
02/09/07 12.8 9.4 5.5 9.3 -0.2 4.6 7.6 7.8 7.5
02/10/07 9.4 3.5 1.5 -0.2 2.2 9.9 3.1 12.5 3.0
02/11/07 12.9 5.4 0.9 6.8 2.1 7.9 3.7 10.7 5.6
02/12/07 34.6 15.9 1.8 1.0 4.5 10.2 14.0 19.1 4.9
02/13/07 34.0 16.0 4.4 6.1 18.3 9.1 30.2 46.3 50.6
02/14/07 21.2 45.9 16.6 12.5 35.1 23.8 40.4 43.6 35.2
02/15/07 46.6 36.3 23.9 20.8 30.4 24.3 30.3 59.9 25.6
02/16/07 31.2 20.8 15.2 20.1 9.1 12.9 22.9 36.4 16.4
;
proc mvpmodel data=MWflightDelays ncomp=3 noprint
out=mvpair outloadings=mvpairloadings;
var AA CO DL F9 FL NW UA US WN;
run;
ods graphics on;
proc mvpmonitor history=mvpair loadings=mvpairloadings;
time flightDate;
tsquarechart / contributions;
spechart / contributions;
run;