Getting Started Example for PROC SPP
/****************************************************************/
/* S A S S A M P L E L I B R A R Y */
/* */
/* NAME: SPPGS */
/* TITLE: Getting Started Example for PROC SPP */
/* PRODUCT: STAT */
/* SYSTEM: ALL */
/* KEYS: spatial analysis, spatial point patterns */
/* PROCS: SPP */
/* DATA: */
/* */
/* SUPPORT: prmoha */
/* REF: PROC SPP, GETTING STARTED EXAMPLE */
/* MISC: */
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ods graphics on;
proc spp data=sashelp.bei plots(equate)=(trends observations);
process trees = (x, y /area=(0,0,1000,500) Event=Trees);
trend grad = field(x,y, gradient);
trend elev = field(x,y, elevation);
run;
proc spp data=sashelp.bei plots(equate)=(residual intensity);
process trees = (x,y /area=(0,0,1000,500) event=Trees);
trend elev = field(x,y,elevation);
trend grad = field(x,y,gradient);
model trees = elev grad / grid(64,64) residual(B=70) ;
run;