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I get the following warning when running a prism map using proc gmap:
WARNING: PRISM routine has encountered some missing values.
Beware that PRISM map may produce erroneous graph.
I'm running the following code:
data thefts_daily;
input province $2. theft_frequency;
cards;
10 0.0
11 0.0
12 13.7
13 32.4
24 45.6
35 50.1
46 117.1
47 27.8
48 47.6
59 84.8
60 0.0
61 0.0
;
run;
goptions reset=all gunit=pct border cback=white
colors=(blue lime yellow red)
ctext=black ftext=swiss htitle=6 htext=3;
title1 'Auto Theft Frequencies';
proc gmap map=maps.canada2 data=thefts_daily;
id province;
prism theft_frequency/ coutline=gray;
run;
quit;
Can anyone see what might be causing the warning?
Art
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