xxhg2.sas

those are some program of the sas system .and very useful when doing the statistic working .

title'相关回归分析';
data ex;
input sn humus n @@;
cards;
1 3.92 0.231 2 3.98 0.212 3 1.85 0.216
4 2.22 0.135 5 3.51 0.204 6 2.84 0.170
7 4.11 0.247 8 1.55 0.133 9 2.37 0.182
10 3.60 0.182 11 1.10 0.080 12 1.37 0.090
;
proc plot;
plot humus*n;
run;
proc corr;
var humus n;
run;
proc reg;
model humus=n;
run;