WARNING: 8 observations in DATA= data set or BY group are excluded from the development of the classification criterion due to
missing values on CLASS variable.
WARNING: A total of 8 of the 18 observations in the DATA= data set were excluded (frequency sum = 10).
请问有人知道这是什么情况吗?
完整的程序在下面:
data d511;
input x1-x4 group $;
cards;
13.85 2.79 7.80 49.60 A
22.31 4.67 12.31 47.80 A
28.82 4.63 16.18 62.15 A
15.29 3.54 7.50 43.20 A
28.79 4.90 16.12 58.10 A
2.18 1.06 1.22 20.60 B
3.85 0.80 4.06 47.10 B
11.40 0.00 3.50 0.00 B
3.66 2.42 2.14 15.10 B
12.10 0.00 5.68 0.00 B
8.85 3.38 5.17 26.10 .
28.60 2.40 1.20 127.0 .
20.70 6.70 7.60 30.20 .
7.90 2.40 4.30 33.20 .
3.19 3.20 1.43 9.90 .
12.40 5.10 4.43 24.60 .
16.80 3.40 2.31 31.30 .
15.00 2.70 5.02 64.00 .
;
proc print data=d511;
run;
proc discrim data=d511 outstat=out simple wcov pcov
wsscp psscp distance anova manova
pool=test list listerr posterr;
class group;
var x1-x4;
priors prop;
run;
proc discrim data=d511 outstat=out crosslisterr;
class group;
var x1-x4;
priors prop;
run;
求解答啊