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>> A=rand(3)- m8 A! Y! z" m% B+ n2 K1 r
a=mean(A,1) %按列平均
$ w8 c9 b6 n, d% O5 Jb=mean(A,2) %按行平均
* _6 P- ~7 V3 `/ ~* bc=mean(A(: )) %全部平均
' a: Y+ T' b) x5 a% p0 x$ @" CA =
; j" c. r" J3 f5 i5 D5 u5 i5 z0.8134 0.8940 0.2876
1 P# }% R$ V; }, }7 b0.7185 0.9507 0.92645 T/ e% I3 x( e ~' l2 s: S. E
0.5008 0.4624 0.4963: `& ]% M) b% d& F+ K
a =
( _6 w& j H5 B. `( u5 B5 v) K0.6776 0.7690 0.57012 S6 F$ T% r- b7 U `, a ~$ o
b =+ T! |3 M2 G2 e4 S1 i$ E
0.6650
& W4 d: U6 O! I/ l0.8652# s8 `/ `) K7 R t+ t
0.4865
1 h _+ Q* D8 N5 sc =7 K/ w1 F) _2 ^8 K6 k/ M& A5 w2 l
0.6722 |
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