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>> A=rand(3)
5 }% g8 s) U9 G1 W/ Ga=mean(A,1) %按列平均
& C0 n: |) N) J K" B! ]b=mean(A,2) %按行平均
1 l5 o2 ]( A4 M' O, q4 Jc=mean(A(: )) %全部平均
9 t* w6 c, V F, z7 p& mA =( J4 N) G1 y& y0 L) T( k. `
0.8134 0.8940 0.2876& t8 ` l( o5 g6 X+ S, ~; g) V
0.7185 0.9507 0.9264* e# \* P# }6 k7 s# z) N
0.5008 0.4624 0.4963
' d" B G3 S5 u: w& ga =$ A# J& W$ z6 i+ O. H
0.6776 0.7690 0.5701
. G, Z6 X( c) Z. s+ I# ab =
% I5 Q, O4 K& K* D6 G( @) i# m* a0.6650
; a* g2 W6 r9 W6 R% K) L0.8652
" l" y. t! J1 ]4 e0.4865
. V" ^7 n6 p! g3 j+ O8 @c =* ?4 L& d, Z. D7 b6 M9 p, [. L% S- K
0.6722$ O+ s$ |9 m2 H; p
>> |
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