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代码如下:' Y: d9 c4 I! G) @5 }) m4 o; r! D
clear all;
8 z, K; k9 `/ D2 Lclc;% W4 c: Z [# M, W
randn('state',0);4 p+ J2 s A9 q+ w0 V& M' z; I* c
rand('state',0);+ s* w% ^ ]9 L% x
dt = 0.005;* F8 u p$ K: X* w) q. T( O
J = 1000000;
) e4 \* d* ^7 a' H7 a# j' W2 A& O5 `for h = 1:1003 J$ H: M: f2 M# `
x = normrnd(43.68,39.85,[1,J]);%设定分布:正态分布,Avoided fertilizers application
1 {& E( o: Z; A4 R- s* y. J$ `$ y x1 = find(x>0);
( T- H! L7 w0 m* ]6 t3 D6 s$ u x2 = x(x1);
3 N, f, Z, j: H% \ X(h, = x2;
: v& B6 o( l, k3 k2 @ A(h, = mean(X(h, );
$ c- W r8 L$ d' x6 N B(h,:) = std(X(h,:));
: v" R" A/ p& \2 |# z y1 = X(:);
' @7 Q: p" x2 w1 u2 L* P0 g Y1 = sort(y1);
. K$ U+ E; Q* U1 \$ _ W = length(x1);
! a- R. _! @: {) u: A/ {( L if rem(W,2)==05 U% F( J8 g/ J X1 A2 M" w
W1 = W;
2 x( x- a* X2 ?9 r7 M) d# {% | else
0 A) c, O/ K1 P; i! ^& m W1 = W+1;$ I' O* ?7 m0 e- }' q
end
" P8 H" F: |# w; o# }; o. | for r = 1:W1 * 5/100
3 P% m% W. ~0 j W2(:,r) = X(W1 * 95/100 + r) - X(r);
S) ^( y6 g% e. H' f9 V" L# h' E end
2 e) |# j3 W, ^- {6 v n1 = find(W2 == min(W2));
5 t( J( c6 e0 i6 J/ j- ]0 ~ C(h,:) = Y1(n1);8 z5 ~% E+ L0 ] [; X! v
D(h,:) = Y1(J * 95/100 + n1);
0 p v9 r: [9 b if h > 17 X+ D z1 D5 K5 i3 ^5 T( s( E3 u
A1 = 2 * std(A)/sqrt(h);
: F& W I0 s1 o) V. N J B1 = 2 * std(B)/sqrt(h);
. R6 t7 ?6 o! c" [ C1 = 2 * std(C)/sqrt(h);
, A' S+ c- g/ z _' F% t1 d8 } D1 = 2 * std(D)/sqrt(h);
3 K& p* V' b1 P" B6 c; Q8 S% x if (A1<=dt&B1<=dt&C1<=dt&D1<=dt) == 1
: P, E1 v/ n- Z6 B break" t% w- m# U; o/ K6 ?: Z( Y/ d
end
& N' r9 T, B* ]* I1 d# [ end
8 {- b& Z+ o, J1 Y$ ~/ I/ ?end
1 @! `8 Z, i. l7 U% _- D/ H( |5 o9 G2 a) P! w5 C
u% O7 K1 y- \, w4 z4 f7 |$ `. C5 Z" Q( i1 S: Z4 }3 z0 @1 \
7 } A1 m+ J; Z2 N# L; e" S+ i$ v" ~- q/ y% {. ]' Q
上述代码运行后出现“下标索引必须为正整数类型或逻辑类型。” 为什么
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