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代码如下:, r1 C8 Q5 O( K: O
clear all;
8 Q6 Q- o; L2 p" f. W2 {clc;; g3 j. t) u/ |1 U5 L+ a
randn('state',0);1 h1 |1 S1 j" _( b/ S( K3 ?! ]2 n
rand('state',0);; {. {( u, i4 B' s# K+ E$ L6 D
dt = 0.005;# \ B# i- W4 e
J = 1000000;
9 d6 N' M S" M! e+ E( r4 J* Ifor h = 1:1004 z4 Q5 H: @& C- L8 d5 t2 w* v5 y `
x = normrnd(43.68,39.85,[1,J]);%设定分布:正态分布,Avoided fertilizers application _( [8 a' ~ w1 O* ~( W- n
x1 = find(x>0);
: [3 F% C8 K3 o x2 = x(x1);
% {. O+ i. y8 W) l: g X(h, = x2;4 b w9 h4 J+ X
A(h, = mean(X(h, ); g" O: H6 E# j9 w
B(h,:) = std(X(h,:));
: |" x6 X% u* w! e O5 r y1 = X(:);" u' }: d/ R, u8 n2 [# n
Y1 = sort(y1);
9 _ q5 P+ f: X$ c; V W = length(x1);# Q) c! d: A, K3 C& B& L1 ]! Z5 \" f
if rem(W,2)==0( r# |3 I3 v% R. {
W1 = W;
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W1 = W+1;3 d+ f* D1 l+ |6 w! J0 G
end) d5 K3 n9 n$ r% O. Q9 I6 x
for r = 1:W1 * 5/1008 a$ S) D& Z! [
W2(:,r) = X(W1 * 95/100 + r) - X(r);
; E e6 w: e8 S1 u end- \! l8 E& M2 O1 A
n1 = find(W2 == min(W2));
3 _9 z, w0 t3 u* l4 Y; W C(h,:) = Y1(n1);1 J$ l) s/ }9 p' c# N# w
D(h,:) = Y1(J * 95/100 + n1);
6 G/ i/ w ?7 i' v if h > 1
( C+ C" q( Q2 Q" ] A1 = 2 * std(A)/sqrt(h);
8 q( F. o3 s) g! u# o+ [, H4 g B1 = 2 * std(B)/sqrt(h);
1 h2 v9 B6 O& F$ ]# j; d C1 = 2 * std(C)/sqrt(h);
j \# a1 P2 T3 d0 s( u D1 = 2 * std(D)/sqrt(h);
. E6 a7 l' k1 N* h9 t9 T if (A1<=dt&B1<=dt&C1<=dt&D1<=dt) == 1
6 U+ a8 L3 C7 q0 s$ B break8 x9 X& d- E3 x5 ?$ ~
end) |# |4 h# V' \/ `. O
end4 e/ z r( t4 P# a! ]8 n
end
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' J0 O1 P9 Z4 `# A! m+ B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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