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代码如下:
% t5 A& P+ V2 V3 ^, Bclear all;
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randn('state',0);6 ^2 M1 y6 K6 s1 O% i1 t c
rand('state',0);
) m7 w& F2 U6 V: Y4 _6 E' I6 s2 Wdt = 0.005;$ Y8 x" ?' Y+ ]: d( \
J = 1000000;6 J- a- D' A+ ?) N8 p: T
for h = 1:100
7 M' K# S9 F7 p8 S x = normrnd(43.68,39.85,[1,J]);%设定分布:正态分布,Avoided fertilizers application6 k( w" q5 m1 M- w# z
x1 = find(x>0);
! k U( u+ r$ x o9 ^3 t x2 = x(x1);
6 _% k. F5 r! U; j4 ~ X(h, = x2;0 x R8 c) r3 {
A(h, = mean(X(h, );( A" I5 r$ `& v$ R* c
B(h,:) = std(X(h,:));$ A, j$ V% ?2 ?+ O$ r# y6 N
y1 = X(:);4 y+ B* m& S" D
Y1 = sort(y1);
( A8 a5 C* s5 C* @9 E5 B W = length(x1);
* o; J# J0 V6 x if rem(W,2)==0, F3 z, f. E1 z: u: P1 f' E+ A5 r
W1 = W;8 S2 f+ V5 C; G, z/ K& f) C
else
( R( @+ R) K6 l5 v ]. u+ J W1 = W+1;
, F6 }. x1 R! g0 l u, c9 V# A end* c* G8 ]) V( Z" F6 [% z/ b2 F6 F
for r = 1:W1 * 5/100
# D! Y; e+ M3 j1 T2 N4 z W2(:,r) = X(W1 * 95/100 + r) - X(r);
. F8 S# `; W" [* v6 S end
3 f, w! X+ R; C f. Y! g$ P# E n1 = find(W2 == min(W2));& e8 _9 m8 q( k5 E: ^+ t
C(h,:) = Y1(n1);
3 u& n4 d2 ~& J" | D(h,:) = Y1(J * 95/100 + n1);
1 E8 Y" c) k7 s f if h > 1
2 h# u4 ~. x) ] Y/ ?0 f$ P2 ?5 l A1 = 2 * std(A)/sqrt(h);
2 q& a \8 T; N' R1 K. b/ [ B1 = 2 * std(B)/sqrt(h);
2 B5 d, S( k' O& p! [ C1 = 2 * std(C)/sqrt(h);
f6 Y1 P2 Z* b/ c0 z2 E9 c D1 = 2 * std(D)/sqrt(h);" A. u( d, X. o' l! A) g5 `6 g
if (A1<=dt&B1<=dt&C1<=dt&D1<=dt) == 1
) j7 I8 \/ @- `' X3 x break
3 p' N- a+ W1 e! J7 h! ~ end
. O1 X3 g) O2 I1 v9 H- ?# x# c) k% P end7 G, {8 e' a( J! c2 c+ `
end
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8 g9 e0 @- P6 O3 g6 C0 E
! T0 f4 ?7 ]& z- W2 L: q9 w8 ^/ h' E
- q& l& Z3 ^# Z; t
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; j2 m$ H2 u! c5 n8 e
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