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代码如下:
2 B$ p! ]$ j* V1 d. d5 |& w/ h/ `clear all;
' c) @( l, ]$ l5 Q( \- Aclc;8 ~5 K( {, q X- J$ i! T
randn('state',0);) G- M4 \5 f# y5 X
rand('state',0);. i( [ r' }# ]% \3 k D5 i: P
dt = 0.005;
* Y% k9 u# w1 \7 T$ IJ = 1000000;. y0 \7 D* x+ z9 v O* [
for h = 1:100& g4 p, b# h. F" v2 o2 w' @
x = normrnd(43.68,39.85,[1,J]);%设定分布:正态分布,Avoided fertilizers application
0 R1 B: {/ n _3 @ x1 = find(x>0);
3 @' F% k- Y6 |' n8 m3 l' O R9 Z x2 = x(x1);
( Y8 b. ~9 i! O6 K X(h, = x2;% W: d2 y! a' O+ N: y
A(h, = mean(X(h, );# s% n S7 c& M' U' S& z) G3 e$ l- H
B(h,:) = std(X(h,:));
; ]4 W* l% ?$ K6 K7 E y1 = X(:);
8 h& c( E; A' p- j' Q7 K) A% K Y1 = sort(y1);$ ^; O; n- G+ n$ ]4 r4 J0 t
W = length(x1);
' M( E; U& n, } if rem(W,2)==01 N! p: b2 Q9 s& d4 V$ q& u9 D9 F
W1 = W;6 ]# P7 \% m5 C2 g1 v
else0 r- j5 r/ e9 B, ]
W1 = W+1;6 B4 y6 F- F4 j
end
+ L) `/ V. c& b for r = 1:W1 * 5/100* d- H8 H5 A( {( ~9 o
W2(:,r) = X(W1 * 95/100 + r) - X(r);- M& K6 B% t/ P1 K
end) F% S& C8 d+ T- b% N! o
n1 = find(W2 == min(W2));) i; d6 e U+ `! g, I( Z5 Q
C(h,:) = Y1(n1);, i% E6 g! @; z# V7 H1 f6 |
D(h,:) = Y1(J * 95/100 + n1);0 Y2 Q- a0 w( V7 H2 R
if h > 1
# {- z. S6 e$ _$ B" o3 H* n A1 = 2 * std(A)/sqrt(h);& x s" V/ V ?8 P5 i5 j( F* Z ?
B1 = 2 * std(B)/sqrt(h);' f7 F) \+ R f, u" Y$ M9 z
C1 = 2 * std(C)/sqrt(h);- _! U( n/ W9 Q7 A
D1 = 2 * std(D)/sqrt(h);' \) c0 X- t! d. \9 l# r ?
if (A1<=dt&B1<=dt&C1<=dt&D1<=dt) == 14 D1 r! c& D9 G0 y& A
break
, n# k9 W( ]/ N3 D' l3 K4 G end
( S8 m$ b+ R* R* ~1 U3 P end# H7 K! W9 ? D- g& p
end3 h3 w! |1 e$ }' j0 q8 y3 Y
, O1 P; Z' i) Q1 G( y. X8 U: o
' V( ?7 C0 y$ i9 U
) H6 ^ l5 A) g; K9 V, S/ A& V
7 y5 {, S; U6 z: b3 o% g6 Y$ M$ l
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" C1 C9 w- P3 [- ^5 I. S* i) D8 [* e& {
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