数学建模社区-数学中国

标题: 数理统计方面的，紧急求助各位大虾！ [打印本页]
作者: pzk_1987    时间: 2011-8-13 09:33
标题: 数理统计方面的，紧急求助各位大虾！
现在有一个区间常数，对它进行了测试，得到了一组无规律的数据，现在想要选取这组数据的散点图中密集的区域进行分析，以求出这个区间常数的取值区间，求解决方法！谢谢！（本人没学过数理统计，很多都不懂，希望大家帮帮忙！谢谢！）# x! H7 S1 z) \1 I7 B( ?
  测试数据如下：
( L9 O4 |) Z6 G. B- \% n$ `: n0.0189527249 }# o, F+ r$ _9 v* ~3 p1 {
0.0134179055 ?! J* q: A( ]# w9 a9 `
0.1256016188 o" |8 r  n) x  K$ ^) m3 ?
0.006599601
$ P6 A- f! q1 m- b/ r0.005600483
- f. X! ?' j. V5 p: K6 s* d5 S: I0.0052137127 C, A9 z- D) U% D6 b/ B1 j: w
0.036414236
/ r8 P: q, u% f) D: n# P0.018239994
7 B: d/ C' r3 l' }6 ?0.004163162
  c  Z7 c; J2 v+ T0 I0.0053096662 u% B% Q2 ?. H7 Q  g  ^& {3 H# K% ?# Y
0.007498692" l% f& W' V# r3 w+ t+ g5 o
0.008363208
1 R8 W1 E7 r' f/ a( F, F0.0051341560 {4 r* c1 Z, a8 }" s
0.006332942# I+ i' C& N1 e" l
0.041126716
' P8 a: ]1 [' `$ u* D( H) u0.00462764; m8 r  h$ W# L* h$ |
0.004503934
: t- F- J9 T) X0 B3 P3 h0.004578509
) v: o5 c. K& A8 c6 v; p9 ^0.034037785
* n! B) |  H: h$ _5 o9 u8 K" k) R. l0.0072735783 ~3 v5 F6 e1 R
0.005700157. _+ Z& S  h, F! [' g
0.003838513
( a, B. _7 g9 b( i' Z2 J0.002659711
7 Q, s4 P# B: q/ A' K4 F6 C0.003900026* }' r3 }: p9 k& p, G$ R
0.017024051
8 X( o( v  @9 Z% ~0.013602978
1 y- n. b. ?8 Q0.009950892. m0 t" K+ L) d6 C* I  B' `/ {2 L
0.0038672( d  h- n: Z" S3 I, ~  {
0.005011324
* r+ n# T+ f. V; I5 F7 m0.000764666* a6 J* A4 E# O, ]& P
0.0007457249 Q8 I) F& U8 Y5 g
0.000732721/ a/ |: b  K$ o, _! z% B
0.001327643
* v, `# L& }1 q* C- H- m6 ?# z! x0.001292989 n" r. b- R1 j: Z( t# s
0.001879926
5 E  h: G; ~" r1 W$ _. K0.003035899  `+ l9 X$ ?' B7 s8 L8 f$ i' g
0.002955375& u8 j. \* |+ d8 W- [
0.002927922 e' g* D4 L: a" B3 J% H- w) n
0.004675958
" |! v2 |5 _; @1 X8 @0.004536844
& q/ ~; s& @" f2 J0.00429267, N4 `9 }8 N- {" N( t& v
0.004093937" ~3 T9 L* F. K4 F; u
0.004102446
7 J/ v* p0 s+ K0.003972463
, f6 l3 O; A. i, X# E3 r0.00383831
& J  X( u& z, D$ ~0 t9 S; d' B0.0040234083 ^* H+ v/ ?  R; [5 N
0.004691167
7 ]8 w( U6 q- N' i0.0046758692 g5 c" _# S+ n1 K: V; l# ?( N
0.005568518
4 S' |5 X1 w- x7 P! |0.005585377
  q5 h% m: |8 p0.006165788; u* O8 ?( a. G9 R1 i& l7 M+ @
0.006463124
+ @9 D! r7 E, z( `; U0.006322655
3 P. [9 f( t1 r  H4 L0.006649755& ?" K! b' G* Y6 R* A* h
0.008151764
9 t* ?* b: k! c2 @3 M/ h2 [+ g0.007970135! W* w' n9 V% v2 Z& o
0.008583789
! u! }, o5 O/ a( D2 q0.008405481
8 i$ E% j* M% g0.00841734
0 ^( W0 M3 F3 N4 t' {- L" f1 Q0.008160751& W9 |, g  `, U4 L! ]# K
0.0081611961 E' l& R5 i' y  K9 H8 S
0.007630298" e1 o. f4 r( D  R
0.008696916
- K9 ]: H6 n5 }1 J. e0.00837857
. L3 n6 H% W: G5 I3 n. ~0.00846665+ L/ f- f+ Z5 ]" x. ~3 R* e
0.0082535935 r$ [  T0 A& _. ~! n
0.008034735
( Y! j6 O+ \/ d& F. n1 ]0.008600579
* w% I9 i% H$ T$ [  M7 n0.008188479
5 j; E! K$ v; A; j5 a! b7 d% h/ b0.008671626. Z% g& C9 L+ U) i  X
0.008740096# `# b' d7 b, w) m2 I. e
0.009036546: h: V0 ]/ t9 \: d0 r8 A  z
0.0089861  d) v9 `% ?, M% z2 N" @$ V5 x- N
0.008664419
- w& M0 }# H4 `. j& ~7 `- ]. W, y0.008861531% n( |3 p, g% ]/ ?. N. g8 g
0.0088666886 V# Z/ p9 ^" \4 T0 d, P) ?" {  \3 u
0.008074604
+ p3 R: i( y3 {, R1 T( z0.008074604
# }7 N* N+ |0 D4 P( M0.007792009
4 Z7 R- d" q" l) L+ ~0.007735733
7 \- |7 [8 L* y4 b0 t1 Y0.008041265' W( G, c8 {% ]; r  c2 @- P) z/ d2 ~. R  w
0.007363148; |, V, i/ I' K1 M' W8 k( r
0.007924665
) n7 v' _4 b! D) p0.007717186: `1 c# e  J/ u6 Y( l9 g) o% k
0.0077167617 t4 h4 Q" A4 |6 b+ |1 K
0.007583835
$ h: ]( s4 \9 h0.00749863
, X6 F) x. l3 k0.007035314, J" y+ C; Q: S* x1 L
0.00678193
, S' ]8 ^3 r$ R% g: c! w) h- F0.007214139
- u- B; C7 [, P% }0.007102152# x& t5 N6 e! e- E3 U
0.007225149: v* |$ T, w- n# T2 I5 {
0.006962074! F* w" I' z5 Z, M
0.007063518" _/ I' ^$ E5 [# ?/ v
0.007006559; ]. C4 S  s. B# F
0.006732106
( K" I5 r* s# \- n4 M0 f  v! {0.007274562; d( i) W$ [+ L4 C( ?
0.008210329
- |% p1 o& ?- V0.0083604749 ?9 X0 \( c/ s8 z% r
0.007898729" _. v0 |0 u8 e
0.00937513  ]  e1 m* b! N9 h
0.009180404
& @* |  O! {, A9 [7 y! j5 i2 w0.008970003  E" c. q4 _( Z& Y/ v
0.008266727, N, z& N. O" e$ J8 u0 k
0.008125667( \" U( s" h5 G
0.010118036
% r+ n& }6 @9 p- r( k0.009931715
! k% x$ ~" _8 F+ d: g2 V* Z0.009802217
9 D' y5 v" H/ U0 o+ m0.011273288
9 y% X' u1 ~: _5 `# |4 ^9 W; U0.012118327, z9 c' j7 j' n# J! V1 C1 ^3 Y8 k9 x
0.013465772  b8 O: i: z/ E
0.012388381
. r3 e5 ~: H& E  l9 m% F) ?7 x0.0142754914 o$ S. J. a! u* i; }
0.0193757229 v1 l, H2 E" I) d. F& ^6 o! B
0.01926741
. V; O+ Z1 m! G* Q0.017488653
- Z) z0 r( Z" z; G2 T- I* L( L0.019510622# t8 D, ^7 c% G$ Y
0.018879179  P. d- j; W( ]6 k7 R6 u
0.0182958625 M4 ?) u$ k+ i$ [1 H: d
0.0190550550 ]6 y  e# u  b3 Z5 b  b* x; s8 f
0.019968003
, R5 J4 M" |6 N5 A0.022638308
. m8 C4 e1 y2 P1 }* B! E0.025920039
% `9 @4 Z/ ?, l, t0.027528965( Z% p1 [2 w8 Q6 B. @8 R  Z& X
0.028992117
4 ]. u: d( H0 |2 e  n0.0296226588 [6 M2 t" h; q6 l
0.027218548
# M7 I# d, l' w/ t( k5 X9 j$ X0.028504595) b- R0 o7 v) T) l
0.027973166+ z' C4 }/ i2 A# H
0.025874262) A# u& I/ |" P' H/ I1 j( A
0.007293814% L0 X- T" g- I( ]" C* a' L6 a( a
0.008233555
  G, h3 [0 z7 ~4 P5 x0.046034241
( L8 ^7 \7 k+ [7 T& b9 u- U0.009149891
9 x* ?) g8 C4 f5 x3 B3 b  M2 k0.007433558' Y  B$ C- y/ |) N
0.006870566 S* p  d8 T9 j5 W3 m# \  b# D
0.0396755819 c! L7 A! S4 }$ d; Y3 F' U! ^( o
0.0090429886 O  p  ^3 ?; N' r- k2 |0 @( B0 A1 g
0.004510038  }& U3 }* B! {* _) d# p
0.063285788
# A1 e$ T) L: m. p; m0.0042512253 m7 ?, B. _- \3 b1 j. {+ r( s2 s
0.015361332- U* Z' a5 w8 n3 z" _1 f9 }
0.0094629621 l3 Y: W$ F% C$ B, N4 F
0.018864979 O9 W7 q8 n* i4 d$ f: o
0.014314219
' n9 p4 ]' W- m7 C* r7 T0.0044306778 \5 @0 B! A" q* v, a; w+ ]
0.005739763' M% r' `) E) ]$ V
0.00531215' m/ c! q9 [% f: z1 g
0.0200723442 y- A& v% w$ J* R* M& Y5 n$ n6 X5 F
0.003588388- z* y5 ?" ^" Z; v: m8 p; ?
0.006120143. W4 r/ k  ]0 s! t0 _& M
0.036638346
, O$ g! L5 T; o/ D6 B& w0.003185795
4 I0 _! O5 x( j+ U( _0.006386827; D! M0 }) J% y  G
0.036638346: y/ f9 b* x: {* i  o
0.015421392
& N- s) _+ t1 s2 q0.004494385* Y- j0 b, a! n* v3 y- p* R
0.020669428: v8 u& O  W4 F5 }9 U* d2 Z" k5 L
0.013594219
4 M+ C- i2 }7 r9 m. d0.0044264, u7 J9 R; P7 f. z2 }+ X
0.017669704
4 Z6 m! A: ?+ ^/ |/ j  Z0.003964725! z2 m# n+ Q' |" |" v: f, p
0.0044264
% R2 B& c2 T1 c9 c. p5 T8 G$ j0.002783274
+ e! r. V$ s3 D0 n* v0.005268201
* t& u, ]5 c/ S# x# ]7 o' [5 W0.004075479& Z0 l* ?* [, g4 F
0.006169613
" {4 B0 |  a% N4 @' o" C6 {0.004269071
3 J- r8 {, L# y( l* W0.003108483
$ s/ e6 k' X) M9 K0 C* B. L% a0.005949894
/ X% }) I9 L9 y' B0.0044092975 U" I6 \# e+ \4 ~% c! A
0.0047485169 _2 d! z: d7 g8 G( L# `# L/ J
0.0047485166 K2 f; b6 `- T5 R
0.005777969
& ^8 i7 t# X% t. W* W; L0 v0.00747771
5 O3 D( J# M! n7 m  G8 O, N" W0.003485016
3 S( K4 f! Z" W) U7 @0.005335251
1 ~! y. b) z. V2 I$ V0.002895638 ~  j5 {. P3 e7 t* p5 l
0.0050429079 T# h* h  j6 u5 q
0.006352353
7 m6 b) x6 f! a5 \+ A9 z9 U4 m" s0.0050429079 N" h* U9 d, g2 }! l
0.0131566717 e7 D' K+ ~9 D. Y' ~4 v( {5 y' t
0.010736981/ B: a7 T, Y- [" X2 V0 ^
0.011222603
% y9 j! r, I# Q# r0.014633341
, S' [  T+ h8 B: b0.02357821  A" `& G8 m0 G+ U/ H, o
0.0427552: i. @8 ]- B  t
0.01538506
" O! l5 V& I) S' U; Y  c2 g: z0.0213579396 b& b% T1 A# |2 s0 S2 V
0.0135996974 e( R- V& L* d  s
0.0402494129 t- f* B* n! s) L; @$ w
0.02099717
8 i1 Q8 M+ I& o4 X9 J0.009903475! h; d3 }! e2 f9 g
0.013881647( V. ^8 x1 T. I9 w
0.008854872' A% I, e/ D: Q& i+ W$ C
0.018884504
/ Y9 ^7 O6 T' b0.0092554773 E$ i+ F* q" j! [! v% S$ r
0.022600865
/ n6 Z8 L7 _6 {+ x* X( j2 W0.01152354. S. v3 y3 l/ |& N9 \$ j
0.002140481! L: @1 t% q7 r, {4 k( I& z
0.003487909: _9 a; N8 `- K& e3 h
0.02433267
) T: d, O$ y2 U9 O0.005509486
+ o8 P+ w: [) B  K, ^6 c6 Q# X) T5 l0.013477644% ^) t9 T; ~. i# P5 k0 }
0.006633484' b7 {; Z: A; D
0.0018649330 b* O9 i1 p! \* I  |9 M5 E
0.000764554
  B" w/ E# Y, ~+ s$ B* D; V6 P$ M$ ~0.005250544
, @6 Q" N! F. m# Z; {& @0.005621023
$ ~" l) O( }( R, U* z& [7 F* Z0.002395892/ L, |' p5 }  F
0.002335101
2 P# z+ R) `2 p- f2 a9 J; t" S5 i% I0.00217835
! x, l, V+ y5 W! ~. _9 n4 F: B0.002172925 Y* M+ [: D% {, L
0.004781461+ x5 x- v$ x- }
0.001974718
2 e" L' G+ n/ N. ?, y; X9 C0.0024003275 W) N" e4 \5 \" J5 _
0.004214646$ R) o% Z7 W  g" m1 }: J) d
0.0046421371 i9 W1 J9 k- ^$ n& u
0.0033587218 ^! W9 @3 o% ?
0.003968174
: B! _9 o% j2 k5 v3 j0.002761852
1 F: b7 [; B, q0 R( ?4 p9 N3 I1 ]1 _0.004829022
3 p4 }5 a' O4 ^' F8 g0 p$ S7 p0.001988959( L1 F' X, x7 t* B3 n8 p0 n9 x
0.00458089. z( h& L% k4 U" L8 Y0 D2 i
0.0039376* ?# `8 j2 h) g0 U8 h! X, N
0.011373123
0 g. R) [3 Z$ T1 P: u! M& V0.003502927. k: v0 j1 h% t) p" q' r1 q# n6 d, Z
0.005382147
7 `- ^' q' L, D( X* Q& x0.004607356
, v+ y  D# }0 c0.00895277, m& `( y- v$ p% _: N  S
0.0050318182 Z$ S5 d% }4 ~) U  Q9 d
0.009896085
8 p, o/ L; X! f) V" o& q1 G8 R0.00397038" L* I8 r, t3 M, ^, U2 Q
0.003968512
7 s% `3 n, J1 f0.009589452- `; m" z" e3 _, K2 e2 P5 z5 Z: e
0.003970389
; Z% q1 |/ y' `9 M' F$ {) e0.013168428
6 ]+ J- g3 J7 K# O: ^- q) ^: ~' j; b0.006440429+ Q5 \3 s3 Y3 ?2 M2 o, b
0.021554199
! H, S% b( `. w7 `6 Y0.02154641
; D9 p: x+ i6 K+ O# X6 C0.0046419195 ^9 F! h7 N) d5 Q$ x
0.098781337
+ Q: [+ q1 {+ Q4 U9 L0.06865152
, r5 i% E; r& D- T0.031125458
2 }6 W: {. W- ]. A, |0 D1 a  y0.069189766! T7 u+ t4 w7 k7 K/ t  r0 E' Q
0.0912651444 a& R% u  h7 B2 \# }8 ?& Y
0.023243941
6 {# y3 J7 Q. z: ~' h, C+ }8 B0.008677148
' C/ }) C$ V5 v9 o3 l! L0.002061033  ~7 U5 g- t4 X1 n5 g3 Y9 T- U; u, P
0.032091916
0 Y5 E1 F$ [+ w7 m: L" @0.013616287# z8 B" n+ e# r& R* g  B4 [/ P
0.006517532
" s( c, [9 P: P, q0 \0.009019015
4 @5 b* }* `* m& R0.021883914
% q! F3 u+ [( N! Y5 w1 B( j0.008592853* [# D- L% v" x, _, `6 Z5 {
0.005418447
7 ~6 M( K" T$ k- m0.005663453+ Y! y& @2 t) m$ d6 f- d
0.014909778( Q5 y" L9 ^& s1 \% d- P2 m
0.013949361$ q. U9 E: c7 J4 h5 f
0.010892195, @5 v4 G+ J" g% d0 m: b
0.006355731
, V1 |' S% y! G. q6 Q9 [! \0.01355459* @$ _3 ^* t- T8 O. c& ?/ L
0.027565088
7 J' \# o8 c7 ^- B! N0.004280156) Q. R  J/ V  P4 @- H: c  J; n
0.002970045
, l$ g$ a* w& P5 A3 q0.001513085' D! b$ f& n" }- _
0.001916401
# G  Q" s2 T/ v- X7 r$ b0.001606874* ^; y8 R$ c6 K3 ?* c3 K
0.001882472 E( e9 X( u" m8 b6 t# ~
0.020998498
+ c' t  T* G$ c! C' z& p$ l0.013499248: W- h0 g7 k7 g7 X; n
0.005846493
( Q8 J$ n1 O9 |0.0320919169 Z' d! g1 U, u% w7 s, T' b
0.014478161' g3 I2 e, g; {) W( I
0.005094272* |/ C2 p' B1 j9 f9 u
0.025140783
+ L( Z9 C' x' E: I0 {8 B( D0.008143956: O5 A% R* K0 a* ?; \; o& M: _0 `
0.020242413' F, h" h. |* r
0.02684793
( ?; S' V. R# M0.0175006
8 Z- [3 j1 e) y8 e0.017940033
9 I2 {+ N. }* z6 Y  F4 F& e0.010019477
6 T/ V: J, j, A+ t  J9 E+ ^0.012138501
) V( E9 l- q3 `0.015948239
, v2 S9 H7 U6 ]2 J4 N! Q( t8 b0.005190617
; _) R6 e% y. U' L0.0029721956 g5 O( H! z5 i
0.015678677
% ~: c  }! J0 Q6 ?0 @0.006488154- O' p1 F& g" e. u( C  z
0.010842674, T9 {8 c) V' u! X( }- n: |0 D
0.008666015
4 `* M. @' o. C. Z; n5 h0.01331691" r0 I( e3 C3 m0 W1 [3 C! D  O. s/ c5 c
0.023664688
2 q+ Y/ C6 W: I1 z/ m0.0072841* H2 @+ T# O9 u3 W
0.075095185% Q: R' L' U) X- J. ~" v0 `9 N
0.018548146! B$ S4 g4 D! P% P0 w9 ~8 j
0.017021539
6 E1 [- y% K; m7 k- I; ]( c0.012953754! t% K: J! ?5 d6 `, d
0.009962377
) F0 B8 K6 Y( t$ \0.060105954
* |& b, U/ z9 B/ O1 f2 x0.018286507
8 A/ b' ~, X5 C: w+ s0.042217365* ^3 D8 X3 n& X/ D/ C
0.02425476
* H: ]' o; Q  H4 R0.006355731
: D  _( b4 c! N, Y1 p. [. C0.003323188! J) y4 {3 n+ \4 p6 Y" w
0.0691192732 Q# E  [- b& @% M. Z
0.01355459: U+ c) \# e9 W. w0 L; S2 F" r
0.018516297
5 l# x4 B0 h8 _) V7 M  L0 e0.016048442
/ E& |7 n+ i! L0.008472421
- b. V, X0 N3 d; s0.021327279
' n$ R( {$ r% p5 `0 k0.0292940526 Z3 I5 q6 }  L( O
0.0229227348 m2 ]* e7 V* c. p. @) y4 d% d
0.013649921
- T1 o6 `/ v: v4 o3 i- L  g1 A$ g0.002508015
  o! E1 ]1 u4 A5 h2 Y; N' r0 n: P7 O0.014139623
/ \+ g& l' q/ R5 ?, o0.040294383
3 ~$ u# V$ u1 @, D0.006707548$ Q, a( n0 w4 e& i' e8 |1 H3 i* c
0.002061033
! j9 W( k* A0 P! L$ n$ J0.066639401/ ]7 {. g4 Z+ b3 Y4 Q3 }. `! B* n
0.019376818$ x7 R5 Q+ |  d2 T0 Z/ ^0 c& a% h
0.02443978/ G% k- o+ B6 ]9 A
0.0127789699 W- H2 C' T. I/ @  x" t: D" |- Q
0.005638233
& _6 X9 J% C3 J6 m% s6 }0.010153881! ^- {. @! j/ r- M& j
0.008630281 H# j5 X% {8 c* i4 V
0.013457631
+ f3 q1 ]# A) Y1 L" g7 U! i- m0.009050426
2 {7 C4 q5 B7 O& z, j0.002983382
. Q9 K+ I' ?3 x: [# w- s0.008956903
  p' R) i5 m7 q) V0 _0.003377041
. r4 f8 `& S1 F0 d' d+ h- C0.003553088* p, x9 P+ D5 V; q! m5 k
0.003840658  Z1 r: z4 X8 [+ U9 d
0.015459386
& Q1 @/ {" e6 N6 m: a0.013696284
( u% {6 L: k9 t) `  Y; j4 T. a0.005754874: A9 x& _. Q! C6 e6 t2 _
0.004586977+ P: j; w8 F: Y$ B1 y
0.011536695' C" l% X* J/ Y: o+ M" N5 s
0.003690991" V, V. I4 E& _/ @2 M
0.0069747255 b- _- W  L' z- q: r
0.00485987% n9 G/ K8 O! Z
0.0056473429 G3 B* s9 V$ w6 W
0.0071236445 b1 B. s# X( U8 C( S
0.004354856
; B/ X1 L; @0 @) v- v3 x0.004520464
' l; b8 P" v1 }7 X4 f, ?5 q+ ^9 [+ e0.002671043' E9 T+ l! o% F9 f! Z
0.0022334920 H6 s. l& F- H5 J; B* w8 i
0.055575088- ^9 ?  a3 O" o& b0 V& h0 N1 y+ ~
其它的系数你可以随便设，标注出来就可以了，谢谢！
0 C2 t" V4 T' |3 o" W( Q8 o
作者: liuhao301301    时间: 2011-8-13 10:13
buzhidaoali
作者: @#￥    时间: 2011-8-13 11:32
这个貌似有点难度。用统计的方法很好解决嘛，个人建议用SPSS或EXCEL做一下
作者: qianlei    时间: 2011-8-13 16:51
本人也没学过
作者: huangfenli    时间: 2011-8-13 17:01
这些数据考下来 是乱码 你可以用软件 或者excel 对数据做一下分析 做一下散点图或者用软件大概筛选一下数据 分成两部分 然后再分析
作者: pzk_1987    时间: 2011-8-13 18:01
huangfenli 发表于 2011-8-13 17:01
( u! U+ A) q- D% Q; v! A) v这些数据考下来 是乱码 你可以用软件 或者excel 对数据做一下分析 做一下散点图或者用软件大概筛选一下数据 ...
; C. u  y% F! S  O
你好，主要是我没学过这数理统计方面的，不知道从哪里下手，希望你能帮帮我，谢谢！这些数据我重新发了，应该不会乱码了：
% O5 y# y0 R5 Q4 y0 N* [1 G0.018952724# L: M" [6 z- P# R6 r5 ^/ Z& h
0.013417905  J% \4 h; S: |9 U: B1 T
0.125601618; E& T' }- i% ?$ o* y
0.006599601
- k  I( M& H, W+ M8 R# q) F0.0056004839 _5 |7 ?% [' h. v* F( ^* V& R
0.005213712
0 R' C; u' ^6 V6 Y& r4 j( C0.036414236
, e( p1 F0 P- f) v0.018239994
- g6 j6 f0 y: Y( G/ U* y) w0.004163162
# s# f. H$ T5 v$ I$ @0.0053096668 z- v3 F; z4 P" H4 e4 H
0.007498692
) h# e9 x, K0 Q0.0083632082 W3 I% f9 I1 @! I1 [0 O
0.005134156" N# b1 m9 e" z
0.006332942
) z  [2 j; `: j) N% T0.041126716  A; Z) B, ]4 h* z
0.00462764
+ y5 y: s1 `: f0.0045039349 L' k* Z5 c9 l+ ]2 z5 Q% O
0.004578509
% J' A& ?! [4 P, Q1 v0 W  U0.034037785
7 V! L6 U- S' {% b% x9 g0.007273578
; @5 G# i1 M& n0.005700157
; D* J+ S- B/ C2 A, e9 ~0.003838513
5 r# B3 s. k) {& D" J4 P0.002659711* b: A! F1 X! z) P, c: V$ z
0.003900026: S7 v6 u' L' ~
0.017024051
# j$ e. C! @" J  P0.013602978, |9 N( L+ N* M- I/ o
0.009950892
8 `; j+ v  k2 w6 B& ^, {0.0038672. e+ n5 V& _( n  |3 _1 i- V( ?
0.005011324) N* }% R. U  T; b
0.0007646663 Q: s7 [7 `6 F2 _% b
0.000745724
( b9 z" W) A$ }; Z6 E0.000732721# m) P0 ]: P- }2 C5 b! S' f! C
0.001327643
4 [# u3 o: o  P  f0.00129298; }0 M8 P0 R% K4 d3 ^' N
0.001879926, O3 L3 a4 A- _7 T! K6 c
0.003035899- N. h. Q! P' B9 w3 [0 i# c
0.002955375
) v0 J, \/ e/ o5 ?0.00292792
  T6 n, @: ~: R: Y7 r' C3 a2 V0.004675958( R* l1 c0 P# Z0 w+ m$ K
0.004536844
3 c5 P1 x" o; w) J9 n0.004292678 R5 E6 ^- Y# K1 [; }
0.004093937
/ |, l' \9 G0 C3 k0.004102446$ a( X- S; k& [- z& P2 B7 W; J
0.003972463
7 a& t+ z$ S8 S. M2 b! E! n4 W2 E' g0.00383831
# p9 x( L6 k' S# X' L! F% B2 E0.004023408
+ P4 k  M3 w6 F) a. f3 |0.004691167
9 W" k, ~1 P! y, R# ~# r4 P/ M0.004675869, o* a) |' D& g- u& D1 J
0.0055685183 f" l/ F) |; `! n
0.005585377+ s1 w7 \9 W2 D3 T# h! b
0.006165788
! @5 ?3 r' |) i7 B% s/ E1 o( ^3 o0.006463124! Q4 j2 h" l+ {; f/ d
0.006322655! i) ~2 |0 a9 [6 {
0.006649755
2 h- k: w! l: K9 g& m5 [+ F0.008151764
; D3 F- _, {, t6 R, ?0.007970135
& R: @4 P+ P- [3 t2 `0.008583789+ ~! q( \; x0 Y+ z3 B, P, V* x
0.008405481: r+ M" A2 s; c8 c3 c) K+ Z
0.00841734
9 ?; C/ A7 @# U! W& l# _- P( Z0.008160751
6 g( T  ?" N5 S# l! E; M0.008161196
- T' {: S, C6 c2 W. ?5 R$ I4 u$ q0.007630298
- O  }/ l8 o& s* Y1 O0.0086969162 \. f7 W1 h- u/ x& B6 M, n
0.00837857
$ t2 H7 U9 q3 D" s0.00846665
3 l+ e$ ^- V% d  Q( l1 U+ X/ F0.008253593$ ^( K' ?( q5 |2 D
0.0080347354 j" W% e+ f* m7 I
0.008600579
0 S0 l# g" q' ]0.008188479
: `- o. u8 j% z2 d0 X0.008671626
& R- Y# \% Z2 m$ G0.0087400965 O- }+ e9 s# S$ C. A) \
0.009036546
# O5 j. t7 D9 e; g- j0.00898618 o, j4 e# ~9 e  X; a
0.008664419
3 j7 H2 X. a; Y/ m0 b! W8 g; a3 s; v0.0088615318 D3 q: Q+ A6 V) q
0.008866688- h: c5 X6 k' m. @* n  I
0.008074604& D: o$ }7 G' j4 R& S
0.008074604
) {2 @3 ?; ]. ~% V9 a3 V0 |. i0.0077920099 b0 _2 W* u6 }8 p. I
0.007735733: @* _$ b2 ^- x
0.008041265  \' ~2 q% [4 Z& Y3 i$ @
0.0073631483 p+ B6 }) R0 a: I% o) @
0.007924665
4 P1 x. C- L: a5 Q* |0.007717186* v/ j! t# C+ Q- U' q
0.007716761, |' s$ a8 A% `* s
0.007583835, o$ \$ l3 j% N: L. f
0.00749863. r0 l1 D/ I' @5 [7 w
0.007035314
) t- [( k8 V; Z" f2 c* v8 Y0.00678193
6 L6 t0 ~: M% Z. _0.007214139
- ^! P& Y+ A" X7 X0.007102152
2 z; P3 `' Q$ X- z9 t& s7 U: `' i0.007225149
, s# P' g; z/ l1 F' i: _) B7 T0.006962074! F3 Y: Q8 h5 u4 L; R; r
0.007063518$ y3 [* A; N9 X: ]; u
0.007006559
3 b6 k4 }  u( v9 T9 g2 V0.006732106
& m6 e  C) _: n8 q. u6 S9 `4 v" _' T0.0072745628 y; C1 K# _6 T9 z4 P. J7 t; M
0.008210329* d# k# C% {  ~  Q" D! U
0.008360474: c" I7 X! [# M4 O
0.007898729
0 \8 N9 ?2 v; C1 D  z0.00937513
6 Q1 l: s6 ?$ h1 h" l0.009180404
& S* j/ v% B" s  S4 q. m4 z! G0.008970003
0 ?: J% A7 Z8 p' Y8 G6 B0.0082667276 J+ U. C+ V4 D: U( Q
0.008125667, J( \3 V1 V6 Z; o: q
0.010118036! N- _6 J6 o* M1 J0 n0 ?
0.009931715
7 X* x1 c1 A" ?% |0.009802217
% {9 X! m' `9 i$ w0.011273288) w9 }" g, z  K0 F) \: J* |+ N
0.012118327
2 Y; O1 n0 A* L% m0 t0.013465772
" W& k$ h9 e0 T4 {- x1 K, `3 n: R! e0.012388381
! n0 A' M: p& y4 o% `9 V. a/ e0.014275491$ B0 {' |3 J6 k  r; h7 ?1 E
0.019375722
1 W5 ~( k- _6 O4 i& X9 a7 e+ x/ @0.019267410 Q) i2 X0 ?5 l5 T! E, U) T0 k, W/ E$ _: _
0.0174886537 a0 e% L5 D* U$ \
0.019510622
4 m9 R9 S  I& ]0.018879179
8 y/ a9 f/ j$ `8 ~; _: G0.018295862! m5 L5 s, w7 O- H1 U# v
0.019055055$ r5 n: v8 Q9 K$ P& x* ?+ t' q
0.019968003
% A+ a. E# ~$ {% ^( c, {4 l1 |/ C0.022638308
" F/ l6 h2 b0 s1 G' K9 E5 B0.0259200393 Z" N& ^0 Z  h( V6 g) K
0.027528965
- U4 r( ^6 |6 S" R0.0289921171 z, n# `) }4 t9 D1 W
0.029622658
( g. b1 `, P1 ~0 i, a6 x' o5 l% H0.027218548- e4 p# U/ t; y, C
0.0285045958 @7 y4 ^. O  ^3 x* l- C6 i( m' M2 s
0.027973166- q1 G! k7 q" q9 b$ b  o. o; _' D
0.025874262  }7 s' O3 Z: m+ C& j: j
0.007293814& \  T( [- u; W5 o+ U4 J" ]: f
0.008233555) L" k7 t2 c; U
0.046034241% H, @; x% y! Z6 z- {: ~, [
0.009149891
) f- S* V7 g* \2 n5 {4 U$ D0.007433558
$ v0 {4 L8 i. e# {5 |8 G0.00687056, I, H+ m  I& _4 d  m+ p- U
0.039675581* B! m/ n. x# X3 M8 a- J8 _# d7 i
0.009042988  Q: l% F! ~1 L! q' X0 J9 b
0.004510038( P$ U) y/ i3 I" Z6 ^9 W; F
0.063285788
. u3 `% q1 n+ D' X4 H! Q! S0.004251225
/ D- ^* S9 I7 N7 f, f0.015361332
! V  x/ \/ [4 A+ o6 E1 U0.009462962: [: b# b, y. o, y
0.01886497( M! o- C( e6 p3 |
0.0143142197 O9 P, U  o+ x1 c( v
0.004430677. @( X+ L2 A: h1 G
0.005739763
9 q. y2 R3 s6 Y1 j/ ?! L0.00531215' q; O6 `% f  q  H
0.020072344
& y- S$ h! P* S" p' q2 e0.003588388) ^) G6 @& p* u* h2 j. J: p' N) U: e
0.0061201433 v0 ?( c* _! o( c
0.036638346
7 F- Y1 Y) Z5 n1 f- H* H7 Y! j( |5 l0.003185795
3 v* {; M% J# V( [" C9 G; x: s  a0.0063868271 _) }+ o+ ^4 C: D
0.0366383462 Z4 H: M: n9 p9 o: S* U
0.015421392
5 n5 w4 }2 q0 f$ G1 D2 Z+ e0.004494385
6 S( S2 L. p. o  q8 \  ?0.020669428
- |5 F1 r7 ~( ]: ~1 W- S) B0.013594219" l" k5 w0 R+ o  ^- M" O' L
0.0044264
9 l! r9 ~; F- c! o4 i1 C0.017669704
$ W* w' M8 I+ Q9 f0.003964725/ x$ E4 x( R+ O+ L/ C7 o* ~
0.0044264, w" Z& l- f5 h5 ]7 q9 u
0.002783274
& H7 a" ]' X8 Q+ i) X0.005268201
& M9 c, E) h) ~& i0.0040754797 |/ \+ j. t4 R8 J! \& u
0.006169613: ^7 K6 E3 l" m6 i
0.004269071
/ Y: P; w0 }8 @0 V( ?* ?4 b0.003108483
" d+ o1 g1 Y# n3 E7 R0.0059498948 Q- T0 j5 u/ `# e
0.004409297
0 h; p7 C8 g: q9 f9 ^0.004748516
) d/ q( d3 y9 j1 U6 N8 s1 A0 n0.004748516
' E: g* Y+ ], b& M0.005777969( w; C' a. I, O9 p6 h( l" N" N
0.00747771. ]: Y0 }8 h. j; _" z% W
0.003485016
# {$ @, y" _2 @" g* k0 h; B8 v0.005335251; a$ _+ Z3 ?, l. a+ H
0.00289563/ w$ P+ \. T) m2 i
0.0050429074 t! j" `  C/ @  r" a* X3 D
0.006352353
4 p% E4 M, e6 ?* R- n! _5 \& {5 p0.005042907
: l# A. l. P3 \1 y0.013156671
; a5 s$ h6 |1 Q% b0.010736981" `2 i" @2 U  {5 @- Y, w9 I
0.011222603+ V% }& Y8 m; H! Z" L
0.014633341
6 m. Q$ w1 E6 W( ?6 j. U$ X/ m0.023578211 s$ v& L, y; P; Z" q  z2 e2 F, G
0.0427552* H0 W1 [& J# @; G; w1 b& F! m2 A& @
0.01538506
1 M1 I% {, T2 \6 D' a0.021357939
( X6 ^# \: Z/ W0.013599697
5 j# Z4 |- [1 u- \+ o) q4 ]8 e0 g0.040249412
4 _# j7 _' X  W. Y7 A: S0.02099717' f" |* G) m; _  `) [7 _
0.009903475
1 o7 @, C4 W3 ~/ A; w0.013881647
0 j) w6 |. |6 ]' l4 n0.008854872
9 n/ y; ~$ x+ q; P/ s' t6 b0.018884504. E/ h) z7 _2 N9 E
0.009255477
2 p* ~6 N, k, P2 F3 h+ f0.022600865
/ _  V3 q# O; m; n5 X0.01152354
* y' L- Y& ^. p* p* ~, q* x2 B  U0.002140481
  \! `2 B$ e2 ^) N+ L# n0.0034879094 G6 S& {; f; u# S
0.02433267" p% u% F" G4 B; o0 S
0.005509486! a& D/ E- T4 G/ R% t3 s1 u
0.013477644/ P) w- Q4 d8 ^5 w
0.006633484
4 S( C7 s% e$ q( g1 ?# V0.0018649334 d5 k$ X! r& p1 f0 S
0.0007645542 a0 v: K. q( q; O
0.005250544
1 ]+ q. T) f4 m1 X0.0056210236 ]- H8 {2 g" Z. [6 x6 k7 X; T4 v
0.002395892
1 f- ^8 _2 V$ |- z# y0.002335101
0 n; t4 ~# \0 }2 h- E, m2 S0.00217835  B: t# a! f; x# K  u7 ?* q2 w
0.00217292
1 U. E* r1 o2 {/ A0.004781461
4 [" x- d( a6 W8 J0.001974718
& P9 E1 i% I7 P$ J3 j0.002400327
# {& n* M3 K+ Q) ?1 Z0.0042146460 w0 {( [+ i; I' `* a
0.004642137
2 J1 C8 \+ ?: m( [) a9 i0.003358721
5 Z/ ^. f& f% ?) E1 \! g' z, r0.003968174
  ]7 E2 G7 N& K. f7 W! W8 [3 s$ i0.002761852- N2 g# E; Y" X* j0 @9 u
0.004829022! D" j9 v/ D* x# i! _& k0 {
0.0019889599 H5 I& Y9 i) q- y. u9 V& s
0.00458089$ X6 j9 A% L8 ]3 }; a; Y
0.0039376
2 k) M  ~0 }: p0.011373123. S6 a7 o6 a9 Q7 u  T: B# o+ D
0.003502927
- [; N+ l3 V4 g4 b0.0053821473 m  u; ]3 ?- K; `: X' I; J
0.004607356, O3 E% s" x/ }* a/ ^
0.00895277
# B- J, _) T: e9 u0 P0.005031818
% @8 S8 x# D6 ?6 e- C+ H* U# x5 I0.0098960851 f$ L$ {8 y6 c4 S0 ]1 K) I
0.00397038! N! S- U0 ]1 f% j* \; w" R
0.003968512
2 j1 R+ l8 H- l' I9 R8 m0.009589452
' f( _4 N1 b  B- w* y, a0.003970389) N0 Q& m: `7 s. z, f4 p
0.013168428
) |, W8 T9 e+ x7 D0.006440429
+ q( n; B+ R; s5 [1 q3 K0.021554199
# [6 s/ T  L; Y, y" s, n2 W# X0.02154641* O' Q8 l' l  r: q9 l$ Q% A: B( M
0.004641919
4 v* V: O) g, K& t' |# l0.098781337
2 n5 A7 f, A: n: G  V+ L+ D0.06865152
1 L; {' ~% O, J2 ~. x7 T$ S" \0.031125458
- r7 F+ ^* k5 q! z0.0691897665 B; G- [4 f) y9 [% V' _* M4 l
0.091265144
0 A2 x' i) R$ ?  V) ~8 j5 [0.0232439412 s) k. W# ?" L9 P! ?
0.008677148
- N' ~/ r( }$ v* ]; t* J, _8 b% @" A- T0.002061033
4 q- l' z! q6 D$ G0.032091916
2 n6 Y- F' X- q/ M0.013616287, g1 h/ \: Y# e8 u
0.006517532' n+ O7 [" Z# A+ t; h5 m
0.009019015
% a& p7 Y! J2 m& {: d. L% z0.021883914
* x1 @7 d, \( I; ^5 @0 F* m( [$ q0.008592853( T4 q) Y2 [0 v  h7 _( h
0.005418447
% _( M( p7 C9 u% p5 v$ m6 C0.0056634535 ^6 c/ I" {: E& R- U
0.014909778' S$ w' q1 d' K, z" z
0.013949361
' u! L0 M4 q  K0.0108921951 }5 b- u  F% m* m/ g* J
0.006355731
4 `" y6 f' H/ t- z/ v! e. `0.01355459
- g+ j* t: @/ j+ X, m) d1 s% {0 x0.027565088% H+ p/ l% ~: Z
0.004280156$ _" n9 i& G  \
0.0029700458 z$ @5 z0 k# H0 `
0.001513085( m6 B  w  I) X3 D$ R
0.001916401' L0 M4 @/ ~( n& O* u& V
0.001606874
0 }* o- W& s& [, U$ a" J0.00188247
: K$ i+ O* J" `* {& |8 D0 q# X0.020998498
" x2 s4 D& P9 F& U' t0.013499248" P- O  X( {$ ~; h
0.005846493
( k6 ?, M7 Q4 c1 g0.032091916
1 s# H6 m  J  M! J0 ?0.014478161
3 @; F1 ?! d/ j: m! X# ]4 H0.005094272
4 ?0 ^: f" B5 {3 R6 m0.025140783% \2 a! _, [+ X* \9 ~; s
0.008143956& d- ^3 m: K) A: a) ?+ @7 t
0.020242413
- Y+ m1 `$ h6 ?& Z9 \$ \! d8 W% @0.02684793* U  L9 N* U, r
0.01750060 o6 {( C* {' @- Q: R  [! t
0.017940033
- q5 M/ y' Q7 }# s# Q: A/ |+ z0.010019477
1 ?: ~7 H* z% R1 `& c3 l: P1 g0 k1 J0.012138501
1 `, R  P8 p% [, ~9 ?0.015948239( I% [8 R) c  [. i9 R( i+ }
0.005190617$ ~7 F+ v1 s( s) W5 q. c9 a
0.002972195# o/ }$ [* ^3 y* f5 O! G5 {# R
0.015678677; U- y; C+ H- c" L$ v$ q
0.006488154
1 r" [# D/ d1 a  R0.010842674
+ @+ B3 r/ ]+ g& X0.008666015
8 w/ R" X1 {4 X! N6 f4 e! j  T  l0.01331691
* p: z* w- A: o: D, @' K2 [0.0236646880 v: @- _! o' r
0.00728419 R& p4 j$ E, A8 b
0.075095185
, S+ \/ w+ W7 m/ [' @0.018548146
3 D- T4 Y( Z1 ~; v7 Q0.0170215390 k, Y) G7 h+ d4 O. r! |
0.0129537545 Z3 j6 t7 X6 D2 _2 m
0.009962377
: K, u$ ^& s1 S8 t8 J0.0601059544 B9 s# O1 P7 B1 Y) M1 r4 H. [. i
0.0182865072 x  l  ^: f' k* s" T- `
0.0422173650 S; }3 I. s! G: y, ^
0.02425476  h# f0 ]: w; ^0 h  P
0.006355731# @9 M% F& E* V6 Q8 e
0.0033231881 Y* I2 n" {/ K  B  c+ K( \$ _
0.069119273
' L0 S& q$ l/ F& c0 G0.01355459  c5 D5 C$ b# x; ^
0.018516297
( t( c; j* p/ |0.016048442# G2 V- ]  h, @
0.0084724216 t  C1 e( T8 E+ b% S" F
0.021327279
8 q" s) f# ^, ?6 I1 i0.029294052: R% Y" I2 K& S2 V7 i9 p, f
0.0229227343 L& ~. ~! W" T, T
0.013649921" X* @3 j- V1 t, N, q5 z
0.0025080156 c- E- h$ H0 ?5 B4 r* m
0.014139623
) n- o. `0 {* W% G0.040294383
' v2 Y- j9 X6 s0.006707548
7 V+ L  W- Y7 P* Z6 j+ M* h0.002061033
: p8 h8 o# X3 A9 z2 R- _1 H0.066639401
4 X2 n- F6 a' N, ?0.019376818
( e! P5 Q2 J5 G& \0.02443978
2 n& i8 B) H/ o) l9 g0.012778969& b. S$ A" J& o5 V
0.0056382335 N, t% i- G' d5 D: c- M3 b7 `" i- u
0.010153881
$ n% b2 D5 k, ?- U( j3 c0.00863028
$ h2 Z3 R$ x7 _( f) P+ V0.013457631
- n2 J  P# w9 p+ Z9 j0.009050426
. P& H( ~! g# X9 R7 W0.002983382
* a/ J$ P' ~0 K" M& \0.008956903. l, q# c) Q$ c, \5 X/ t" p* m
0.003377041
$ p6 O0 t3 n: r+ Z7 p0.003553088' n9 J4 |5 x9 E7 j6 y# `! z
0.003840658
( z7 S3 v" ]' r' S" r2 s0.0154593861 I$ r* L! j& t$ G  h- m
0.013696284& \! L' i9 V! N" Q. t% I
0.005754874
  T: F7 o) V5 V- o  ]& }, V8 Z9 }$ J0.004586977
+ s! J1 x" [! ^0 u0.011536695
, C" z* b5 O" r; `. P1 b# m- v0.003690991
" Z) i/ v- V" N; L$ I# K0.006974725* O6 J/ P7 A4 F+ x) a- u; P
0.00485987
7 v" T+ c# p0 J  g% \8 ~  h0.005647342
8 ]6 z/ O# v5 `1 W0 B- A  g0.007123644, F( o+ a! _# v* _
0.004354856
% ~+ G5 V, M) |/ q2 \0.004520464
! c0 m# g* k, l  N; ~" F0.002671043- H+ ?* ?: ^. L1 i% Z  i
0.002233492
7 m. G5 e( I  N; g' y# e8 ]0.055575088
" ?( y; b* i$ ^) U% @
" A8 R2 b) m+ w7 b7 b8 M3 m谢谢！
作者: huangfenli    时间: 2011-8-13 18:16
不好意思 还是乱码
作者: pzk_1987    时间: 2011-8-13 21:48
huangfenli 发表于 2011-8-13 18:16 - g$ G. p. Y4 t
不好意思 还是乱码
  h0 L' j8 C+ h  R0 c0 |3 z$ `
呵呵，悲剧啊，这次我直接发给您EXCEL吧，谢谢啦！

数据.xls

26 KB, 下载次数: 0, 下载积分: 体力 -2 点

数据
作者: pzk_1987    时间: 2011-8-14 21:37
huangfenli 发表于 2011-8-13 18:16
  f+ m. Z4 `+ q5 f% L不好意思 还是乱码
4 x) W6 t+ K8 f/ m9 J* L
能收到我的数据吗？能否帮我算算啊，谢谢！
作者: huangfenli    时间: 2011-8-15 08:31
pzk_1987 发表于 2011-8-14 21:37
% u& ^& G6 @' a+ E能收到我的数据吗？能否帮我算算啊，谢谢！
% Z% d7 v. ?0 l( f/ h
我这边每次下载下来的东西都不能看 好像是下载工具的问题 我也不确定自己能不能做出来 只是感觉应该那样做
作者: pzk_1987    时间: 2011-8-15 08:34
本帖最后由 pzk_1987 于 2011-8-15 08:34 编辑
" F; b0 m7 e6 ?! M9 {; J
huangfenli 发表于 2011-8-15 08:31
% i* p! s  G1 V4 U9 l% P0 P4 D我这边每次下载下来的东西都不能看 好像是下载工具的问题 我也不确定自己能不能做出来 只是感觉应该那样做 ...

8 f7 H6 R3 G6 v  [
2 ?: g( C( l* c呵呵，没事，你有邮箱不？我发你邮箱吧，这个问题困扰我很久了，我以前也没学数理统计，希望你能教我，谢谢！
作者: huangfenli    时间: 2011-8-15 15:44
pzk_1987 发表于 2011-8-15 08:34 3 w- D. o+ {, o8 y  j0 t% R
呵呵，没事，你有邮箱不？我发你邮箱吧，这个问题困扰我很久了，我以前也没学数理统计，希望你能教我， ...

# z& ]3 V1 d, y5 A) Y4 `7 @! c: Ehuangli2008-love@163.com  我试一下吧 但不确定可以做出不
作者: pzk_1987    时间: 2011-8-15 16:19
huangfenli 发表于 2011-8-15 15:44   g( Z4 E, |5 g! ~7 E
我试一下吧 但不确定可以做出不
# H3 c7 h: X% l8 V" g
数据发你邮箱里了，不管能不能算出来，总之都非常感觉你，谢谢！
作者: huangfenli    时间: 2011-8-15 17:29
pzk_1987 发表于 2011-8-15 16:19 : ^3 e% l  l! k
数据发你邮箱里了，不管能不能算出来，总之都非常感觉你，谢谢！

& K, Z3 W3 b" }2 g3 m我试一下吧
作者: alair005    时间: 2012-2-7 11:15
支持一,下楼主辛苦了7335106745099938



欢迎光临 数学建模社区-数学中国 (http://www.madio.net/) Powered by Discuz! X2.5