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有的时候你需要把你的一部分数据重点显示给读者,如何高亮显示这部分数据呢。Matlab(至少2010版)里面提供了一个ShadePlotForEmpahsis函数,help ShadePlotForEmpahsis会提供如下帮助: 
) E" I. s' w0 x& d* f/ G$ DShadePlotForEmpahsis 
7 z. s& L! C2 I  Plots a shaded bar for emphasis as commonly seen on cconomic charts1 M1 u; {1 l9 j 
  
. g2 T# ]& G" J; w  INPUTS: 
  d7 l7 F6 v& x6 Q   x     where the bar is placed.   If you want a bar from x=4:8 then1 h" L& h* G3 x% u. _; t 
         use [4 8].  If you want x=[4:8,10:20] then use {4:8,10:20} 
2 j+ W- f2 C+ v  colors Use 'y' to make all bars yellow.  Use {'y','g','r'} for, B4 g1 [6 |% i/ o# l; Z 
         yellow, green and red bars. 
0 i! b! k& D7 N0 s% R5 w  alphas Use 0.5 if you want all bars to be translucent.  Use {0,.5,1} 
) H. {6 i4 S. e; W$ z         for transparent, translucet and opaque bars. 
/ U/ W: K" F: s3 X! ^ % A1 Q! `, \+ Y$ Z+ b9 \ 
  USAGE:2 p' M( R( p$ ?2 P 
  % DEFINE DATA 
: D% Z+ r+ t& E; r3 `% y7 M' p  P=[ ... 
% f( F4 Y& ]& X' o  o* R6 f5 [! r  98 98 94 91 84 83 82 87 88 89 91 91 90 89 89 90 91 91 87 86 87 84 79 80 ...4 [! n- ?0 k$ f0 }) J 
  85 86 86 85 93 93 93 93 97 97 95 93 93 94 95 96 96 92 89 90 91 91 91 92 ... 
" v( g2 \* I$ ~- O: m" t9 _  93 95 99 98 99 97 95 95 94 90 92 93 93 95 94 95 93 92 92 92 91 90 89 89 ...  x$ Z# P- s  p& W0 k' U4 I- w 
  90 89 90 89 88 84 84 83 84 85 85 84 82 82 82 79 80 79 80 78 78 81 83 82 ..." _6 Z1 E. b1 | 
  81 79 77 77 78 77 78 79 79 81 81 81 78 78 78 78 77 78 79 79 79 79 81 85 ...1 s& H! h; g  [1 r& b. Q 
  86 86 86 87 85 84 85 86 88 88 90 88 88 87 86 86 85 87 87 87 86 85 84 83 ...  ~. w7 j+ F7 F4 {4 D0 r+ }9 j; ~ 
  82 81 81 82 81 80 82 81 79 80 81 80 80 79 85 85 82 83 84 85 86 87 86 86 ... 
- v/ ~* A- y" t4 E/ }4 v8 C  85 85 85 83 79 81 83 83 84 82 80 80 80 80 84 81 80 76 71 70 70 69 69 68 ...0 r+ K: [* h9 W9 w( p" m" m1 T 
  67 68 68 68 67 68 68 70 70 72 72 71 69 68 68 68 67 68 67 66 67 67 67 66 ... 
' _; B+ c0 B$ {. z7 p4 Z  65 66 65 62 60 60 59 59 59 59 65 66 63 65 68 68 68 68 69 73 74 71 71 69 ... 
8 g! _2 v  ~- a; [! y  71 72 72 76 76 74 77 80 82 80 78 80 80 80 80 81 80 79 77]; 
0 B. `( J. [9 p8 C. i  T=today-length(P)+1:today;$ K. k3 U. T+ a8 m" W% G4 `5 v 
  Y={today-[13 74],today-[142 172]};; p6 G4 U$ q1 l0 h 
  G={today-[30 51]};' t5 A4 o, i7 ]1 _# w5 A8 t4 H 
 - ^9 Q$ e. J6 [, L! S 
  % PLOT THE DATA0 h7 c. \# z2 A6 K  ~3 A! `, d 
  plot(T,P);, H8 B) e# }/ U. o# I. `- k 
  datetick;; N# c. _0 z# B4 d 
  line(get(gca,'Xlim'),[80 80])3 M  h- c/ ^* F- ^ 
  line(get(gca,'Xlim'),[68 68])%* E% J4 m6 v! u0 x! F) u7 z7 A 
  title({'ShadePlotForEmphasis','(P<80 yellow, P<68 green)'}); 
5 ~: J% C/ c' f  
& N0 |. g4 n, R  % DRAW SOME YELLOW BARS 
6 n& K8 C$ J, A6 z  ShadePlotForEmpahsis(Y,'y',0.5); 
. `/ `/ z  d$ f2 D! d6 w0 v' Z" V) [  
( J* g6 R( u1 d$ G( i8 Q9 q  % DRAW A GREEN BAR 
& L! I2 r. n4 h! d" N  ShadePlotForEmpahsis(G,'g',0.5);3 i, @2 F; O4 D2 E6 p  q( W0 q* M 
  
! f& C( [8 J: z. d4 b( A# h ' Y$ K  ]$ j3 O. D; W 
  | ##  _#__/ 
  m# {7 A1 Z1 T. O  | ##  / # 
4 J! l0 N* c8 E9 T5 L: C  | ## / # 
! C6 S2 e! W. _# I$ W7 G/ j  | /#_/  #6 N& c, c5 r* ]! O. V 
  |/ ##   #& R2 r3 y$ b7 p9 A1 K 
  |__##_____#_____ 
2 E; u, ?  c) B/ F; k7 Y" B; d* b ; b4 z1 m. _) l3 M 
  IT'S NOT FANCY BUT IT WORKS% |/ i+ b- J) N6 s 
 
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运行结果如下: 
+ j1 h, S3 F1 [; ^  L, G8 [(如果提示today没有定义的话,在开头加一句today=now)3 k9 i5 a1 ^1 c1 e 
" F/ }' T" M8 [- [- u! z; J, M 
 
6 K3 Q! x4 p1 v) E+ {! Z 
 
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