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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:
' y8 M' D3 L) sShadePlotForEmpahsis
$ ^* n' Q6 u- T% L4 e Plots a shaded bar for emphasis as commonly seen on cconomic charts" V. Q+ E- @2 |4 K" V! j1 W6 I/ b
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INPUTS:
, k3 q; D1 z, P: q x where the bar is placed. If you want a bar from x=4:8 then8 Z9 \/ d V, B) x& u" ?8 V: L
use [4 8]. If you want x=[4:8,10:20] then use {4:8,10:20}
1 B( w/ J6 h$ }8 X) Q colors Use 'y' to make all bars yellow. Use {'y','g','r'} for
; z4 j( I( @$ ` yellow, green and red bars.
! N ?: o1 c S alphas Use 0.5 if you want all bars to be translucent. Use {0,.5,1}- }5 P, ~0 R( W8 P5 ?! K% M' O/ d
for transparent, translucet and opaque bars.
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2 ^9 J& h: j5 U$ b USAGE:$ u8 b. U" b' @1 Q @2 K! b6 O
% DEFINE DATA
! m# S8 I( o# N5 {1 h; H P=[ ...8 `8 }. |& X6 W. b$ l
98 98 94 91 84 83 82 87 88 89 91 91 90 89 89 90 91 91 87 86 87 84 79 80 ...
/ e% O$ x, T. ^- |/ z; l 85 86 86 85 93 93 93 93 97 97 95 93 93 94 95 96 96 92 89 90 91 91 91 92 ...
1 d9 A5 }1 {; R4 [ A* G ~+ n0 H 93 95 99 98 99 97 95 95 94 90 92 93 93 95 94 95 93 92 92 92 91 90 89 89 ...6 R+ \0 `: _3 B4 Y2 h
90 89 90 89 88 84 84 83 84 85 85 84 82 82 82 79 80 79 80 78 78 81 83 82 ...8 a7 l4 [: ` P8 B
81 79 77 77 78 77 78 79 79 81 81 81 78 78 78 78 77 78 79 79 79 79 81 85 ...6 g+ l6 q, Q7 d i
86 86 86 87 85 84 85 86 88 88 90 88 88 87 86 86 85 87 87 87 86 85 84 83 ...
1 }* R/ m+ L( @9 _ 82 81 81 82 81 80 82 81 79 80 81 80 80 79 85 85 82 83 84 85 86 87 86 86 ...& s( S4 `# Z8 \8 f7 E; K
85 85 85 83 79 81 83 83 84 82 80 80 80 80 84 81 80 76 71 70 70 69 69 68 ...
7 m- X# f4 r8 a v% u" X. Y 67 68 68 68 67 68 68 70 70 72 72 71 69 68 68 68 67 68 67 66 67 67 67 66 ..." h# U' V9 D. Q
65 66 65 62 60 60 59 59 59 59 65 66 63 65 68 68 68 68 69 73 74 71 71 69 ...
! @/ |2 f4 F9 f7 Z3 z5 N' o 71 72 72 76 76 74 77 80 82 80 78 80 80 80 80 81 80 79 77];: W7 ^- ?9 Z# j+ C6 B8 u* m
T=today-length(P)+1:today;
7 y1 k: a) O |; K) `5 r Y={today-[13 74],today-[142 172]};( H/ ~! r! s5 j# `) C% Y
G={today-[30 51]};( o+ O4 }" O8 { \. h, J' Q4 j! }+ J
7 q8 n7 a+ g/ A( E( _" p# _/ _* Z( e& h % PLOT THE DATA$ K" K5 v0 n4 q) m( h, `
plot(T,P);
& Q0 i& N0 J, W7 u7 [5 z; \ datetick;
2 }4 Y p( [% f, [0 L2 O6 f line(get(gca,'Xlim'),[80 80])
( @7 `" x7 S2 S( p line(get(gca,'Xlim'),[68 68])%' i/ g$ v, c3 U, I
title({'ShadePlotForEmphasis','(P<80 yellow, P<68 green)'});
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% DRAW SOME YELLOW BARS9 v# J+ l1 K) v. l K
ShadePlotForEmpahsis(Y,'y',0.5);
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% DRAW A GREEN BAR8 M3 x7 `. q5 a( m" O- {; L6 h& [3 r
ShadePlotForEmpahsis(G,'g',0.5);% N* }) H4 i3 `4 J% k* L
% Z6 I: c8 u; t. A; t k
- t/ q3 b+ ?+ Y7 x8 {$ j3 i* A* B, S | ## _#__/
5 e P# k2 G7 j- L2 i | ## / #3 O# {- L. n4 w5 w6 f
| ## / # G: H1 U% x& e) ^3 l j' M. [
| /#_/ #8 ~3 b! h$ n z2 F9 h/ s' u6 u/ E
|/ ## #
1 S# n ~( g8 T0 y+ b' D/ _ |__##_____#_____7 I, S. U; d6 r. d/ h, ^9 f4 s( g7 o
7 x& X# x4 R. O5 d IT'S NOT FANCY BUT IT WORKS$ {$ G$ P) o; y5 Q; @) n
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. @1 V; k2 C; L5 p! X# K) _" \$ Y! a运行结果如下:1 U# I! p6 B6 C7 d5 a
(如果提示today没有定义的话,在开头加一句today=now): G- a% Y- t9 V- A, D" W
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