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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:0 g# @- X4 R+ F; V& |) B
ShadePlotForEmpahsis
9 D6 T, o( @0 N2 c, a/ l Plots a shaded bar for emphasis as commonly seen on cconomic charts; U! v% @' x7 e! c9 j" k% ^; ]
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INPUTS:
% W z) Z% c. |; \+ } x where the bar is placed. If you want a bar from x=4:8 then
# Q+ R( c9 ~: D) _# a. Z use [4 8]. If you want x=[4:8,10:20] then use {4:8,10:20}+ B1 o% d X0 {$ j" i& a
colors Use 'y' to make all bars yellow. Use {'y','g','r'} for
! q; i& h! U2 |( Z2 H5 V3 J9 X7 P yellow, green and red bars.
! l6 I& V$ n; R& X s9 z alphas Use 0.5 if you want all bars to be translucent. Use {0,.5,1}
- L; }' R# k" N1 f* N for transparent, translucet and opaque bars.4 B) x# T) F6 h
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USAGE:
' c. t; \, \" M, ^# h7 M- I# G5 X % DEFINE DATA
/ T7 |3 X, h3 O* y P=[ ...- T4 J: `# t( s* ]; t! \
98 98 94 91 84 83 82 87 88 89 91 91 90 89 89 90 91 91 87 86 87 84 79 80 ...
" B( \9 l: D: B- b9 b1 @ 85 86 86 85 93 93 93 93 97 97 95 93 93 94 95 96 96 92 89 90 91 91 91 92 ...7 N0 L8 j- h9 @ D
93 95 99 98 99 97 95 95 94 90 92 93 93 95 94 95 93 92 92 92 91 90 89 89 ...
! A7 a: l6 k: T) w1 a5 g1 }" x 90 89 90 89 88 84 84 83 84 85 85 84 82 82 82 79 80 79 80 78 78 81 83 82 ...( ^7 f% d. e# ?* R
81 79 77 77 78 77 78 79 79 81 81 81 78 78 78 78 77 78 79 79 79 79 81 85 ..., i) Y! B/ _* \$ W |6 f/ \* r
86 86 86 87 85 84 85 86 88 88 90 88 88 87 86 86 85 87 87 87 86 85 84 83 ...9 i) G( F( b) j5 {1 t/ d
82 81 81 82 81 80 82 81 79 80 81 80 80 79 85 85 82 83 84 85 86 87 86 86 ...
$ }: j4 T' h. A# @) e6 d' _+ p) y 85 85 85 83 79 81 83 83 84 82 80 80 80 80 84 81 80 76 71 70 70 69 69 68 ...9 t! C8 |% V, d* ? n; z! j( a1 J
67 68 68 68 67 68 68 70 70 72 72 71 69 68 68 68 67 68 67 66 67 67 67 66 ...
' Q/ i& Q+ N$ H3 Z8 o 65 66 65 62 60 60 59 59 59 59 65 66 63 65 68 68 68 68 69 73 74 71 71 69 ...- M- d/ x/ \; Q' \
71 72 72 76 76 74 77 80 82 80 78 80 80 80 80 81 80 79 77];) z( Y, d o6 A3 e" K, h6 K. a9 m
T=today-length(P)+1:today;
/ m5 f* Q# B1 K Y={today-[13 74],today-[142 172]};) D7 {/ }2 g2 h* r w1 V& ?: h+ h
G={today-[30 51]};
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% PLOT THE DATA
; e1 c, i* P- E/ |; ~3 v plot(T,P);
0 O- c s+ _1 r2 s! y datetick;
5 M# c3 P' r& i b line(get(gca,'Xlim'),[80 80]): v9 n7 y$ Z: s1 k5 y! S
line(get(gca,'Xlim'),[68 68])%& [$ ~ r4 M+ ~% e4 N
title({'ShadePlotForEmphasis','(P<80 yellow, P<68 green)'});
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, U$ j7 N1 N; i % DRAW SOME YELLOW BARS- W$ k, `8 ~% n3 C( L5 ~' n
ShadePlotForEmpahsis(Y,'y',0.5);
% p$ @# x* }- j( S! G( w. D- v 0 W3 ?: @( S/ r4 P- Y6 l8 @8 ?
% DRAW A GREEN BAR
6 J3 d, G3 f& G7 p* {1 w% M" |1 w ShadePlotForEmpahsis(G,'g',0.5);
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+ e" Y& z! Q3 M, i | ## _#__/
% Y9 Y9 |/ m( M | ## / #
, [2 T) c& q* r& S | ## / #
* q+ I+ V) N- f- [& A+ P+ j: l | /#_/ #
. g/ d" p. r6 B! x+ W$ E: | |/ ## #
3 G3 ~8 m3 O% m! c" N |__##_____#_____# `. {: l9 x* T7 f \/ e" _; i9 }
4 _# T- s2 z0 ^8 n IT'S NOT FANCY BUT IT WORKS% t4 `' J4 y. |0 l; s1 p
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运行结果如下:
# B9 u/ q8 J' v; w5 N3 `(如果提示today没有定义的话,在开头加一句today=now)
+ S$ ^3 z6 ^1 a- ^( @) x
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$ V) J) w# t7 ~8 U. H/ A
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