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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:
# S8 c( w5 `( E$ w- G9 T% |ShadePlotForEmpahsis
3 [& f. m4 ]; V: ]3 a+ b: x1 o Plots a shaded bar for emphasis as commonly seen on cconomic charts
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: T; O/ R% f2 l7 W# W8 { INPUTS:2 \& m& F4 n# a
x where the bar is placed. If you want a bar from x=4:8 then4 A; Z+ M+ n. A* K# F
use [4 8]. If you want x=[4:8,10:20] then use {4:8,10:20}
$ X3 i; Q( U- G2 C) ` colors Use 'y' to make all bars yellow. Use {'y','g','r'} for, w3 t) I- K# k s7 L3 K, ~, W0 o9 G
yellow, green and red bars.
4 y/ h0 M; J( D7 e alphas Use 0.5 if you want all bars to be translucent. Use {0,.5,1}" d3 x0 [( D" h: W
for transparent, translucet and opaque bars.1 o T9 w; C) U% @2 R1 X
# o6 U; t u5 K: z1 s USAGE:# l0 h( ~, G" w: z
% DEFINE DATA; t' V8 Y0 a6 X
P=[ ...
; Q" ?7 B3 T6 M5 e8 G' Z: H 98 98 94 91 84 83 82 87 88 89 91 91 90 89 89 90 91 91 87 86 87 84 79 80 ...
; @( L) G- s3 I 85 86 86 85 93 93 93 93 97 97 95 93 93 94 95 96 96 92 89 90 91 91 91 92 ...
! v9 |% B0 f$ F" b) ^# |, [ 93 95 99 98 99 97 95 95 94 90 92 93 93 95 94 95 93 92 92 92 91 90 89 89 ...
0 h; L |" ~, d; S" X5 S 90 89 90 89 88 84 84 83 84 85 85 84 82 82 82 79 80 79 80 78 78 81 83 82 ...# `* b+ Q' s, ^7 t6 H) k
81 79 77 77 78 77 78 79 79 81 81 81 78 78 78 78 77 78 79 79 79 79 81 85 ...
7 j6 ?2 r) _! T. Z* H, b3 \% N 86 86 86 87 85 84 85 86 88 88 90 88 88 87 86 86 85 87 87 87 86 85 84 83 ...
8 a& _6 A. f. {! _0 K 82 81 81 82 81 80 82 81 79 80 81 80 80 79 85 85 82 83 84 85 86 87 86 86 ...
# `. n& |5 j) L7 |, o5 W8 G 85 85 85 83 79 81 83 83 84 82 80 80 80 80 84 81 80 76 71 70 70 69 69 68 ..., d6 ~. v% }+ { K2 ^
67 68 68 68 67 68 68 70 70 72 72 71 69 68 68 68 67 68 67 66 67 67 67 66 ...
, c2 f$ j) j( a! b/ X 65 66 65 62 60 60 59 59 59 59 65 66 63 65 68 68 68 68 69 73 74 71 71 69 ...
3 W) z* _, ~- X6 W 71 72 72 76 76 74 77 80 82 80 78 80 80 80 80 81 80 79 77];
/ r. w* ~- q T4 w+ \2 N0 P T=today-length(P)+1:today;
# y$ k1 K: J" k0 o( B2 Y& O Y={today-[13 74],today-[142 172]};/ M5 o" A. G7 r$ c6 M: b
G={today-[30 51]};. G p$ x8 q1 O* O2 |
4 n; s w9 t5 q3 j! ]& r( x: y6 ~6 {- a3 t % PLOT THE DATA9 c; t7 N8 L7 _' S, c
plot(T,P);
' X( R: H& y% e9 |4 R' n$ z datetick;
) Q4 q( A+ l6 ~" F. z; F" |; k line(get(gca,'Xlim'),[80 80])
, a8 ^# d" M4 u' {$ w line(get(gca,'Xlim'),[68 68])%
[3 d; u, w7 g% E title({'ShadePlotForEmphasis','(P<80 yellow, P<68 green)'});
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% DRAW SOME YELLOW BARS
( O3 C' t. Q6 B- Z2 O$ R0 ? ShadePlotForEmpahsis(Y,'y',0.5);# e( o8 }1 u. R( k' c
2 {$ d- N& r/ [- ^ A$ h/ n: D % DRAW A GREEN BAR" n9 X7 U/ @+ |, ]$ z
ShadePlotForEmpahsis(G,'g',0.5);" v4 v/ u5 r' T u& D- S
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| ## _#__/# f3 J! u4 ?% y9 a: a, g% L
| ## / #
5 V( q" A) Q8 \+ Y | ## / #
5 Q4 {2 U3 t5 R: s/ R% x | /#_/ #% _- P6 ?% ^: r6 U8 E
|/ ## #
O0 j/ T! R3 W& `" w- e% M1 b |__##_____#_____
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IT'S NOT FANCY BUT IT WORKS& m7 I: r# T' ~# }- ?7 ]6 V
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运行结果如下:
7 }9 z0 ?5 Q7 v+ Q8 b7 s) o5 \) H- E(如果提示today没有定义的话,在开头加一句today=now)
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5 B, ]. Y( D# X# B! [! j) S
5 }5 a$ d2 M3 A4 @8 `2 ^0 W |
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