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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:
/ T0 G3 r: E! b% x: |9 KShadePlotForEmpahsis
2 H! k- j$ j) p' B( O Plots a shaded bar for emphasis as commonly seen on cconomic charts$ o9 y% H4 S; W; S* s6 A& a
% Q; E! d2 A* E4 X* M g INPUTS:3 v8 Y2 L1 y, r8 g! U
x where the bar is placed. If you want a bar from x=4:8 then
3 q# {/ e, j; p0 Z. S use [4 8]. If you want x=[4:8,10:20] then use {4:8,10:20}) s2 m/ [' l% Y- ~5 p6 r
colors Use 'y' to make all bars yellow. Use {'y','g','r'} for7 [) h3 p0 p7 `5 i N2 S9 t9 j
yellow, green and red bars.
$ n6 I `% c: ~( }* Z2 v8 a$ F alphas Use 0.5 if you want all bars to be translucent. Use {0,.5,1}5 ~7 G) { P* t, v/ z* q- X; \3 K, [
for transparent, translucet and opaque bars.1 A1 V. \) L$ _! V6 s. v8 I
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USAGE:; j' W/ Y! F6 {& q. {. v( T
% DEFINE DATA
/ L4 R" ^/ C0 u0 z P=[ ...
, b) ]: H5 m \, o 98 98 94 91 84 83 82 87 88 89 91 91 90 89 89 90 91 91 87 86 87 84 79 80 ...
2 P- {* f: L5 M9 y, Q8 K 85 86 86 85 93 93 93 93 97 97 95 93 93 94 95 96 96 92 89 90 91 91 91 92 ...
* B$ X% Y; _% Z' o% e 93 95 99 98 99 97 95 95 94 90 92 93 93 95 94 95 93 92 92 92 91 90 89 89 ...
@# L3 y, L! E4 _( 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 ...1 H8 t+ ]4 X& K3 ?, t
81 79 77 77 78 77 78 79 79 81 81 81 78 78 78 78 77 78 79 79 79 79 81 85 ...# R- Q9 h! ~0 T$ [) 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 ..., h5 r; _5 w: h4 E) z* P1 i. f
82 81 81 82 81 80 82 81 79 80 81 80 80 79 85 85 82 83 84 85 86 87 86 86 ... A7 B# }: H( R$ A% [' U: z
85 85 85 83 79 81 83 83 84 82 80 80 80 80 84 81 80 76 71 70 70 69 69 68 ...& J& b9 z6 b# u) M9 B4 @
67 68 68 68 67 68 68 70 70 72 72 71 69 68 68 68 67 68 67 66 67 67 67 66 .... W; _2 N5 D0 l) u: ]9 H
65 66 65 62 60 60 59 59 59 59 65 66 63 65 68 68 68 68 69 73 74 71 71 69 ...
5 d( _4 q Y3 T 71 72 72 76 76 74 77 80 82 80 78 80 80 80 80 81 80 79 77];5 J! C H6 H5 \6 g
T=today-length(P)+1:today;
I3 y5 A1 {1 M, L% V Y={today-[13 74],today-[142 172]};9 X+ G! P" u" H/ T! u* S
G={today-[30 51]};3 H4 ]2 I- a/ W9 g( B' H
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% PLOT THE DATA0 E- ]: q0 E7 D; T4 M; k6 _
plot(T,P);- l# B4 P* w6 A9 z4 E+ @/ y
datetick;- J: P5 U& Z/ H9 o7 V$ J: t0 q
line(get(gca,'Xlim'),[80 80])3 y5 |1 d1 r4 x" X5 U: q: d+ Q* ?: q3 ~
line(get(gca,'Xlim'),[68 68])%
& {$ A9 |" j) a& j/ P title({'ShadePlotForEmphasis','(P<80 yellow, P<68 green)'});
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1 A* F% G" m6 P; X# u % DRAW SOME YELLOW BARS
, a$ D- }0 P2 R( U! t ShadePlotForEmpahsis(Y,'y',0.5);# s0 C' ?- [# \* Z7 `# t2 Y
p+ C$ I |6 W8 j6 D- F! P" ? % DRAW A GREEN BAR
" }& i/ n& X* k/ x! n" S ShadePlotForEmpahsis(G,'g',0.5);
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3 A% O8 ?8 G" a8 w2 U. ] 9 _4 J9 x5 Z a0 ] P B# e
| ## _#__/7 i s H3 i4 v: M+ B+ [1 c/ K
| ## / #
) }3 ], |2 s( B+ _$ { | ## / #
- a N: i" ^( H | /#_/ #
! x/ O1 M8 q. x0 r! O |/ ## #
" m9 ?( o' m- B' I ^ |__##_____#_____& j' _6 c5 j# d( j( `& e) A0 [; R
$ F' z P& X6 Q& l7 G IT'S NOT FANCY BUT IT WORKS& H& R/ l) q. S: r3 M# s
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: s8 {$ }" J( s8 ^" K* Z运行结果如下:
9 `5 A: @% y1 [% E& W5 p. ?4 ^(如果提示today没有定义的话,在开头加一句today=now)
! T0 O9 x' l6 `9 `8 ?1 ~$ D t3 i6 W, P8 n3 v
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