（1）画竖直的errorbar8 ?; E/ ~+ x3 B
例子：8 N# i5 q) ~# i
close all;figure;
- i# K4 n: _9 s h=bar(volume_month_mean./1e6); %--volume_month_mean 为12×2的矩阵: P2 s$ i) V. p& O7 q/ v
set(h,'BarWidth',0.9);
6 d8 G# a! L+ L2 g0 h hold on;
6 s! i/ Z6 F! e p4 m; { set(h(1),'facecolor',[139 35 35]./255) %--设置bar的颜色
$ C/ }$ W8 J2 ~/ T: V) ] set(h(2),'facecolor','k')1 P4 f }) I, ], `
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@, t4 l) E0 J- |( S2 [+ o5 s ngroups = size(volume_month_mean,1);: ]1 k4 N) _+ l) ^( p! v2 e
nbars = size(volume_month_mean,2);
Q l: M- K& d% ^ groupwidth =min(0.8, nbars/(nbars+1.5));+ n+ g1 Z, Z; ~4 _/ P9 M" S
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hold on;
* s- Z/ u! _: u3 @+ q for i = 1:nbars %--画errorbar# O) i8 C( u6 r; G: r
x = (1:ngroups) - groupwidth/2 + (2*i-1) * groupwidth / (2*nbars);+ u0 m6 c( Z( y! ]
errorbar(x,volume_month_mean(:,i)/1e6,volume_month_std(:,i)/1e6,'o','color',[.5 .5 .5],'linewidth',2);! O" K# \+ H8 A" a p
end+ `+ D( x) m/ t7 R8 L% F, N5 M
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for n=1:12
8 \* d7 p! W. a if n<=9
' R! Z) A5 T% g time_lab{n,1}=[&#39;0&#39; num2str(n)]; @9 |! \# H; }0 T7 h" S( ?
else+ o/ E& Z2 M1 k' G1 _! \3 R' M
time_lab{n,1}=num2str(n);
% X, i; Z/ Q7 ?- l' h/ ? end
/ D* Y8 \# @0 [# D end
# Q5 Q/ R. |( H. B# D5 xset(gca,&#39;XTickLabel&#39;,time_lab,&#39;fontsize&#39;,14,&#39;linewidth&#39;,2)
o# Y2 y6 E3 e; s _# T5 X9 W ylim([-0.5 2.5])8 { G6 `6 P: K' f5 c0 y7 m: m3 s7 F
xlim([0 13])- f3 h0 ` c* m1 Z& w# k% _5 K
set(gca,&#39;ytick&#39;,-0.5:0.5:2.5)
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* d7 J/ r0 v+ W) e/ S) d+ G5 Y5 u1 n( F/ U
（2）画水平errorbar
$ i4 h3 O9 }" n% H例子：3 ]' H, q. E R& `! S* [! a2 E
close all;figure;
# C2 `) T- O+ ?2 O, s6 G/ T/ W h=bar(volume_mean./1e6); %--volume_mean是4*2的矩阵
& m* N1 U: N( [2 J set(h,&#39;BarWidth&#39;,0.9);
+ M8 c+ s& }; G' g hold on;) _5 Q' G% u/ ?5 U5 c
set(h(1),&#39;facecolor&#39;,[139 35 35]./255)8 [# j# [9 M# n/ d% n' V$ p+ S
set(h(2),&#39;facecolor&#39;,&#39;k&#39;)
6 U8 E; W: R; N; ^* c
0 [' Y* T- Y4 W# @7 x% M! c' p5 r
ngroups = size(volume_mean,1);) z0 M% j1 ?5 F: j
nbars = size(volume_mean,2);
2 Z0 O4 r" e5 [3 X2 r9 b groupwidth =min(0.8, nbars/(nbars+1.5));
0 z) n& a6 A3 T" ?! G# H& i( I; \) }, u/ j2 z$ f3 V! T
! q! H, o; J/ V# J/ U. G \ hold on;, L( F: d4 @7 {
for i = 1:nbars
% q, N. k- }- i x = (1:ngroups) - groupwidth/2 + (2*i-1) * groupwidth / (2*nbars);3 M* E- g7 e: x7 E& \3 h
errorbar(x,volume_mean(:,i)/1e6,volume_std(:,i)/1e6,&#39;o&#39;,&#39;color&#39;,[.5 .5 .5],&#39;linewidth&#39;,2);
1 J3 T7 ?0 s z- [/ D4 t end
( f! D7 I( j( L! [( G5 r: @) X, W9 }4 M6 e! i
; O' o1 [7 c. O8 I4 R: @) N( P view(-90,90)* P9 x5 S& D) q3 b
set(gca,&#39;xdir&#39;,&#39;reverse&#39;,&#39;ydir&#39;,&#39;reverse&#39;,&#39;XTickLabel&#39;,{&#39;Winter&#39;,&#39;Spring&#39;,&#39;Summer&#39;,&#39;Autumn&#39;},&#39;fontsize&#39;,14,&#39;linewidth&#39;,2). `, h& o. f9 U: ~+ d/ V
ylim([-0.5 2.5])% O0 t% n3 [$ t1 a& `
set(gca,&#39;ytick&#39;,-0.5:0.5:2.5)$ z$ K2 @: g6 j9 z; {& g# w0 b m
ye_xylabel(gca,&#39; &#39;,&#39;Volume[Sv]&#39;)$ ]0 j! ^8 H! ?' K" A1 E( w; F
legend(&#39;A&#39;,&#39;B&#39;,&#39;location&#39;,&#39;NorthEast&#39;)/ [$ N7 t1 Q. S9 b& ]0 x" ]
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