（1）画竖直的errorbar, P1 Z" z I8 h8 b4 p% }# j
例子：
. b* c3 Q2 Q; O0 L, R2 e4 |close all;figure; _, h$ z! b" A
h=bar(volume_month_mean./1e6); %--volume_month_mean 为12×2的矩阵
2 g7 z$ ]& N8 T V( h: p set(h,'BarWidth',0.9);/ b2 X! \: f% y# R/ c9 _/ N) N
hold on;
, ~6 n! Q, M/ K- H" p* R- i set(h(1),'facecolor',[139 35 35]./255) %--设置bar的颜色
- D# k% K4 b: {; S; ^( g set(h(2),'facecolor','k')
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ngroups = size(volume_month_mean,1);, g. p+ V7 k% C/ `) L, Z; ~7 a
nbars = size(volume_month_mean,2);/ _, ^4 H; x1 {% V! H/ S( U1 M P
groupwidth =min(0.8, nbars/(nbars+1.5));
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& Z1 L8 n+ ~# F( | hold on;/ l+ b! l4 B8 {* K$ U- D
for i = 1:nbars %--画errorbar8 w" \! P1 z5 X2 Z0 ^
x = (1:ngroups) - groupwidth/2 + (2*i-1) * groupwidth / (2*nbars);
& d2 {$ B* O% u! Z5 u8 |1 R% x errorbar(x,volume_month_mean(:,i)/1e6,volume_month_std(:,i)/1e6,'o','color',[.5 .5 .5],'linewidth',2);
" G) W% B/ [+ F! ? end
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for n=1:12. K6 M" o5 s, l. K' y
if n<=99 H8 Q: o1 O8 Y* H
time_lab{n,1}=[&#39;0&#39; num2str(n)];
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time_lab{n,1}=num2str(n);
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end
. p3 \5 W# [" P9 |/ g6 d2 zset(gca,&#39;XTickLabel&#39;,time_lab,&#39;fontsize&#39;,14,&#39;linewidth&#39;,2)& _2 b" I$ f( E8 N: t
ylim([-0.5 2.5])
6 n" M7 V7 G' w9 e5 K; u! _ xlim([0 13])) J/ Q. t5 J" u! ~( L/ u4 l0 F2 k
set(gca,&#39;ytick&#39;,-0.5:0.5:2.5)/ f1 E+ Y$ q W, f7 g# x* v
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（2）画水平errorbar
- |9 c, J/ s7 W1 u( k: ^例子：
0 E! f- G4 t$ F: ~; d* | cclose all;figure;& U( t6 B2 k/ V' K2 T/ n
h=bar(volume_mean./1e6); %--volume_mean是4*2的矩阵
; U/ o* s2 C5 p set(h,&#39;BarWidth&#39;,0.9);" F& p. F# V% t/ ?; w0 P; `
hold on;( w6 ~0 v/ f" Y4 S r' v
set(h(1),&#39;facecolor&#39;,[139 35 35]./255)
- C; J. P3 s* l' z# A8 Z set(h(2),&#39;facecolor&#39;,&#39;k&#39;), u, V2 K% l; V" A2 C" `- E
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- h/ {6 ]; d5 w& D& _' ~ ngroups = size(volume_mean,1);) H$ ]" C( {0 q2 {
nbars = size(volume_mean,2); h# k6 t! X7 q
groupwidth =min(0.8, nbars/(nbars+1.5));
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hold on;
" g5 \7 d5 [. @/ h' _, x for i = 1:nbars
9 ]7 a9 S$ z4 S+ r x = (1:ngroups) - groupwidth/2 + (2*i-1) * groupwidth / (2*nbars);
i3 z: Z( }; o+ ^ i3 m+ R" C k: R errorbar(x,volume_mean(:,i)/1e6,volume_std(:,i)/1e6,&#39;o&#39;,&#39;color&#39;,[.5 .5 .5],&#39;linewidth&#39;,2);. C2 x0 o1 l0 i1 u# }! K
end& Q$ c4 q; I. }" U( Z$ ^& u- X
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view(-90,90)
) \ t6 c8 `9 a! U% G; M 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)
7 \- k5 ]2 ^* q& z/ x0 E2 x" \ ylim([-0.5 2.5])
7 w2 {6 @1 k- P& `: I$ j set(gca,&#39;ytick&#39;,-0.5:0.5:2.5)
$ H$ S: E' w3 j9 E. L! V ye_xylabel(gca,&#39; &#39;,&#39;Volume[Sv]&#39;)+ o" m: B& P/ C$ Z
legend(&#39;A&#39;,&#39;B&#39;,&#39;location&#39;,&#39;NorthEast&#39;)+ @+ N3 m! _$ e% i0 G/ B, e' f
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