（1）画竖直的errorbar
) @" E8 w+ u3 e4 U! R' U) i; J例子：
2 J3 D I* u6 d& S2 a7 e2 ?close all;figure;
2 f( B, m. x2 E1 o5 @ h=bar(volume_month_mean./1e6); %--volume_month_mean 为12×2的矩阵
! ^% f8 [4 W. p) Y4 b set(h,'BarWidth',0.9);
, G3 H* Y/ w# u, _# | hold on;% O' ]) E" w i4 Z" c3 ^$ e. g s
set(h(1),'facecolor',[139 35 35]./255) %--设置bar的颜色4 n0 u# z: i4 P# [' F; k2 F9 k" Z, `
set(h(2),'facecolor','k')
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ngroups = size(volume_month_mean,1);, T: [* H( g! Y8 E! H6 P
nbars = size(volume_month_mean,2);' X" V) R/ X: d& @' E3 c- w
groupwidth =min(0.8, nbars/(nbars+1.5));
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# C) ^: M0 H0 ]. M( T hold on;' @) r: k' }! ^4 E( _. x8 z( n% M7 M
for i = 1:nbars %--画errorbar+ p9 k+ p) ?8 g6 F6 q8 E
x = (1:ngroups) - groupwidth/2 + (2*i-1) * groupwidth / (2*nbars);
4 n5 B% M! \5 b% C4 s0 S0 A errorbar(x,volume_month_mean(:,i)/1e6,volume_month_std(:,i)/1e6,'o','color',[.5 .5 .5],'linewidth',2);
' | t C, W% p$ C" b O end
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for n=1:12* S# X6 O* S$ G1 ^5 q
if n<=9& m Q* f/ ?% B' s( H
time_lab{n,1}=[&#39;0&#39; num2str(n)];
! b/ ?! y8 c! X- L else
3 @& B2 f4 J8 u; G time_lab{n,1}=num2str(n); \% E% V+ \# b/ w7 Z( v K
end
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+ t$ E4 n; a+ {' U) h wset(gca,&#39;XTickLabel&#39;,time_lab,&#39;fontsize&#39;,14,&#39;linewidth&#39;,2)/ k j5 G8 X* B, F1 n. `% W
ylim([-0.5 2.5]): C4 U4 l% d$ ?0 c) Y5 J4 Z/ {
xlim([0 13])* `2 }5 p4 y7 }' I% b9 P8 l
set(gca,&#39;ytick&#39;,-0.5:0.5:2.5)
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（2）画水平errorbar
/ v' z9 K2 A9 R T( Q/ J0 }/ A例子：
: R5 G }! D6 O0 ?' m9 B( Q4 Nclose all;figure;2 e& m) H/ E/ B* Q1 E, K
h=bar(volume_mean./1e6); %--volume_mean是4*2的矩阵
( L3 @* u! }) P5 N4 K9 Q# { set(h,&#39;BarWidth&#39;,0.9);
8 L: m- N* K6 F; A9 @ hold on;
( o- y1 V9 m, p# Z+ f2 p set(h(1),&#39;facecolor&#39;,[139 35 35]./255)$ e7 i! y# f) t Q1 f# d, ~6 A/ l
set(h(2),&#39;facecolor&#39;,&#39;k&#39;)( ~$ P1 p, x: d" b
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) ^; F) X j. ? ngroups = size(volume_mean,1);3 N" h4 I( @/ V# l! h! X% d
nbars = size(volume_mean,2);1 `# ]& Z2 i' n& @0 f
groupwidth =min(0.8, nbars/(nbars+1.5));
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; _; {2 d- n6 m4 B* o hold on;
) l) X1 ]; o! u. i* q3 T for i = 1:nbars5 ]7 ]% W' i5 v0 J. u& P8 S- x
x = (1:ngroups) - groupwidth/2 + (2*i-1) * groupwidth / (2*nbars);
2 z m, P ~7 ?( U, c. [( Q# m* s errorbar(x,volume_mean(:,i)/1e6,volume_std(:,i)/1e6,&#39;o&#39;,&#39;color&#39;,[.5 .5 .5],&#39;linewidth&#39;,2);) t. U+ o( Y& r) |; G
end
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view(-90,90)1 ~; C* b# C8 r5 S) _5 }+ t
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 l2 U, W7 I+ Y- e# I+ `5 M3 G ylim([-0.5 2.5])* B$ e0 |) B( F
set(gca,&#39;ytick&#39;,-0.5:0.5:2.5)% v. ?% v5 d" U. Z
ye_xylabel(gca,&#39; &#39;,&#39;Volume[Sv]&#39;)
2 U3 h3 l/ N; ^- R) x `5 p9 J% O legend(&#39;A&#39;,&#39;B&#39;,&#39;location&#39;,&#39;NorthEast&#39;); {* z) ` a4 L: e+ T% X5 o' y
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