（1）画竖直的errorbar( S* f: W, M2 f
例子：
5 C9 j# k" ~9 @; F Q% ?4 P0 j5 ]5 Aclose all;figure;
( U# y- s+ X1 D! T h=bar(volume_month_mean./1e6); %--volume_month_mean 为12×2的矩阵4 U# l3 D* b8 s! ^( N1 i, z
set(h,'BarWidth',0.9);* i7 k5 B" {& [& O( w0 e3 T2 `7 o
hold on;
% p1 R9 l. M' ]( z F. E! b set(h(1),'facecolor',[139 35 35]./255) %--设置bar的颜色
9 V5 O+ e* ^& j" r- a; z) { set(h(2),'facecolor','k')
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ngroups = size(volume_month_mean,1);
( ~% Q! q$ ~+ K9 U& M, X nbars = size(volume_month_mean,2);
+ [) D+ W ^' m. z groupwidth =min(0.8, nbars/(nbars+1.5));0 n% \' Y9 E) U0 A
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S; C e4 J5 _' g; _6 ^ hold on;
! a- u9 Y: m+ @8 S( q for i = 1:nbars %--画errorbar, m% H4 U% v$ ]1 W
x = (1:ngroups) - groupwidth/2 + (2*i-1) * groupwidth / (2*nbars);. r! s% i- `6 E2 a) o
errorbar(x,volume_month_mean(:,i)/1e6,volume_month_std(:,i)/1e6,'o','color',[.5 .5 .5],'linewidth',2);. b+ D l& p* K# ~ F1 T- @
end
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2 T- O3 Z- @- Y for n=1:12
7 e \0 [+ s z# J% j" o, J- n2 S5 G if n<=9
% p# K. [( p1 [$ p time_lab{n,1}=[&#39;0&#39; num2str(n)];9 u! @# {9 s% z6 t, f
else8 ~% o/ F( Y9 M) D/ K5 `5 \
time_lab{n,1}=num2str(n);
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end& W, l' E/ Y0 I9 X. @8 g0 t v
set(gca,&#39;XTickLabel&#39;,time_lab,&#39;fontsize&#39;,14,&#39;linewidth&#39;,2)
9 T' H0 u6 \2 Y- a, D5 a+ o6 S5 _ ylim([-0.5 2.5])
4 E$ `4 G" {4 J: @) ?8 @4 I xlim([0 13])( p$ F4 y+ n$ R8 z
set(gca,&#39;ytick&#39;,-0.5:0.5:2.5)' {2 z/ Y+ s$ U3 ]$ O7 l+ {0 @
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（2）画水平errorbar- e; K* f# l; r8 I u
例子：
6 v( B! D2 c) ^" [, qclose all;figure;6 Z+ w, k- i( _4 I* y7 |
h=bar(volume_mean./1e6); %--volume_mean是4*2的矩阵6 S/ @5 i3 W% \3 e& w1 B" d1 u
set(h,&#39;BarWidth&#39;,0.9);
- X4 f6 O& O) ^. t- L1 Q e& ~. M- J$ T hold on;
- {' |, o! m' p! E$ S$ ~$ h/ s; c set(h(1),&#39;facecolor&#39;,[139 35 35]./255)5 K6 ?; `6 P" m* |
set(h(2),&#39;facecolor&#39;,&#39;k&#39;)2 ?+ a$ z' _ }# T( F+ D* a: A
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$ z% I+ }. \3 E ngroups = size(volume_mean,1);
& v* R5 R) S! j4 y2 V7 J# E, f nbars = size(volume_mean,2);
B' [7 g1 N0 H* s; Z5 _' F groupwidth =min(0.8, nbars/(nbars+1.5));7 w, v- I- N/ w6 D# y$ S
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hold on;/ ], t! m0 \; E, V) u ~! \
for i = 1:nbars
: Q+ b7 }8 [- @ x = (1:ngroups) - groupwidth/2 + (2*i-1) * groupwidth / (2*nbars);7 ^0 |0 c8 l5 ], a
errorbar(x,volume_mean(:,i)/1e6,volume_std(:,i)/1e6,&#39;o&#39;,&#39;color&#39;,[.5 .5 .5],&#39;linewidth&#39;,2);
- C0 J9 x$ A; H end
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view(-90,90)+ S; Y" G' ^8 W# b5 B' ~& z+ 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)- Z0 e# H3 ^" `8 T4 R# `0 s, E
ylim([-0.5 2.5])6 C. E: r( {0 k8 u1 \+ l9 ~
set(gca,&#39;ytick&#39;,-0.5:0.5:2.5)
/ }' G' N; j7 S# U ye_xylabel(gca,&#39; &#39;,&#39;Volume[Sv]&#39;): |) I: j1 j# ^+ ~; `
legend(&#39;A&#39;,&#39;B&#39;,&#39;location&#39;,&#39;NorthEast&#39;)5 H/ n- c5 T6 Y( i7 H0 _
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