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How to reshape the x-axis in this case?

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Armando MAROZZI
Armando MAROZZI el 29 de Oct. de 2020
Comentada: Star Strider el 29 de Oct. de 2020
I have a chart (attached) that starts the sample in 2008 despite the actual data starts in 2009-01. I would like to understand why and correct it.
This is an example that replicates the issue:
t1 = datetime(2009,01,01);
t2 = datetime(2019,11,01);
t = t1:calmonths:t2;
t= datenum(char(t),'dd-mm-yyyy');
subplot(3,1,1)
% 1st shaded area
d1=datenum(datetime(2009,01,01));
d2=datenum(datetime(2009,06,01));
x=[[d1,d2],[d2,d1],d1];
y=[-[6,6],[6,6],[-6]];
fill(x, y, [0.7 0.7 0.7],'LineStyle','none', 'FaceAlpha', 0.2);
hold on
% 2nd shaded area
d1=datenum(datetime(2011,09,01));
d2=datenum(datetime(2013,03,01));
x=[[d1,d2],[d2,d1],d1];
y=[-[6,6],[6,6],[-6]];
fill(x, y, [0.7 0.7 0.7],'LineStyle','none', 'FaceAlpha', 0.2);
hold on
plot(t, randn(131,1), 'LineWidth',1,'Color', [0 0 0]);
ax.XTick = t(1:end);
datetick('x','yyyy','keepticks');
yline(0,'-')
ylabel('%')
title('Business Cycle Shock', 'FontWeight', 'Normal')
subplot(3,1,2)
% 1st shaded area
d1=datenum(datetime(2009,01,01));
d2=datenum(datetime(2009,06,01));
x=[[d1,d2],[d2,d1],d1];
y=[-[6,6],[6,6],[-6]];
fill(x, y, [0.7 0.7 0.7],'LineStyle','none', 'FaceAlpha', 0.2);
hold on
% 2nd shaded area
d1=datenum(datetime(2011,09,01));
d2=datenum(datetime(2013,03,01));
x=[[d1,d2],[d2,d1],d1];
y=[-[6,6],[6,6],[-6]];
fill(x, y, [0.7 0.7 0.7],'LineStyle','none', 'FaceAlpha', 0.2);
hold on
plot(t, randn(131,1), 'LineWidth',1,'Color', [0 0 0]);
hold on
ax.XTick = t(1:end);
datetick('x','yyyy','keepticks');
yline(0,'-')
ylabel('%')
title('Monetary Policy Shock', 'FontWeight', 'Normal')
subplot(3,1,3)
% 1st shaded area
d1=datenum(datetime(2009,01,01));
d2=datenum(datetime(2009,06,01));
x=[[d1,d2],[d2,d1],d1];
y=[-[6,6],[6,6],[-6]];
fill(x, y, [0.7 0.7 0.7],'LineStyle','none', 'FaceAlpha', 0.2);
hold on
% 2nd shaded area
d1=datenum(datetime(2011,09,01));
d2=datenum(datetime(2013,03,01));
x=[[d1,d2],[d2,d1],d1];
y=[-[6,6],[6,6],[-6]];
fill(x, y, [0.7 0.7 0.7],'LineStyle','none', 'FaceAlpha', 0.2);
hold on
plot(t, randn(131,1), 'LineWidth',1,'Color', [0 0 0]);
hold on
ax.XTick = t(1:end);
datetick('x','yyyy','keepticks');
yline(0,'-')
ylabel('%')
title('DFPA Shock', 'FontWeight', 'Normal')
In other words, I would like the grey bar to start in 2009 when my sample starts and not before.
Can anyone help me?
Thanks.

Respuesta aceptada

Star Strider
Star Strider el 29 de Oct. de 2020
Either:
axis tight
or:
xlim([min(t) max(t)])
should work.
  2 comentarios
Armando MAROZZI
Armando MAROZZI el 29 de Oct. de 2020
thanks!
Star Strider
Star Strider el 29 de Oct. de 2020
As always, my pleasure!

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