How to reshape the x-axis in this case?

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.

Answer 1

[Star Strider]

Either:

axis tight

or:

xlim([min(t) max(t)])

should work.

[Armando MAROZZI]

thanks!

[Star Strider]

As always, my pleasure!