# How can I add recession bars to a time series plot?

조회 수: 15 (최근 30일)
Sabarna Mukherjee 2023년 9월 21일
댓글: Sabarna Mukherjee 2023년 9월 23일
Actually, I want to plot variable x against quarters from 2001Q1 to 2023Q1 and then add shaded recession bars to the plot. In the attached file I also have the U.S. nber recession indicator which is a dummy variable. 1 meaning recession and 0 meaning no recession.
The MATLAB codes I have written are as:
function rescode1;
qdates = data(:,4);
usrecq = data(:, 2);
x = data(:,3);
figure;
for i= 1:length(usrecq);
if usrecq==1;
recessionplot;
end;
end;
hold on;
plot(qdates,x, '-', 'LineWidth',2);
title('Time series plot of x');
xlabel('Quarters');
ylabel('Y axis');
ax = gca;
ax.XAxis.TickLabels = ({'2001q1','2002q1','2003q1','2004q1','2005q1','2006q1','2007q1','2008q1','2009q1','2010q1','2011q1', '2012q1','2013q1','2014q1','2015q1','2016q1','2017q1','2018q1','2019q1','2020q1','2021q1','2022q1','2023q1'});
xticks([1 5 9 13 17 21 25 29 33 37 41 45 49 53 57 61 65 69 73 77 81 85 89])
Using the above code I cannot generate the recession bars.
Need some suggestions.
Thank you.

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### 채택된 답변

Chunru 2023년 9월 21일
편집: Chunru 2023년 9월 22일
y = data.var3; x=data.quarters; r = data.usrecq;
plot(x, y, '-', 'LineWidth',2)
hold on;
yl = ylim;
xr = x(r>0.5);
yr = yl(2)*ones(size(xr));
width = 1;
bar(xr, yr, width, 'FaceColor', [0.8 0.8 0.8], 'EdgeColor', 'none', ...
'BaseValue', yl(1), 'FaceAlpha', 0.3);
%bar(x(r>0.5), y(r>0.5))
ylim(yl)
title('Time series plot of x');
xlabel('Quarters');
ylabel('Y axis');
ax = gca;
ax.XAxis.TickLabels = ({'2001q1','2002q1','2003q1','2004q1','2005q1','2006q1','2007q1','2008q1','2009q1','2010q1','2011q1', '2012q1','2013q1','2014q1','2015q1','2016q1','2017q1','2018q1','2019q1','2020q1','2021q1','2022q1','2023q1'});
xticks([1 5 9 13 17 21 25 29 33 37 41 45 49 53 57 61 65 69 73 77 81 85 89])
##### 댓글 수: 3이전 댓글 1개 표시이전 댓글 1개 숨기기
Chunru 2023년 9월 22일
See the modification above.
Sabarna Mukherjee 2023년 9월 23일
Thank you so much for your help and suggestions. The code worked!

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