Plotting an array of string as X-axis and an array of numbers as y-axis?

Question

Abhiruchi Rathi 2019-10-24

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回答： Akira Agata 2019-10-25

I have a column of strings in the form of quarters given by- 1960:1, 1960:2, 1960:3, 1960:4, 1961:1, 1961:2...1997:2 and a column of numbers. How do I plot the two on the same graph such that the strings correspond to the numbers and the strings feature on the x-axis?

1960:1 0.434216

1960:2 0.389105

1960:3 0.430663

1960:4 0.343053

1961:1 0.213675

1961:2 0.255864

.

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Answer 1

Akira Agata 2019-10-25

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https://ww2.mathworks.cn/matlabcentral/answers/487309-plotting-an-array-of-string-as-x-axis-and-an-array-of-numbers-as-y-axis#answer_398135

在 MATLAB Online 中打开

data.txt

Assuming your data was stored in the attached format, I think there should be at least following 2 solutions:

% Read data
data = readcell('data.txt');
% [Solution1] Use datetime vector
Time = datetime(data(:,1),'Format','yyyy:Q');
figure
plot(Time,cell2mat(data(:,2)))
% [Solution2] Replace XTickLabel
figure
plot(cell2mat(data(:,2)))
ax = gca;
ax.XTick = 1:size(data,1);
ax.XTickLabel = data(:,1);