How to plot years on x axis
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I have monthly mean temperature data for about 31 years from 1975-2005. Each year I am having 12 values. How to plot this data having years on x-axis.
The format of the data is shown below:
1975 -66.0577
1975 -66.3039
1975 -65.4235
1975 -66.6143
1975 -66.1449
1975 -70.4912
1975 -73.0337
1975 -73.8322
1975 -69.5114
1975 -65.6445
1975 -65.815
1975 -65.5371
1976 -63.9651
1976 -66.7147
1976 -66.5698
1976 -66.4407
1976 -66.4912
1976 -69.1049
1976 -71.5498
1976 -73.0278
1976 -70.1491
1976 -69.9583
1976 -68.8625
1976 -63.2717
采纳的回答
Star Strider
2019-1-21
A simple solution is:
M = [ 1975 -66.0577
1975 -66.3039
1975 -65.4235
1975 -66.6143
1975 -66.1449
1975 -70.4912
1975 -73.0337
1975 -73.8322
1975 -69.5114
1975 -65.6445
1975 -65.815
1975 -65.5371
1976 -63.9651
1976 -66.7147
1976 -66.5698
1976 -66.4407
1976 -66.4912
1976 -69.1049
1976 -71.5498
1976 -73.0278
1976 -70.1491
1976 -69.9583
1976 -68.8625
1976 -63.2717];
T = datenum([M(:,1) ceil(rem(1:size(M,1),12.1))', zeros(size(M,1),3) ones(size(M,1),1)]);
figure
plot(T, M(:,2))
datetick('x', 'yyyy')
xlim([min(T), max(T)])
Experiment to get the result you want.
8 个评论
Vivek
2019-1-22
Vivek
2019-1-22
When apply on long term data the figure comes like this....can you please explain the error.
Star Strider
2019-1-22
I have no idea what the error is.
It could be that some of the data are out of order, or perhaps some months were missing from your data.
Vivek
2019-1-22
Star Strider
2019-1-22
This works:
M = load('m.txt');
T = datetime(M(1,1),1,1) : calmonths(1) : datetime(M(end,1),12,1);
figure
plot(T, M(:,2))
xlim([min(T), max(T)])
Vivek
2019-1-23
Star Strider
2019-1-23
As always, my pleasure.
I should have done that to begin with, rather than creating my own vector.
Apostolos Ampountolas
2019-4-6
Unfortunately, it doesn't work for me.
I downloaded the file, copy, run the provided code, however I am always getting the same error:
Error using plot
Vectors must be the same length.
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