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How to plot monthly values of precipitation over multiple years and have years plotted on x-axis

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Thomas Burbey
Thomas Burbey 2017-11-1
评论： KL 2017-11-1
I have a table with headings of year, month, and value where the value is the total precipitation of the month. I would like to make a bar chart that has the year plotted on the x-axis, but I'd also like to color-code each year's worth of data (12 bars, one for each month) to make it clear where one year starts and another ends. How do I do this?

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Thomas Burbey
Thomas Burbey 2017-11-1
How do I reshape my array that is in the form (year, month, data value): 1991, 1, 45.2 1991, 2, 84.3 1991, 3, 23.3 1991, 4, 97.1 ... 2016, 12, 17.4 Into the form jan feb mar apr may .... dec 1991 45.2 84.3 23.3 97.4 .... ... 2016 .... 17.4

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KL
KL 2017-11-1
reshape your data by keeping year on the rows, months on columns (hence, 12 columns and as many rows as many years you have), then you can simply call bar and add legend as your table variable names.
h = bar([yourtable.year; yourtable.year2]);
legend(h,yourTable.Properties.VariableNames);

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