Plotting weather graphs so subsequent years are superimposed rather than sequential

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Wendy Cameron
Wendy Cameron 2019-2-5
回答： KSSV 2019-2-5
I have many years of weather data to plot. At present the data is all in one long column. But I don't want the graph to be one long graph, I want each different year of data to be superimposed on the same axis so I can make comparisons from year to year.
Some sample data is attached.
Much appreciated.
Wendy

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回答（1 个）

KSSV
KSSV 2019-2-5
T = readtable('Matlab graph question.xlsx') ;
theyears = year(T.(1)) ;
[c,ia,ib] = unique(theyears) ;
c(isnan(c)) = [] ;
% plot 2018 year data
idx = theyears==2018 ;
plot(T.(1)(idx),T.(2)(idx))

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