MATLAB: How to plot graph with annual x-axis

plottime seasonal.

Please, I want to plot a graph with annual values on the x axis. Exemple, year=[1970 1971 1971 1971 1972 1972 1972 1973 1973 1973 1974 1974]; x=[-30.23 -3.21 -57.54 26.22 49.02 -19.91 -63.42 7.33 37.96 21.32 35.49 22.30];
plot(x); the graph is correct. but the x-axis ranges from 0 through 12.
plot(year,x); o grafico não perece correto.
what's wrong with using plot(x) and plot(year,x)? how to solve this problem?
Note: year=[1970 1971 1971 1971 1972 1972] month=[DEC JAN FEV DEC JAN FEV …] seasonal values, the summer period.
Thank you for listening.

Best Answer

plot(x)
c = 2 : 3 : 12;
set(gca,'XTick', c, 'XTickLabel', year(c))
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