MATLAB: How to use datetick

date tick.

hi,….i hve a file…first column is date and time second is data.file attached i using following code..it showing me error…i dont know why.and more over i want date tick at regular 3 month interval…not randomly…
x= vcdmean(:,1);
y = vcdmean(:,2);
plot(x,y,'.')
datetick('x', 'mmm YYYY')

Best Answer

q=datevec(x)
[~,ii]=unique(q(:,1:2),'rows')
a=q(ii,:)
a=a(1:3:end,:)
xt=datenum(a)
plot(x,y,'.')
set(gca,'xtick',xt)
datetick('x', 'mmm YYYY','keepticks')
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