Date Axis

Question

KKR 2011-10-8

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/17791-date-axis

Hello Everyone,

Hope all is well. I need some help regarding, setting up Dates on x-axis. I have about 195 data points, and of course, I would like only 10-15 dates to show up on axis, as labels. Here is what I have tried to do, but somehow it is not working.

    startDate = datenum('01-01-1995');
    endDate = datenum('12-31-2010');
    numtick = round((endDate - startDate)/365);
    xData = linspace(startDate,endDate,numtick);
    hold on
    grid on
    set(gca,'XTick',xData)
    set(gca,'XTickLabel',datestr(xData,12))
    p1 = plot(winmeanav,'-r');
    p2 = plot(spxnav,'.-g');
    p3 = plot(sprnav,'-k');
    title('Time Series plot of NAVs between 1/1/1995 and    
    12/31/2010')
    xlabel('Number of Months passed since 1/1/1995')
    ylabel('NAVs')

Please let me know, if any extra information is needed. Any help would be very appreciated.

Thanks,

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Answer 1

Walter Roberson 2011-10-8

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https://ww2.mathworks.cn/matlabcentral/answers/17791-date-axis#answer_23978

In your linspace() use numtick+1 .

For example suppose there was a difference of 1 year, 365 days. The serial date difference would be 365, round(365/365) would be 1, and then your current code would try to represent that 1 year range as a single value whereas you want one for the beginning and one for the end.

Also, you might have to cellstr() around the datestr() call.