Hi,
I intend to do a chart with two yaxis, the code is the following:
dates=datenum(dataSet(:,1));%SPX
SPX=dataSet(:,2);%VIX
VIX=dataSet(:,3);plotyy(dates,SPX,dates,VIX);%datevc divides the date in different columns, first colum is the year,
%second the month and thrid the day
d=datevec(dates);%Takes just the year (first column)
d=d(:,1);%takes every year just once
[a,idx]=unique(d(:,1),'first');ylabel('VIX');set(gca,'xtick',dates(idx),'xticklabel',a)ytix = get(gca,'YTick');set(gca,'YTick',ytix(2:end));
This is working but unfortunately besides the years I have also the numeric date displayed on the x axis, how can I change that?
is there a way to make both y axis black instead of blue and green?
Best Answer