Plotting Binary step function

How to plot the following step function function by avoiding vertical lines between discontinuities

x=[-10,10]

y=sin(x)

z=1 if y<0

z=0 if y>=0

plot(x,z);

Answer 1

[Robert U]

Hi Linu Pinto,

You could plot each section separately.

x = -10:0.1:10;
y = sin(x);

z(y<0) = 1;
z(y>=0) = 0;
nZNew =[0 find(diff(z) ~= 0) length(z)];

zNew = arrayfun(@(nStart,nEnd) z(nStart+1:nEnd),nZNew(1:end-1),nZNew(2:end),'UniformOutput',false);
xNew = arrayfun(@(nStart,nEnd) x(nStart+1:nEnd),nZNew(1:end-1),nZNew(2:end),'UniformOutput',false);

fh = figure;
ah = axes(fh);
hold(ah,'on');
cellfun(@(xIn,zIn) plot(xIn,zIn,'-blue'),xNew,zNew)

Kind regards,

Robert