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282 Chapter 6. Function Reference
This function differs from the interpolate function in that it can handle zero order
hold type interpolation and deal with irregularly spaced input pdms. Irregularly spaced
output pdms can be generated with the domspec syntax. These features are often useful
when dealing with data generated from experiments.
Example
time = [0:1:5]
u = gstep(time,time,time)
u1 = interp(u,0.25,{order=0})
time2 = sort(5*random(20,1))
u2 = interp(u,time2,{order=1})
gph1 = ctrlplot(u2, {marker=1,marker
style=1,...
marker
size=1,line=0}); gph1 =
plot(u1,gph1,{marker=1,marker
style=6,...
marker
size=1,line=0}); gph1 =
plot(u,gph1,{marker=1,marker
style=9,...
marker
size=1,line=0}); gph1 = plot(gph1,{legend=["1st
order interp.";...
"0 order interp.";"original pdm"] } )?