discontinuous stairs graph plot

Hello,

I would like to draw a graph using the discontinuous stairs where each point of the x axis represents a window. Each window starts as the following values:

Window_start=[ 1 416 496 497 702 703 704 707 739 740 742 743 1210 1574 1576 1583 1612 1650 1661 1687 2140 2236 2275 2470 2471]

and ends at the following values:

window_end=[1145 1170 1181 1184 1186 1195 1477 1480 1481 1500 1503 2082 2084 2086 2088 2098 2106 2112 2121 3186 3190 3198 3199 3202 4414]

The axis Y will be :

m_parameter= [2.06460150132812 2.02860836558769 2.01831024458700 2.00996892134879 2.08112665007345 2.08876924524156 2.05401823379362 2.04658117995847 2.05176206925603 2.05414798422655 2.05414624420764 2.06747745140798 2.07595643180192 2.04360793910280 2.04929503241671 2.05992930797909 2.04443363843455 2.05767243908497 2.04788211903293 2.02442415285694 2.04804646336094 2.05896936615501 2.05602938713115 2.00893004802126 2.00444396213057]

Does anyone have an idea obout how to do it? does the data in the axis x considered as category ?

Answer 1

[Cris LaPierre]

I think the trick here is to realize that MATLAB will treat each column as a separate data series, so orgainze each step (start and stop X and Y values) into columns. Perhpas something like this.

Window_start=[ 1	416	496	497	702	703	704	707	739	740	742	743	1210	1574	1576	1583	1612	1650	1661	1687	2140	2236	2275	2470	2471];
window_end=[1145	1170	1181	1184	1186	1195	1477	1480	1481	1500	1503	2082	2084	2086	2088	2098	2106	2112	2121	3186	3190	3198	3199	3202	4414];
m_parameter= [2.06460150132812	2.02860836558769	2.01831024458700	2.00996892134879	2.08112665007345	2.08876924524156	2.05401823379362	2.04658117995847	2.05176206925603	2.05414798422655	2.05414624420764	2.06747745140798	2.07595643180192	2.04360793910280	2.04929503241671	2.05992930797909	2.04443363843455	2.05767243908497	2.04788211903293	2.02442415285694	2.04804646336094	2.05896936615501	2.05602938713115	2.00893004802126	2.00444396213057];

plot([Window_start;window_end],[m_parameter;m_parameter])

[youcha]

Thank u so much. Could you please explain to me how does the plot( [a ; b], [c,c] ) works?

[Cris LaPierre]

See Ch 4 of MATLAB Onramp on creating arrays and matrices.