Cómo personalizar una parcela función discreta en MATLAB?
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25-09-2019 - |
Pregunta
Me gustaría trazar valores discretos en MATLAB como esto:
stairs()
y stem()
hacer parcelas similares, pero puedo configurar uno de ellos para parecerse a la imagen de arriba?
http://www.mathworks.com/help/techdoc /ref/plottype-stairs.gif http://www.mathworks.com/help/techdoc/ref/ plottype-stem.gif
Solución
Hay que crear la trama mismo.
%# create some random data
data = randn(100,1);
%# sort ascending
data = sort(data(:)); %# make column vector, just in case
%# count
nData = length(data);
%# create data to plot (open, closed circles)
yData = linspace(0,1,nData-1)'; %'# SO formatting
closedX = data(1:end-1);
closedY = yData;
openX = data(2:end);
openY = yData;
%# lines are from open to close with NaN for where there should be no line
lineX = [closedX,openX,NaN(nData-1,1)]'; %'# SO formatting
lineX = lineX(:);
lineY = [closedY,openY,NaN(nData-1,1)]'; %'# SO formatting
lineY = lineY(:);
%# plot
figure %# I like to open a new figure before every plot
hold on
plot(lineX,lineY,'r')
plot(closedX,closedY,'ro','MarkerFaceColor','r')
plot(openX,openY,'ro','MarkerFaceColor','w')
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