Plot two columns from a table error

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Niko
Niko 2023-5-19
评论： Image Analyst 2023-6-1
plot( t.x, t.y );
Output:
Error using plot
Too many input arguments.
Where t.x and t.y are 50000x1 double

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回答（1 个）

Image Analyst
Image Analyst 2023-5-19
Ran in:
What do these next 2 lines show in your command window?
whos t
which -all plot
built-in (/MATLAB/toolbox/matlab/graph2d/plot) /MATLAB/toolbox/matlab/graphics/math/@digraph/plot.m % digraph method /MATLAB/toolbox/matlab/graphics/math/@graph/plot.m % graph method /MATLAB/toolbox/matlab/timeseries/@timeseries/plot.m % timeseries method /MATLAB/toolbox/matlab/graphics/math/@polyshape/plot.m % polyshape method /MATLAB/toolbox/matlab/graphics/math/@alphaShape/plot.m % alphaShape method /MATLAB/toolbox/matlab/bigdata/@tall/plot.m % tall method /MATLAB/toolbox/bioinfo/bioinfo/@phytree/plot.m % phytree method /MATLAB/toolbox/bioinfo/microarray/@HeatMap/plot.m % HeatMap method /MATLAB/toolbox/bioinfo/microarray/@clustergram/plot.m % clustergram method /MATLAB/toolbox/curvefit/curvefit/@cfit/plot.m % cfit method /MATLAB/toolbox/curvefit/curvefit/@sfit/plot.m % sfit method /MATLAB/toolbox/econ/econ/@conjugateblm/plot.m % conjugateblm method /MATLAB/toolbox/econ/econ/@diffuseblm/plot.m % diffuseblm method /MATLAB/toolbox/econ/econ/@mixconjugateblm/plot.m % mixconjugateblm method /MATLAB/toolbox/econ/econ/@lassoblm/plot.m % lassoblm method /MATLAB/toolbox/econ/econ/@mixsemiconjugateblm/plot.m % mixsemiconjugateblm method /MATLAB/toolbox/econ/econ/@empiricalblm/plot.m % empiricalblm method /MATLAB/toolbox/econ/econ/@blm/plot.m % blm method /MATLAB/toolbox/econ/econ/@customblm/plot.m % customblm method /MATLAB/toolbox/econ/econ/@semiconjugateblm/plot.m % semiconjugateblm method /MATLAB/toolbox/ident/ident/@iddata/plot.m % iddata method /MATLAB/toolbox/ident/nlident/@idnlarx/plot.m % idnlarx method /MATLAB/toolbox/ident/nlident/@idnlhw/plot.m % idnlhw method /MATLAB/toolbox/mpc/mpc/@mpc/plot.m % mpc method /MATLAB/toolbox/robust/rctobsolete/robust/@frd/plot.m % frd method /MATLAB/toolbox/robust/robust/@umargin/plot.m % umargin method /MATLAB/toolbox/shared/channel/rfprop/@propagationData/plot.m % propagationData method /MATLAB/toolbox/shared/drivingscenario/@drivingScenario/plot.m % drivingScenario method /MATLAB/toolbox/signal/signal/@dspdata/plot.m % dspdata method /MATLAB/toolbox/stats/bayesoptim/@BayesianOptimization/plot.m % BayesianOptimization method /MATLAB/toolbox/stats/classreg/@LinearModel/plot.m % LinearModel method /MATLAB/toolbox/wavelet/wavelet/@dtree/plot.m % dtree method /MATLAB/toolbox/wavelet/wavelet/@wdectree/plot.m % wdectree method /MATLAB/toolbox/wavelet/wavelet/@ntree/plot.m % ntree method
x = [1:5000]';
y = sin(2 * pi * x / 1000);
t = table(x, y)
t = 5000×2 table
x y __ _________ 1 0.0062831 2 0.012566 3 0.018848 4 0.02513 5 0.031411 6 0.03769 7 0.043968 8 0.050244 9 0.056519 10 0.062791 11 0.06906 12 0.075327 13 0.081591 14 0.087851 15 0.094108 16 0.10036
plot(t.x, t.y); % See No error if you do it right.
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Niko
Niko 2023-6-1
interesting...
So this is what I get from which
built-in (C:\Program Files\MATLAB\R2022b\toolbox\matlab\graph2d\plot)
C:\Program Files\MATLAB\R2022b\toolbox\matlab\bigdata\@tall\plot.m % tall method
C:\Program Files\MATLAB\R2022b\toolbox\matlab\graphics\math\@alphaShape\plot.m % alphaShape method
C:\Program Files\MATLAB\R2022b\toolbox\matlab\graphics\math\@digraph\plot.m % digraph method
C:\Program Files\MATLAB\R2022b\toolbox\matlab\graphics\math\@graph\plot.m % graph method
C:\Program Files\MATLAB\R2022b\toolbox\matlab\graphics\math\@polyshape\plot.m % polyshape method
C:\Program Files\MATLAB\R2022b\toolbox\matlab\timeseries\@timeseries\plot.m % timeseries method
C:\Program Files\MATLAB\R2022b\examples\wavelet\data\@edwttree\plot.m % edwttree method
C:\Program Files\MATLAB\R2022b\examples\wavelet\data\@rwvtree\plot.m % rwvtree method
C:\Program Files\MATLAB\R2022b\examples\wavelet\data\@wvtree\plot.m % wvtree method
C:\Program Files\MATLAB\R2022b\toolbox\bioinfo\bioinfo\@phytree\plot.m % phytree method
C:\Program Files\MATLAB\R2022b\toolbox\bioinfo\microarray\@clustergram\plot.m % clustergram method
C:\Program Files\MATLAB\R2022b\toolbox\bioinfo\microarray\@HeatMap\plot.m % HeatMap method
C:\Program Files\MATLAB\R2022b\toolbox\coder\half\@half\plot.p % half method
C:\Program Files\MATLAB\R2022b\toolbox\curvefit\curvefit\@cfit\plot.m % cfit method
C:\Program Files\MATLAB\R2022b\toolbox\curvefit\curvefit\@sfit\plot.m % sfit method
C:\Program Files\MATLAB\R2022b\toolbox\ident\ident\@iddata\plot.m % iddata method
C:\Program Files\MATLAB\R2022b\toolbox\ident\nlident\@idnlarx\plot.m % idnlarx method
C:\Program Files\MATLAB\R2022b\toolbox\ident\nlident\@idnlhw\plot.m % idnlhw method
C:\Program Files\MATLAB\R2022b\toolbox\robust\rctobsolete\robust\@frd\plot.m % frd method
C:\Program Files\MATLAB\R2022b\toolbox\robust\robust\@umargin\plot.m % umargin method
C:\Program Files\MATLAB\R2022b\toolbox\shared\channel\rfprop\@propagationData\plot.m % propagationData method
C:\Program Files\MATLAB\R2022b\toolbox\signal\signal\@dspdata\plot.m % dspdata method
C:\Program Files\MATLAB\R2022b\toolbox\stats\classreg\@LinearModel\plot.m % LinearModel method
C:\Program Files\MATLAB\R2022b\toolbox\wavelet\wavelet\@dtree\plot.m % dtree method
C:\Program Files\MATLAB\R2022b\toolbox\wavelet\wavelet\@ntree\plot.m % ntree method
C:\Program Files\MATLAB\R2022b\toolbox\wavelet\wavelet\@wdectree\plot.m
Image Analyst
Image Analyst 2023-6-1
Yeah, that all looks fine. They're just overloaded versions of plot. But you don't want to see something like
c:\users\NIKO\Documents\matlab\work\plot.m
which is some version of your own creation.

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