Here are some plot examples: plot (x, y, 'or', x, y2, x, 圓, 'm', x, y4, '+') This command will plot y with red circles, y2 with solid lines, 圓 with solid magenta lines, and y4 with points displayed as ‘ + ’. %examples and ‘ko’ for the negative examples. Note that the last semicolon is required and Octave will generate an error if it is left out. % 2D plot, using the option ‘k+’ for the positive %Plot the positive and negative examples on a I have a doubt, regarding the syntax, as i am facing an error (Octave 6.1.0 on Ubuntu) However, when I “Save-as” the result as a ‘png’, the image always contains residual evidence of the lines.Īlso, if I may, is there a way to lock the aspect ratio of resulting plots? Despite the fact that my x,y values are symmetric, the plots are always over a rectangular grid, instead of square. ![]() (I understand that the ‘interp’ shading interpolates missing values). To change the appearance of the plot, you need to add a third argument to the plot command. This is the default style of plotting in Octave. The output of the plot is automatically given on the dB scale, with several formatting options. Visible lines between the values of the mesh. octave:> plot(x,y) You should now have a new window on your screen that contains a plot of y x2 from x 0 to x 1 using a thin blue line to connect points. The new Octave Band plot, available in the Acoustics Module within COMSOL Multiphysics, includes built-in features that are specific to acoustics simulations and can be helpful for representing and analyzing frequency-domain data. (because I really only want intensities) and both do result in plots which visually do not show Surface(x,y,z,’edgecolor’,’none’), shading(‘interp’), colormap(gray) Surface(x,y,z,’linestyle’,’none’), shading(‘interp’), colormap(gray) I would like to eliminate the gridlines on the plot and see–and save–just color information.įrom advice elsewhere, I tried separately: Pingback: Octavian Statistics | Playing with Systems ![]() ![]() Pingback: Polynomial Curve Fitting & Interpolation | Playing with Systems This twelfth article of the mathematical journey through open source, shows the mathematical visualization in octave.ġ0 thoughts on “ Figures, Graphs, and Plots in Octave”
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