Time for action - changing the figure properties

1. 1. Let us try to change the plot of the graph above. First:

octave:61> plot(x, f, "linewidth", 5);

• This command will create the same plot as above, but here we specify the graph property linewidth to have the value 5 rather than 1.

1. 2. To set the correct limits on the axis, we use set:

octave:62> set(gca, "xlim", [-5.5 1])

1. 3. We can also use set to set the line width of the window box and the font size of the numbers on the axes:

octave:63> set(gca, "linewidth", 2)
octave:64> set(gca, "fontsize", 25)

1. 4. The axes labels are also set by the set function. Here the properties are"xlabel" and"ylabel", and the property value is set using the text function:

octave:65> set(gca, "xlabel", text("string", "x", "fontsize", 25))
octave:66> set(gca, "ylabel", text("string", "f(x)",
"fontsize", 25))

1. 5. The figure should now look something like the figure below:

Note

Many prefer to use single quotation marks around the property label, for...