Query logarithmic axis properties

After a plot is generated using semilogx, how do I query the x-axis properties, i.e., xLen, xMin, xScl?

Answer 1

[Steven Lord]

h = semilogx(1:10, 1:10);

ax = ancestor(h, 'axes')

ax = 
  Axes with properties:

             XLim: [1 10]
             YLim: [1 10]
           XScale: 'log'
           YScale: 'linear'
    GridLineStyle: '-'
         Position: [0.1300 0.1100 0.7750 0.8150]
            Units: 'normalized'

  Show all properties

Now query or change the properties of the axes whose handle is ax.

[Joseph Powe]

The xScl number I was searching for, in the case of a log scale, is the distance in inches (for example) between cycles. This is the value as physically measured on a graph between the powers of ten.

Answer 2

[Joseph Powe]

I tried this, but it does not give xScl. Is it derivable from the other ax attributes?

[Steven Lord]

If you're asking for clarification on an answer, please post that question as a comment on the answer rather than as a separate answer.

I'm not sure what you're looking for when you say xScl. My suspicion is that you're looking for the XScale property.

h = semilogx(1:10, 1:10);

ax = ancestor(h, 'axes');
ax.XScale % Indices that the X axis is in log scale

ans = 'log'

If you want to see all the public properties that start with X, for example, use tab completion. It will list potential completions for that partial command.

ax.x% and then press the Tab key

[Joseph Powe]

The xScl number I was searching for, in the case of a log scale, is the distance in inches (for example) between cycles. This is the value as physically measured on a graph between the powers of ten.