Equation of the Line in command window

I have a graph, with an equation, but i need to display that equation into the command window.

Answer 1

[Star Strider]

Try this:

B = [y(:) ones(size(y(:)))] \ x(:);
fprintf('Linear: y = %.4f*x%+.2f', B)                                                                               % Display In Command Window

text(0, max(ylim), sprintf('Linear: y = %.4f*x%+.2f', B), 'HorizontalAlignment','left', 'VerticalAlignment','top')  % Display On Plot

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[Ashley Megow]

I keep getiing an unreconginzable y error

[Star Strider]

You did not post your variables.

The ‘x’ vector is your independent variable in my code, and ‘y’ is the dependent variable.

If you make the appropriate substitutions, my code should work.

One edit:

B = [y(:) ones(size(y(:)))] \ x(:);
fprintf('Linear: y = %.4f*x%+.2f', B)                                                                                               % Display In Command Window
text(max(0,min(xlim)), max(ylim), sprintf('Linear: y = %.4f*x%+.2f', B), 'HorizontalAlignment','left', 'VerticalAlignment','top')   % Display On Plot

That guarantees that the left edge of the text result does not extend beyond the left (y) axis line.

[Ashley Megow]

Thank you

[Star Strider]

My pleasure!

If my Answer helped you solve your problem, please Accept it!

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