Simple Unit Conversion, Undefined variable Error

I'm trying to write a function that should convert inch, feet, mm and cm to meters. Code is below;

function MetricWorks

x= input('Enter the Input Distance: ');

y= input('Enter the input Units(cm,mm,in,ft): ');

in=x*0.0254;

ft=x*0.3048;

cm=x*0.01;

mm=x*0.001;

switch y

case 'in'

fprintf('%0.1f inches is equal to %0.4f m \n',x,in)

case 'feet'

fprintf('%0.1f feet is equal to %0.4f m \n',x,ft)

case 'cm'

fprintf('%0.1f cm is equal to %0.4f m \n',x,cm)

case 'mm'

fprintf('%0.1f mm is equal to %0.4f m \n',x,mm)

endswitch

end

As you can guess it gives 'Undefined function or variable 'in'.' error. I don't know if there are any other possible errors after that.

Thanks in advance.

Answer 1

[Star Strider]

The ‘y’ response needs to be a string (actually, character vector):

y = input('Enter the input Units(cm,mm,in,ft): ','s');

See the input documentation section on Request Unprocessed Text Input.

[Ferhat Bastug]

It works perfectly now thanks to you, I guess all I had to do was string but I never knew about it before, thanks again.

[Star Strider]

As always, my pleasure!