string joining without inverted commas and variable pass in string.

Hello everyone,

I am trying to join two strings and then I need to have it as character and remove all the single or double inverted commas on it.

Also, how to give one input as variable.

for example.

"obj.UI.knob_" + "4" + ".Value"

here "4" is variable and it should change.

At the end I should have- obj.UI.knob_4.Value and not "obj.UI.knob_4.Value" i.e I dont need inverted commas.

I request to pleae help in removing the inverted commas, and how to pass variable in it.

Thanking you,

Kind regards

[Stephen23]

"I request to pleae help in removing the inverted commas"

The "inverted commas" are not a part of the text, there are purely an artifact of the display routine. You are confusing how data is displayed in the command window with the data itself.

Answer 1

[Deepak Gupta]

That's how strings will be displayed if you directly type variable holding the string in command window. If you just want to display string without commas, you can use disp function.

[Stephen23]

+1 Works for me:

num = 23;
disp(['out = obj.Knob' ,num2str(num), '.Value'])

out = obj.Knob23.Value

Answer 2

[Matlab Pro]

Hi @Paramjit Yadav

1st - use a single 'postrophe': ' instead of "

I have created a simple function that returnes the value of a Knob.

Add this function to your app

function out = ret_Knob_value(obj,num)
eval(['out = obj.Knob' ,num2str(num), '.Value;']);

Good luck!

[Paramjit Yadav]

@Matlab Pro

Thank you so much for answering.

But I need 'out = obj.Knob' ,num2str(num), '.Value' to displayed as

out = obj.Knob4.Value. without inverted comas. Since I have prepared app without using app tool bar. Hence I need it to change values.

Here I get 'out = obj.Knob4.Value' i.e with single inverted commas. I dont wantt this single inverted commas as well in the end.

Thanking yoiu,

Kind regards