How to add strings to an array within a loop

Hello Team, I want to create an array of legend names for a plot. The final array should look like this:

legend_names = ["Case_1", "Case_2", Case_3", ......., "Case_30"]

So, I created a loop to create the variable names,

For ii=1:30

name = sprintf("Case_%d", ii); %%% to create the Case_X names

legend_names = append......?? %%% to create the array as mentioned before

end

Not sure how to construct the array in the loop.

Thanks for your help!

Answer 1

[Cris LaPierre]

If you are using strings, you can create this just using "+".

legend_names = "Case_" + string(1:5)

legend_names = 1×5 string array
    "Case_1"    "Case_2"    "Case_3"    "Case_4"    "Case_5"

[Sayan Banerjee]

Thank you so much for the prompt response. Your method is amazing and works fine.

However, in the legend the underscore is interpreted as subscript. How to fix that?

[Cris LaPierre]

Set the tex interpreter to none.

legend(legend_names,'Interpreter',"none")

Answer 2

[Ameer Hamza]

Easier is to use compose()

legend_names = compose('Case_%d', 1:30)

It create a cell array which can be directly use with legend()

legend(legend_names)

You can also directly create a string array

legend_names = compose("Case_%d", 1:30)

[Sayan Banerjee]

Thank you so much for the prompt response. Your method is compact and works just to create the array.

However, in the legend the underscore is interpreted as subscript. How to fix that?

[Ameer Hamza]

Change the line to

legend_names = compose('Case\\_%d', 1:30)