generate a string with the numbers 1:999

Hello! I need to generate a string with the numbers 1:999.

I wrote these lines of code:

row_number = 1:999;
column_number = row_number.';
conversion_column_number = num2str(column_number);

I want to eliminate the two spaces that are created before the numbers 1:9 and the space that is created between the numbers 10:99 in conversion_column_number. Is there a solution to this problem?

Answer 1

[Malay Agarwal]

Hi, Alberto

Please try the following code:

row_number = 1:999;
column_number = row_number.';
conversion_column_number = string(column_number);

This has the following output:

According to MATLAB documentation, the function num2str() converts the input array to a character array and MATALB makes sure that each element in a character array is of the same size, which is why you're getting the spaces.

Answer 2

[Mayur]

Hi!

I understand that you want to convert 'column_number' to a string without extra spaces.

You can use the 'string' function instead of 'num2str' here.

row_number = 1:999;
column_number = row_number.';
conversion_column_number = string(column_number);

Alternatively, you can try with this.

row_number = 1:999;
column_number = row_number.';
conversion_column_number = "" + column_number;

For more information you can refer the following documentation: https://www.mathworks.com/help/matlab/ref/string.html

[Stephen23]

"For more information you can refer the following documentation..."

Rather than linking to the Stateflow toolbox's overloaded STRING function, much better would be a link to the actual MATLAB STRING function:

https://www.mathworks.com/help/matlab/ref/string.html

Always pay attention to the toolbox!