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generate a string with the numbers 1:999

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Alberto Acri
Alberto Acri 2023-6-16
编辑： Mayur 2023-6-16
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?

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Malay Agarwal
Malay Agarwal 2023-6-16
编辑：Malay Agarwal 2023-6-16
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.

更多回答（1 个）

Mayur
Mayur 2023-6-16
编辑：Mayur 2023-6-16
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
  1 个评论
Stephen23
Stephen23 2023-6-16
编辑：Stephen23 2023-6-16
"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!

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