Matlab string concatenation behavior with different data types

Question

I am using Matlab 2018b on Windows 10. I understand that the Matlab string concatenation needs input arguments under concatenation to be a character array, a cell array of character vectors, or a string array as mentioned in https://de.mathworks.com/help/matlab/ref/strcat.html. Based on this i was expecting an error while trying to do the following:

[1, 'some_string']

or

strcat(1, 'some_string')

But i am not getting any error message. Instead getting output as displayed in the snapshot below:

Based on below, looks like automatic type conversion is taking place for 1 from double to char but seems something in getting wrong in the process resulting in 1 being replaced with a junk char. Any insight in to this please?

x = strcat(1, 'some_string');
class(x(1))

ans =

    'char'

RPM · Accepted Answer · 2019-03-24 17:09:47Z

3

Matlab is treating the 1 as an ascii code, corresponding to the start of heading character which is being displayed as the square you see.

It is more obvious what Matlab is doing if you e.g. do strcat(65, 'some_string'), which returns Asome_string as the ascii code 65 corresponds to a capital A.

answered Mar 24, 2019 at 17:09

RPM

1,80913 silver badges17 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

Matlab string concatenation behavior with different data types

1 Answer 1

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Related