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Meaning of specific MATLAB instruction num2str

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0

I have been sent some complete MATLAB script. It appears that author of this code has made a specific instruction using num2str and set_param .
What is the purpose of the following line:

['[' num2str(operating_point) ']']

I am interested specially of an intention of using '[' as syntax.

set_param(system_block_name, operating_point_name,...
 ['[' num2str(operating_point) ']']

string matlab type-conversion string-concatenation

share|improve this question

edited Mar 26 at 8:08

SecretAgentMan

1,44299 silver badges2424 bronze badges

asked Mar 25 at 18:55

PomaranczkaPomaranczka

311 bronze badge

• 
  
  
  

  
  5
  

  
  
  
  
  
  

  
  
  Have you looked at the help mathworks.com/help/matlab/ref/num2str.html and tried using it in MATLAB?
  
  – Navan
  Mar 25 at 18:58
  

  
  
  
  


• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  
  Did you try creating a numeric variable operating_point and and executing that first line of code?
  
  – beaker
  Mar 25 at 19:23
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Yes, yes. I do understand what does num2str . I was wondering why the author of that code used braces in apostrophe '[' and ']' , because I think it's unnecessary.
  
  – Pomaranczka
  Mar 26 at 21:24
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Then you didn't actually try the command, or you would see what the single-quotes do. I wasn't trying to get you to run num2str, I was trying to get you to execute the part you had the actual question about.
  
  – beaker
  Mar 27 at 14:23
  
  

  
  
  
  

add a comment | 

0

I have been sent some complete MATLAB script. It appears that author of this code has made a specific instruction using num2str and set_param .
What is the purpose of the following line:

['[' num2str(operating_point) ']']

I am interested specially of an intention of using '[' as syntax.

set_param(system_block_name, operating_point_name,...
 ['[' num2str(operating_point) ']']

string matlab type-conversion string-concatenation

share|improve this question

edited Mar 26 at 8:08

SecretAgentMan

1,44299 silver badges2424 bronze badges

asked Mar 25 at 18:55

PomaranczkaPomaranczka

311 bronze badge

• 
  
  
  

  
  5
  

  
  
  
  
  
  

  
  
  Have you looked at the help mathworks.com/help/matlab/ref/num2str.html and tried using it in MATLAB?
  
  – Navan
  Mar 25 at 18:58
  

  
  
  
  


• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  
  Did you try creating a numeric variable operating_point and and executing that first line of code?
  
  – beaker
  Mar 25 at 19:23
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Yes, yes. I do understand what does num2str . I was wondering why the author of that code used braces in apostrophe '[' and ']' , because I think it's unnecessary.
  
  – Pomaranczka
  Mar 26 at 21:24
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Then you didn't actually try the command, or you would see what the single-quotes do. I wasn't trying to get you to run num2str, I was trying to get you to execute the part you had the actual question about.
  
  – beaker
  Mar 27 at 14:23
  
  

  
  
  
  

add a comment | 

I have been sent some complete MATLAB script. It appears that author of this code has made a specific instruction using num2str and set_param .
What is the purpose of the following line:

['[' num2str(operating_point) ']']

I am interested specially of an intention of using '[' as syntax.

set_param(system_block_name, operating_point_name,...
 ['[' num2str(operating_point) ']']

string matlab type-conversion string-concatenation

share|improve this question

edited Mar 26 at 8:08

SecretAgentMan

1,44299 silver badges2424 bronze badges

asked Mar 25 at 18:55

PomaranczkaPomaranczka

311 bronze badge

['[' num2str(operating_point) ']']

set_param(system_block_name, operating_point_name,...
 ['[' num2str(operating_point) ']']

share|improve this question

edited Mar 26 at 8:08

SecretAgentMan

1,44299 silver badges2424 bronze badges

asked Mar 25 at 18:55

PomaranczkaPomaranczka

311 bronze badge

share|improve this question

edited Mar 26 at 8:08

SecretAgentMan

1,44299 silver badges2424 bronze badges

asked Mar 25 at 18:55

PomaranczkaPomaranczka

311 bronze badge

edited Mar 26 at 8:08

SecretAgentMan

1,44299 silver badges2424 bronze badges

edited Mar 26 at 8:08

SecretAgentMan

1,44299 silver badges2424 bronze badges

asked Mar 25 at 18:55

PomaranczkaPomaranczka

311 bronze badge

asked Mar 25 at 18:55

PomaranczkaPomaranczka

311 bronze badge

1 Answer
1

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oldest

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1

In MATLAB rectangular braces [] create vector/matrix.
By default, horizontal vector of strings concatenated into 1 string:

['str1','str2'] % produces str1str2

So

['[',']'] % will print []

num2str() converts number into string:

a=10;
my_str = ['[',num2str(a),']'] % will assign my_str = '[10]'

set_param() is some function that gets 3 parameters, where 3rd one is your string

share|improve this answer

answered Mar 25 at 20:42

AlBaZAlBaZ

2622 bronze badges

add a comment | 

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1

In MATLAB rectangular braces [] create vector/matrix.
By default, horizontal vector of strings concatenated into 1 string:

['str1','str2'] % produces str1str2

So

['[',']'] % will print []

num2str() converts number into string:

a=10;
my_str = ['[',num2str(a),']'] % will assign my_str = '[10]'

set_param() is some function that gets 3 parameters, where 3rd one is your string

share|improve this answer

answered Mar 25 at 20:42

AlBaZAlBaZ

2622 bronze badges

add a comment | 

1

In MATLAB rectangular braces [] create vector/matrix.
By default, horizontal vector of strings concatenated into 1 string:

['str1','str2'] % produces str1str2

So

['[',']'] % will print []

num2str() converts number into string:

a=10;
my_str = ['[',num2str(a),']'] % will assign my_str = '[10]'

set_param() is some function that gets 3 parameters, where 3rd one is your string

share|improve this answer

answered Mar 25 at 20:42

AlBaZAlBaZ

2622 bronze badges

add a comment | 

In MATLAB rectangular braces [] create vector/matrix.
By default, horizontal vector of strings concatenated into 1 string:

['str1','str2'] % produces str1str2

So

['[',']'] % will print []

num2str() converts number into string:

a=10;
my_str = ['[',num2str(a),']'] % will assign my_str = '[10]'

set_param() is some function that gets 3 parameters, where 3rd one is your string

share|improve this answer

answered Mar 25 at 20:42

AlBaZAlBaZ

2622 bronze badges

['str1','str2'] % produces str1str2

['[',']'] % will print []

a=10;
my_str = ['[',num2str(a),']'] % will assign my_str = '[10]'

share|improve this answer

answered Mar 25 at 20:42

AlBaZAlBaZ

2622 bronze badges

answered Mar 25 at 20:42

AlBaZAlBaZ

2622 bronze badges

answered Mar 25 at 20:42

AlBaZAlBaZ

2622 bronze badges