## Matlab Tutorial 3: Strings in Matlab

`>> a=1; % the class is double and the storage size is 8 bytes.`
`>> words='This is a string'`
```>> words(2) % gives the second element in the variable words. ans = h```

Different applicable commands to cell arrays can be found in the table below:

• cell(m,n) Creates an empty m by n cell array.
• celldisp(A) Displays all elements in the cell array A.
• cellplot(A) Gives a graphical picture of the cell array A.
• cell2struct(A,post,dim) Creates a structure, if dim=1, the information is read column wise to field 1 in the structure.
`>> words(2)='t' % replaces the second element in the vector with t.`

We will also exemplify how cell2struct can be used. If the concept structure is not known from programming you will also have a possibility later on in the course to get to know the concept. Structure is a variable containing different fields. Think of it as a method of organizing the variable. Each field can be accessed by dot notation.

```>> E=cell2struct(A,{'first_name','last_name','age','sport'},2)   % notice that dimension is now 2. E = 2x1 struct array with fields: first_name last_name age sport Display the different fields within the structure: E(1) ans = first_name: 'Charles' last_name: 'Anderson' age: 23 sport: 'football' E(2) ans= first_name: 'Gwen' last_name: 'Nolan' age: 34 sport: ’golf’```

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1. Khashabi — May 19, 2010 @ 6:23 pm

great !
go on …

2. Khashabi — May 19, 2010 @ 7:20 pm

seems missing a ‘\’ before ‘n’ (new line escape character)
Line: x= input(‘Give me a name !: n’,’s’); % skips a row

3. saravanan — November 21, 2011 @ 9:52 am

You are saying it is possible to change a letter by assigning with new string. Is it possible in structures, for example,

s.text = ‘TITLE=”PhotoStudio Exported Data”‘
[1×98 char]
‘ZONE T=”PhotoStudio Data” K = 147 F=PAINT’

OLD STRING
s.text(3) = ‘ZONE T=”PhotoStudio Data” K = 169 F=PAINT’
For REPLACING THE STRING, suppose if I assign
s.text(3) = ‘ZONE T=”PhotoStudio Data” K = 13 L =13 F=PAINT’
it is not assigning so and what is the problem in it?