BIN2INT Convert Binary Arrays to Integer

Section: Array Generation and Manipulations

Usage

Converts the binary decomposition of an integer array back to an integer array. The general syntax for its use is

   y = bin2int(x)

where x is a multi-dimensional logical array, where the last dimension indexes the bit planes (see int2bin for an example). By default, the output of bin2int is unsigned uint32. To get a signed integer, it must be typecast correctly.

Example

The following piece of code demonstrates various uses of the int2bin function. First the simplest example:

--> A = [2;5;6;2]
A = 
  <int32>  - size: [4 1]
 
Columns 1 to 1
 2  
 5  
 6  
 2  
--> B = int2bin(A,8)
B = 
  <logical>  - size: [4 8]
 
Columns 1 to 8
 0  0  0  0  0  0  1  0  
 0  0  0  0  0  1  0  1  
 0  0  0  0  0  1  1  0  
 0  0  0  0  0  0  1  0  
--> bin2int(B)
ans = 
  <uint32>  - size: [4 1]
 
Columns 1 to 1
 2  
 5  
 6  
 2  
--> A = [1;2;-5;2]
A = 
  <int32>  - size: [4 1]
 
Columns 1 to 1
          1  
          2  
         -5  
          2  
--> B = int2bin(A,8)
B = 
  <logical>  - size: [4 8]
 
Columns 1 to 8
 0  0  0  0  0  0  0  1  
 0  0  0  0  0  0  1  0  
 1  1  1  1  1  0  1  1  
 0  0  0  0  0  0  1  0  
--> bin2int(B)
ans = 
  <uint32>  - size: [4 1]
 
Columns 1 to 1
   1  
   2  
 251  
   2  
--> int32(bin2int(B))
ans = 
  <int32>  - size: [4 1]
 
Columns 1 to 1
   1  
   2  
 251  
   2