How to convert an array of decimal values to binary?

Hi everyone,

I have a very large array read from a file:

x = [0 0 0 2 0 3 0 1 0 0 ....]'

This values correspond to symbols from QPSK demodulation and I need to convert the array to binary so that the result is:

x_bin = [0 0 0 0 0 0 1 0 0 0 1 1 0 0 0 1 0 0 0 0 ....]'

I tried using x_bin = cellstr(dec2bin(x,2)) but what I get is this cell array with 2 bits in each position:

x_bin = [00 00 00 10 00 11 00 01 00 00 ...]'

I need a numerical array (not a cell array) with 1 bit in each position like the one above.

Is there any way to achieve this?

Thank you in advance!

[Stephen23]

@Pablo Díaz Amores: your x_bin examples seem to be missing the first pair of zeros: x has three leading zeros, so surely x_bin should have six leading zeros?

[Pablo Díaz Amores]

I missed 2 zeros, you are right. The array x_bin should have 6 zeros at the beginning. I edited it so nobody gets confused. Thanks you for your help!

Answer 1

[Stephen23]

>> x = [0 0 0 2 0 3 0 1 0 0];
>> c = dec2bin(x(:),2);
>> reshape(c.',1,[])-'0'
ans =
     0     0     0     0     0     0     1     0     0     0     1     1     0     0     0     1     0     0     0     0