how to convert a single row matrix into an n bit number

I am given a numerical array, a = [0 0 1 0 1 0 1]. i have to transform it into n bit number, n = column number,

a = 0010101.

sprintf and other functions ignore the preceding zeros, which isn't helpful.

Answer 1

[Image Analyst]

Try this:

a = [0 0 1 0 1 0 1]
str = sprintf('%d', a)
num = bin2dec(str)

a =

0 0 1 0 1 0 1

str =

'0010101'

num =

21