drawing a digital signal

Using matlab can we draw a digital signal 开发者_如何转开发out of an array that contains numbers ? Is there a way to convert each number to binary "dec2bin" and then draw it ?

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You can use dec2bin, but remember that this gives you a set of strings, i.e. character data. So do the following:

dec2bin(x, NUM_BITS) - '0'

You can now plot each column of this.