matlab code for getting square wave

[prajna]

hi,
pls can i get a help for writing a code for below in matlab.....
i have a program which connverts ASCII to digital 0's and 1's and output is put into a file... file which contains samples of many 0's and 1's i need to convert it into square waveform as 1=5volts and 0= -5 volts...can anyone pls help me

 

[chitturi_sb]

Just plot the data, u should get the square wave