error when using horzcat

Hi for all...

i have error when using horzcat >>> i crate two vectors randomly ( count1=randi(0:1 ,[1,32]); ) and ( count2=randi(0:1 ,[1,32]); ) and i have this vector number ( d0 = dec2bin( 17623,15); ) the problem is : when i using horzcat ( count1,count2,d0) the result appear with some symbols

can anyone help me

Answer 1

[Star Strider]

The problem is that the output from dec2bin is a string, so horizcat considers everything a string. The ‘symbols’ you see are therefore ‘d0’. To see all of the variables as a string of [0 1] ‘bits’ (strings in this instance), use num2str:

count1=num2str(randi(0:1 ,[1,32]),'%d');
count2=num2str(randi(0:1 ,[1,32]),'%d');
d0 = dec2bin( 17623,15);
result = horzcat(count1,count2,d0)

[mays afif]

thank you .. but i cann't using (xor)operation with the result

count1=num2str(randi(0:1 ,[1,32]),'%d');
count2=num2str(randi(0:1 ,[1,32]),'%d');
d0 = dec2bin( 17623,15);
result1 = horzcat(count1,count2,d0)

count4=num2str(randi(0:1 ,[1,32]),'%d');
count3=num2str(randi(0:1 ,[1,32]),'%d');
d0 = dec2bin( 17623,15);
result2 = horzcat(count3,count4,d0)

did you have another suggestion

[Star Strider]

My pleasure.

You didn’t mention using xor!

It’s necessary to be creative for this to work:

count1=num2str(randi(0:1 ,[1,32]),'%d');
count2=num2str(randi(0:1 ,[1,32]),'%d');
d0 = dec2bin( 17623,15);
result1 = horzcat(count1,count2,d0);

count4=num2str(randi(0:1 ,[1,32]),'%d');
count3=num2str(randi(0:1 ,[1,32]),'%d');
d0 = dec2bin( 17623,15);
result2 = horzcat(count3,count4,d0);

result1n = uint8(result1)-48;
result2n = uint8(result2)-48;
xor_result = xor(result1n, result2n);

fprintf(1, ['\nxor_result = ' repmat('% d', 1, length(xor_result))  '\n'], xor_result);

produces (in this instance, results will differ between runs):

xor_result =  1 0 1 0 0 1 1 1 0 1 1 1 0 1 1 0 0 1 1 1 1 0 0 1 1 1 0 0 0 1 0 0 1 0 1 1 1 1 1 1 0 0 0 0 0 0 0 1 0 1 1 0 0 0 1 0 0 0 0 1 0 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

There might be more efficient ways to do this (since I don’t usually work with binary strings). Even if inefficient, this has the virtue of producing the correct result.

[mays afif]

thank you very much

[Star Strider]

My pleasure!