xcorr and saving waveform

Hi,
I’m relatively new to matlab and I have a fairly basic 
question. I have 2 waveforms (x1,y1) and (x2,x2). I want 
to give these waveforms names such as wave_1 and wave_2 so 
that I can perform the xcorr function as follows xcorr
(wave_1, wave_2). How would I achieve this in Matlab?
thanks for any help
john

On Dec 4, 7:05 am, "john1985" <murray_1...@hotmail.com> wrote:
> Hi,
> I'm relatively new to matlab and I have a fairly basic
> question. I have 2 waveforms (x1,y1) and (x2,x2). I want
> to give these waveforms names such as wave_1 and wave_2 so
> that I can perform the xcorr function as follows xcorr
> (wave_1, wave_2). How would I achieve this in Matlab?
> thanks for any help
> john

John,

I know Matlab, and I've used xcorr, but I don't understand your post.
What do you mean by "I have 2 waveforms (x1,y1) and (x2,x2)"?

>On Dec 4, 7:05 am, "john1985" <murray_1...@hotmail.com> wrote:
>> Hi,
>> I'm relatively new to matlab and I have a fairly basic
>> question. I have 2 waveforms (x1,y1) and (x2,x2). I want
>> to give these waveforms names such as wave_1 and wave_2 so
>> that I can perform the xcorr function as follows xcorr
>> (wave_1, wave_2). How would I achieve this in Matlab?
>> thanks for any help
>> john
>
>John,
>
>I know Matlab, and I've used xcorr, but I don't understand your post.
>What do you mean by "I have 2 waveforms (x1,y1) and (x2,x2)"?
>

Darol,
I mean that I'm reading 2 waveforms from an oscilloscope where x
represents the time base and y1 represents the voltage base.
Rgards
John

On Dec 5, 8:01 am, "john1985" <murray_1...@hotmail.com> wrote:
> >On Dec 4, 7:05 am, "john1985" <murray_1...@hotmail.com> wrote:
> >> Hi,
> >> I'm relatively new to matlab and I have a fairly basic
> >> question. I have 2 waveforms (x1,y1) and (x2,x2). I want
> >> to give these waveforms names such as wave_1 and wave_2 so
> >> that I can perform the xcorr function as follows xcorr
> >> (wave_1, wave_2). How would I achieve this in Matlab?
> >> thanks for any help
> >> john
>
> >John,
>
> >I know Matlab, and I've used xcorr, but I don't understand your post.
> >What do you mean by "I have 2 waveforms (x1,y1) and (x2,x2)"?
>
> Darol,
> I mean that I'm reading 2 waveforms from an oscilloscope where x
> represents the time base and y1 represents the voltage base.
> Rgards
> John

Ok, then I'll assume that you have two waveform files stored
somewhere. In Matlab you can create the waveform matrices, for
example, like this:

freadid1 = fopen('c:/path/waveform1.bin','r');
freadid2 = fopen('c:/path/waveform2.bin','r');
wave_1 = fread(freadid1,'int16',1);  % the '1' is used to skip the
time data so that you just have the amplitude samples
wave_2 = fread(freadid2,'int16',1);

corr_result = xcorr(wave_1,wave_2);

The Matlab help documentation will give you the wide variety of file I/
O operations that are available. I've just given an example. I suspect
that there may be header info in the file that you will have to
account for.