mismatch between LabVIEW and MATLAB normalized LMS example

Hi,

I've been trying to use NLMS filter in a project I'm working on. The problem is, NLMS code in LabVIEW gives different results than adaptfilt.nlms function in MATLAB. What I did was

1. use the example in adaptfilt.nlms help http://www.mathworks.com/help/dsp/ref/adaptfilt.nlms.html

2. transfer x,d,y,e from MATLAB into LabVIEW

3. use LabVIEW code in attachment to generate y and e from LabVIEW

4. compare y,e from MATLAB with y,e from LabVIEW

I found they are different. Yes, both converge to desired signal but why are they different? shouldn't they be exactly the same?

Thanks