What is the MATLAB code for applying a low pass filter on the readings of accelerometer and gyroscope in a sensor tag?

I am working on a project in which i need to analyze walking of a person. I am using a CC2541 sensor tag. The readings of the accelerometer and gyroscope are in the form of x, y and z axis. I need to pass these readings through a low pass filter to remove the noise. How can it be done. Please provide me a solution as soon as possible.

[José-Luis]

 doc filter

[NIHARIKA]

Jose Luis please if you could elaborate what exactly you mean by doc filter. Do you have any of its sample code?