I want to use linear regression based on least absolute value deviation to find the coefficients of my model with the help of measured data and 3 independent variables. The number of measurements I have are much greater than 3( number of cofficients). I have been trying to implement LAV method for this, but with no success. I need urgent help. Can someone please guide me in this. If someone already has the code for LAV, I would be grateful if you could share it with me.