Given a sample of exceedances, compute the first four L-moments and use either the first two to obtain the scale and shape (default), or else use L-skewness and L-scale to compute the scale and shape of the generalized Pareto distribution
     
    
    Usage
    gpd.lmom(xdat, thresh, sorted = FALSE, Lskew = FALSE)
 
    
    Arguments
- xdat
- [numeric] vector of observations 
- thresh
- [numeric] optional threshold argument 
- sorted
- [logical] if - TRUE, observations are sorted in increasing order
 
- Lskew
- [logical]; if - TRUE, shape is obtained from L-skewness rather than first two moments.
 
 
    
    Value
    a vector of length two with the scale and shape estimates