Kendall's tau Correlation Test
       US Geological Survey, 2005

 Data set:  Example MKL4b - Mann-Kendall with LOWESS, input type 4      

 Flow-adjusted concentrations were calculated as
    residuals from a LOWESS smooth line (f =  0.50)
    for concentration vs. streamflow

 The tau correlation coefficient is -0.524
     S =   -110.
     z =  -3.291
     p =  0.0010

 The relation may be described by the equation:

    Residual =  24304.     +   -12.40     * X