Syntax:

$ ./vartools -l EXAMPLES/lc_list -header \
    -Jstet 0.5 EXAMPLES/dates_tfa

#Name Jstet_0 Kurtosis_0 Lstet_0
EXAMPLES/1  98.13279   0.96779  94.97154
EXAMPLES/2  30.19309   0.94719  28.59852
EXAMPLES/3   0.65597   0.92816   0.60885
EXAMPLES/4   0.34402   0.84500   0.29070
EXAMPLES/5   0.58730   0.92120   0.54102
EXAMPLES/6   0.34455   0.93794   0.32317
EXAMPLES/7   0.41754   0.92501   0.38623
EXAMPLES/8   0.46381   0.96124   0.44583
EXAMPLES/9   0.22075   0.80997   0.17880
EXAMPLES/10   0.25784   0.92806   0.23929

Calculate Stetson's J statistic for the light curves in the list EXAMPLES/lc_list. Use 0.5 days to distinguish between "near" and "far" observations.