REGR_COUNT

Calculates the linear regression coefficient for the count of pairs of x and y values where x and y are not null.

Parameter	Type	Description
`ys`	decimal, double	the independent variable.
`xs`	decimal, double	The dependent variable

Returns: decimal

query:

SELECT REGR_COUNT(flux, time_bjd_2454833)
  FROM tabbysstarflux

result:

regr_count
52