English
Returns the lowest measured value per DS
f_sum - Sum
Returns the sum of all measured values per DS
f_num - Number of Values (Not NaN)
Returns the number of valid measured values per DS
f_grd - Gradient
Returns the gradient of a straight line by using linear regression per DS
f_last - Last Value
Returns the last valid measured value per DS
f_1st - First Value
Returns the first valid measured value per DS
f_nan - Number of NaNs
Returns the number of NaNs stored per DS
f_median - Median
Returns that value that separates the higher half from the lower half per DS
f_range - Range
Returns the difference between the largest and the smallest value per DS
f_iqr - Interquartile Range
Returns the distance of the middle50% around the median per DS
f_sd - Standard Deviation