TDIGEST.TRIMMED_MEAN key low_cut_quantile high_cut_quantile
@tdigest
,
@read
,
Returns an estimation of the mean value from the sketch, excluding observation values outside the low and high cutoff quantiles.
key
is the key name for an existing t-digest sketch.
low_cut_quantile
a floating-point value in the range [0..1]. It must be lower than high_cut_quantile
.
When equal to 0, no low cut.
When greater than 0, exclude observation values lower than this quantile.
high_cut_quantile
a floating-point value in the range [0..1]. It must be higher than low_cut_quantile
.
When less than 1, exclude observation values greater than or equal to this quantile.
When equal to 1, no high cut.
redis> TDIGEST.CREATE t COMPRESSION 1000
OK
redis> TDIGEST.ADD t 1 2 3 4 5 6 7 8 9 10
OK
redis> TDIGEST.TRIMMED_MEAN t 0.1 0.6
"4"
redis> TDIGEST.TRIMMED_MEAN t 0.3 0.9
"6.5"
redis> TDIGEST.TRIMMED_MEAN t 0 1
"5.5"
One of the following:
nan
if the sketch is empty.