stat_tools.ijs

Script: ~addons/finance/finexec/statistics/intervals_freq_sums_counts.ijs
Contributor: William Szuch
Updated: 2023 03 17
Depend: Nil
Definitions: loaded to locale base
Status: dev
Script source: intervals_freq_sums_counts.ijs

Stat tools: random numbers
            deviations,stddev
            selections
            lists

See stats functions from: ‘~addons/stats/base.ijs’
base.ijs loads complete set of base statistical verbs into locale z.

Equations:
To Do

Definitions

C common
D deviation_mat
N nubsum, nubsum_all, nubsum_indx
R random_0to1, random_seed, repeat, repeats
S select_no_repl, select_with_repl, shuffle, stddev_biased
V var_biased

common v Shows which items are in common between two lists.
deviation_mat v Devations from mean for matrices down columns.
nubsum v Produce totals for subgroups based on the ‘nub’ of the goup.
nubsum_all v Nub sum for matrix.
nubsum_indx v Sums for nubs - numerical data.
random_0to1 v Random numbers between 0 and 1.
random_seed v Randomizing random number seed.
repeat v Number of times an item is repeated in a list.
repeats v Number of times each item in the list is repeated in the list.
select_no_repl v Select x numbers from y’s without replacement.
select_with_repl v Select x numbers from y’s with replacement.
shuffle v Random shuffle of y
stddev_biased v Biased standard dev estimate.
var_biased v Biased variance estimate.