Results for “stats”

MTTR, MTBF, downtime and incident counts for a reporting window, from a list of incidents.

Weighted average of integers, computed exactly and rounded once to stated decimals with an explicit rounding mode.

Percentile of a list of numbers by a named method: nearest-rank, or linear interpolation (R-7, Excel PERCENTILE.INC).

Mean, median and mode of a list of integers, with the mean and median as exact fractions.

Population or sample standard deviation of a list of numbers, two-pass, rounded to stated decimals.

Simple or exponential moving average over a series, one value per full window, rounded to stated decimals.

Counts for a todo list's header or footer: total, active, done, overdue, due today, percent done and "3 items left".

Safety stock in whole units, by service level and demand variability (z-score) or by max-minus-average.

Summarise probe results: sent, received, loss, min/avg/max, p95 and jitter, in whole microseconds.

Bin values into histogram bins on round edges, by Sturges' rule, Freedman-Diaconis, or a fixed width.

Round a float half away from zero to 0-12 decimal places, identically in TypeScript, Python and Rust.

Count HTTP status codes by class (1xx to 5xx) and give the server error and client error rates in basis points.

Billable utilisation and billing, collection and overall realisation rates, in basis points.

How fast an SLO's error budget is burning: the error rate as a multiple of the rate the SLO allows, in thousandths.

How much of an SLO's error budget is allowed, used and left, from good and bad event counts or seconds.

Pupil attendance and absence rates in basis points, with the DfE persistent and severe absence flags.

Stock turnover ratio, days inventory outstanding and days of cover for a period, computed exactly.

Stocking rate: livestock units and LU per hectare from animal numbers, by a published LU coefficient table.

ABC classes by annual consumption value (Pareto), with configurable cut-offs such as 80/15/5 and deterministic ties.

NEWS2 early warning score from one set of observations: parameter scores, aggregate and RCP clinical risk band.

Aggregate a metric series into fixed time buckets (count, min, max, avg, sum, last), empty buckets included.

Customer lifetime value, LTV to CAC ratio and CAC payback months from ARPA, gross margin, churn and CAC.

The overall state, headline and affected components at the top of a status page, from each component's state.

Overall equipment effectiveness (availability x performance x quality) in basis points, from times and counts.

Body surface area in m² by the Mosteller and the DuBois & DuBois formulas, to 2 decimal places.

CPD logged against a requirement for a rolling or fixed period: minutes counted, shortfall and days left.

Takt time: available production time divided by customer demand, exact and in whole seconds.

Multiwindow, multi-burn-rate SLO alerting: which rules fire, from event counts per window (Google SRE workbook).

One bar per UTC day for a status page's uptime history: seconds in each state, uptime and a colour state, oldest first.

US sales tax on a sale: the state's base rate from dated data plus a local rate the caller supplies.

Is a new metric value an outlier against its history? By z-score or by the robust median/MAD modified z-score.

Classify a device as up, degraded or down from its latency summary and loss, p95 and jitter thresholds.

Time-weighted uptime of a target over a window from its checks, with gaps longer than a limit counted as unknown.

Estimate import duty and import VAT on goods: customs value on a CIF basis, the caller's duty rate, VAT on top.

Perpetual weighted average cost: stock value and cost of sales from a movement ledger, rounding once per issue.

Hotel occupancy, average daily rate (ADR) and revenue per available room (RevPAR) for a period.

Check a driver's activities against GB/EU drivers' hours: breaks after 4.5h, daily, weekly and fortnightly driving.

How much a monotonic counter grew over a series of samples, counting restarts from zero, and its rate per second.

Capacity against routed load per work centre over a period, with efficiency, utilisation and overload flags.

Standard costing variances: material price and usage, labour rate and efficiency, favourable or adverse.

Check daily and weekly rest against GB/EU drivers' hours: 11h daily (9h reduced, 3+9 split), 45h weekly (24h reduced).

Adult body mass index (kg/m², 1 decimal place) and its NICE/WHO weight category.

Bradford factor for a set of absence spells: spells squared times total days, which weights frequent short absences.

Share a tips pool (tronc) between staff by hours worked, points, or hours times points, exactly to the penny.

Estimate a meter read for a date from the average daily consumption between two earlier reads, with rollover.

A vehicle's current value from its cost, age and mileage, on retention curves the caller supplies, exactly.

A heartbeat's state as a check status for a status page: up, late as degraded, down as down, new as nothing yet.

Whether a cron job that pings on a schedule is new, up, late or down, from its last ping, period and grace time.

Reduce a long series to a few points that keep its visual shape, by Largest-Triangle-Three-Buckets (LTTB).

A status page component's state from its checks: operational, degraded, partial or major outage, or maintenance.

Premium from a base rate times factor-table lookups, loadings and discounts, within minimum and maximum premiums.

Loyalty points for a purchase: redeem in blocks, earn on what is paid, with tier multipliers.