Results for “charts”

Chart layout: the plot area inside margins, legend items wrapped into rows, and greedy label collision avoidance.

Stack several series for stacked bars and areas: on zero, normalised to 100%, or diverging around zero.

Complete line chart geometry as data: plot area, number or date axes, gridlines, series paths, colours, legend.

Complete bar chart geometry as data, grouped or stacked: plot area, axes, gridlines, bar rectangles, colours, legend.

Axis and label text for charts: tick numbers, SI prefixes (1.2k, 3.4M), percentages, dates and money.

Axis geometry as data: tick positions, tick marks, label anchors and gridlines for number, time and category axes.

A categorical palette of n colour-blind-safe colours for chart series: Okabe-Ito or Paul Tol's bright scheme.

A sparkline's SVG path and end marker from a series, fitted into a box, with gaps left as breaks.

SVG path strings for lines, areas, steps, monotone curves, bars, arcs and pie slices, identical in every language.

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

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

The minimum and maximum of a series as [min, max], skipping gaps (null), or null when there is no value.

Axis ticks: a round step (1, 2 or 5 x 10^k), the ticks on it, and calendar ticks from days to years.

WCAG 2.x contrast ratio between two colours, and which text colour reads best on a background.

The colour at a point along a sequential or diverging ramp, mixed in OKLab so steps look even; hex in, hex out.

Map data values onto screen positions and back: linear, log, time, band and point scales, and nice domains.

Hex colours to RGB and back, and sRGB channels to linear light and back, identically in every language.

Age in completed months and days on a given date, for paediatric charts and doses; month ends handled like birthdays.

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

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

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

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

Check a double-entry journal: debits equal credits, no zero or two-sided lines, one currency, well-formed account codes.

Trial balance from journal lines: debit or credit balance per account, and proof that debits equal credits.

Logo churn, gross and net revenue churn, and gross and net revenue retention for one period, in basis points.

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

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

Each holding's share of a portfolio and its drift from a target weight, in basis points, from exact arithmetic.

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

Exact fraction arithmetic, always reduced, for rates and ratios that must not drift.

Crop yield per hectare and per acre from harvested quantity and field area in any area unit, exactly, as decimal text.

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

Write todos as a CSV file (RFC 4180) with one column per field, for backups, spreadsheets and other apps.

Stably sort records by one key, ascending or descending, with a total order across mixed types.

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

Group records by the value at one key, preserving input order inside each group.

The todos a list view shows: all, active or completed, optionally one tag, and a search box, in input order.

Split todos into Overdue, Today, Tomorrow, This week, Later, No date and Done sections, in that order.

Sort todos by manual order, due date, priority, creation time or title, stably, with sensible tie-breakers.

How many todos carry each tag, for a tag sidebar: most used first, open todos only unless asked.

Find timetable clashes: overlapping sessions that share a room, a teacher or a student group, in a fixed order.

Split a list into consecutive batches of at most n items, in order; the last batch may be short.

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

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

Cycle count schedule: spread each item's counts evenly over the working days of a period, by ABC class frequency.

Slice a list into a 1-based page and report the totals an API response needs.

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

Compare two lists of records by key: which were added, which removed, and which changed and in what fields.

English text for a repeating todo's chip: "Every weekday", "Every 2 weeks on Monday", "Every month on the 31st".

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

Tuition fee instalment schedule from a total, shares and due dates, exact to the penny.

Collection dates for a regular gift: monthly, quarterly or annual on a day, clamped to short months, after a lead time.

Age at policy inception and the rating band it falls in, from a table of age bands.

Turn a series of up, degraded and down checks into incidents, ignoring runs too short to confirm.

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

The next due date of a repeating todo once it is done: daily, weekdays, weekly, monthly or yearly, month-end safe.

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

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

The next n dates of a repeating rule: monthly on a day, last weekday of the month, every k days or weeks, yearly.

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

Cost half-hourly consumption against time-of-use rates: Economy 7 windows or Agile-style half-hourly prices.

The to-do list reducer: add, edit, complete, remove, clear and reorder todos, each returning a new list.