Visualize error bars: easy guide, free example

Display supplied lower and upper bounds as capped intervals; the renderer does not estimate uncertainty from raw observations.

Visualize error bars: easy guide, free example. Explore the public-data example; methods and data notes are below.
Explore the public-data example; methods and data notes are below.Download chart SVG

What this helps you see

Show two mapped interval bounds. These are bounds, not inferred confidence intervals.

A practical use case

Display supplied lower and upper bounds as capped intervals; the renderer does not estimate uncertainty from raw observations.

Supply the lower and upper bounds as the first two measures in order. The current range/error-bar representation draws those endpoints; it does not infer a confidence level or estimate a central value from raw observations.

Free example data and exact column mapping

The figure uses the downloadable CSV with the exact column mapping below. Public snapshots retain their data notes and transformations. Constructed teaching scenarios are identified in the method notes; they are not customer results. Editorial layouts may combine comparisons from the same records.

The free example contains 20 observations and these columns: Month, Lowest index, Highest index. Keep the header row and preserve one observation per row. The table below shows the first records; the CSV retains the full example.

Yahoo Finance · stored monthly-close snapshot, 2020–2024

Download free example CSV

Illustrative data, not research findings
MonthLowest indexHighest index
2020-01100100
2020-0436.53995277499613106.39964149317076
2020-0778.10317956784274124.00025387293104
2020-1069.41427455831526118.7630295924684
2021-01101.24127108728118116.70352014252668
2021-04111.67476934155832129.6277777399326

How to use it in Datamon

  1. Sign in with Google, create a visualization and import the free CSV in Data. Check numeric columns, date order, decimal separator and missing values against the example table.
  2. In Visualize, choose Error bars. Connect the required columns exactly as listed below, then inspect at least two marks against the data. Optional roles are available only when the chosen type exposes them.
  3. Keep the observation unit and reporting period explicit. Select the figure size before adjusting text, and check the chart at the size your reader will see.

Column mapping

Categories / observation labels
Month
Measures (in order)
Lowest index, Highest index

How to read the example

Compare positions and values with the table, then inspect the legend or size encoding where used. A visual pattern is a description of the displayed observations. It does not by itself identify a cause, justify extrapolation, or repair missing data.

Refine and export the result

In Refine, edit the title, subtitle, axis descriptions, source and supported series settings. Use color to identify a comparison rather than to decorate every mark. Export SVG, PNG, JPEG, PDF or PowerPoint and inspect the actual file; save an editable project backup for revisions.

Limits and common mistakes

Range views require a stated meaning for every bound. Keep measures in the same unit and preserve their required order. A displayed interval may be an observed range, supplied scenario band or another quantity; its shape does not define statistical confidence.

This visualization is experimental in Datamon. Its current renderer and input contract are shown here, but validate the result with your own data before using it in a report. Specialized settings can differ from the stable chart types.

What is free and what needs an account?

Reading this guide and downloading its CSV and chart images are free. Datamon currently has no paid checkout or subscription plans in this deployment. Creating and saving an editable visualization requires Google sign-in. Provider-backed AI, cloud analysis, publishing and video depend on configured services; this guide does not promise unlimited free connected services.

Questions before you start

Can I visualize error bars with a free example?

Yes. The CSV and preview images on this page are free to download. Follow the field mapping and steps above. Sign in to create and save the editable project; connected-service availability is separate.

Can I replace the example with my own data?

Yes. Preserve the observation unit and the required numeric, category or geographic fields. Recompute any derived values, update the unit and source, and compare the output with known rows before sharing.

Sources and further reading

Report a correction or an access barrier: Email the editorial contact.

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