> For the complete documentation index, see [llms.txt](https://docs.chartsql.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.chartsql.com/charts/formatting-and-rendering/baselines.md).

# Baselines

Horizontal marks added to charts to mark major comparative values of a series like the average, median, min or max.

## Overview

ChartSQL introduces baseline marks/lines to add context and reference points to chart visualizations. These lines represent significant values such as averages, min, max, median of a series. Baselines provide visual cues for comparison against a common or target value.

See the [Baselines](/chartsql-studio/creating-charts/baselines.md) documentation

## Baseline Examples

<table data-card-size="large" data-view="cards"><thead><tr><th data-card-target data-type="content-ref"></th><th data-hidden></th><th data-hidden></th><th data-hidden></th><th data-hidden data-card-cover data-type="files"></th></tr></thead><tbody><tr><td><a href="/charts/column.md#column-with-single-baseline">Column</a></td><td></td><td></td><td></td><td><a href="https://4045370218-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FB0xzzR5x0BnQ6kHixlzd%2Fuploads%2Fs9YtqpyCAKVfmzMEKAYn%2Fbaselines_example.jpg?alt=media&amp;token=0d0eb41a-1e8e-42b5-96f7-3fe7dfd5fd9c">baselines_example.jpg</a></td></tr><tr><td><a href="/charts/column.md#column-with-multiple-baselines-for-one-series">Column</a></td><td></td><td></td><td></td><td><a href="https://4045370218-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FB0xzzR5x0BnQ6kHixlzd%2Fuploads%2F6J8L7maSfdf5TVfGcRQ2%2Fbaseline-types_example.jpg?alt=media&amp;token=45123e20-e50c-4874-be1f-122f84f72eeb">baseline-types_example.jpg</a></td></tr></tbody></table>