# Histogram

![](https://2850417076-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-M4HLCK3olgduYoe3RVS%2Fsync%2Fde7da77f30f44ef34b6e7e0c3212bd9b35ed4f80.png?generation=1590191437361207\&alt=media)

## Column Assignments

* X-Axis - Assign a column you want to show its distribution. You can assign only a number based column here.
* Y-Axis - It is fixed to "Number of Rows". You can select how you want to show the bars at the function dropdown. See ["Ratio Mode"](#ratio-mode) for detail.
* Color - Take a look at [Color](https://docs.exploratory.io/visualization/features/color) section for more details.
* Number of Bars - Specify the number of bars. The default is `Automatic`.
* Repeat By - You can assign a column to repeat the chart for each of its values. Take a look at [Repeat By](https://docs.exploratory.io/visualization/features/small-multiple) section for more details.

## Count/Ratio Mode

You can select how to show the histogram bars at the function dropdown of Y-Axis control. The following options are available.

* Count - Each bar represents a count of the bucket. This is the default mode.
* Ratio (%) - Show the bars in ratio (%). You need to assign a column to Color.

![](https://2850417076-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-M4HLCK3olgduYoe3RVS%2Fsync%2F3c97b881d2bcaebf6826b05e83f45735ff3aa190.png?generation=1590191439788204\&alt=media)

## Cumulative Sum Reference Line

You can show the cumulative sum reference lines.

![](https://2850417076-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-M4HLCK3olgduYoe3RVS%2Fsync%2F42c3952eb46a2f6884228749127418df01edf365.png?generation=1590191437571728\&alt=media)

You can open the setting dialog from "Show Cumulative Sum" menu at Y-Axis.

![](https://2850417076-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-M4HLCK3olgduYoe3RVS%2Fsync%2F7e16d2090d192dacf62a133a8360e6a86991b7f7.png?generation=1590191438431887\&alt=media)

Following options are available.

* Type
  * Cumulative Sum - Cumulative sum of bars.
  * Cumulative Sum Ratio (%) - Ratio of the cumulative sum values against the total value. Lines start from 0% and end with 100%.
* Number of Decimal Digits - Number of decimal digits for the cumulative sum lines.
  * Line Width: Thickless of the line.
* Line Style
  * Solid
  * Dotted
  * Dot and Dash

## Highlight

You can change the color of the specific markers such as bars, lines or circles that you pick to stand out from others. See [Highlight](https://docs.exploratory.io/visualization/features/highlight-1) for the detail.

## Category

You can categorize numeric values inside the chart. See [Category(Binning)](https://docs.exploratory.io/visualization/features/category) for the detail.

## Limit Values

You can use Limit Values to filter the categories by the aggregated values. See [Limit Values](https://docs.exploratory.io/visualization/features/limit) for the detail.

## 'Others' Group

If you have many categories, you can reduce the number of categories by changing some category names to 'Others' using the 'Others' Group feature. See ['Others' Group](https://docs.exploratory.io/visualization/features/others-group) for the detail.

## Missing Value Handling

You can use the Missing Value Handling feature to control missing values. See [Missing Value Handling](https://docs.exploratory.io/visualization/features/missing-value-handling) for the detail.

## Show Detail

You can show the detailed data underlying the chart by clicking the chart figure. See [Show Detail](https://docs.exploratory.io/visualization/features/show-detail) for the detail.

## Layout Configuration

Take a look at [Layout Configuration](https://docs.exploratory.io/visualization/features/layout) on how to configure the layout and format.

## Save as an Image

You can save the chart as an image file. See [Save as PNG/SVG](https://docs.exploratory.io/visualization/features/save) for more details.