---
title: Dendrogram
order: 14
---
Dendrogram arranges all the leaves on the same level. It is appropriate for hierarchical clustering. It does not consider the node size, which will be regarded as 1px.
## direction
**Type**: String
**Options**: 'LR' | 'RL' | 'TB' | 'BT' | 'H' | 'V'
**Default**: 'LR'
**Required**: false
**Description**: The direction of layout.
- TB —— Root is on the top, layout from the top to the bottom
- BT —— Root is on the bottom, layout from the bottom to the top
- LR —— Root is on the left, layout from the left to the right
- RL —— Root is on the right, layout from the right to the left
- H —— Root is on the middle, layout in horizontal symmetry.
- V —— Root is on the middle, layout in vertical symmetry.
## nodeSep
**Type**: Number
**Default**: 0
**Required**: false
**Description**: Node separation
## rankSep
**Type**: Number
**Default**: 0
**Required**: false
**Description**: Level separation
## radial
**Type**: Boolean
**Default**: false
**Required**: false
**Description**: Wheter layout the graph in radial style. If `radial` is `true`, we recommend to set `direction` to `'LR'` or `'RL'`: