> For the complete documentation index, see [llms.txt](https://1ex.gitbook.io/1ex-smart-dom/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://1ex.gitbook.io/1ex-smart-dom/features/clusters/basis-for-the-clusters-design.md).

# Basis for the clusters design

The estimation of the data accumulation in candles and the understanding of the market microstructure involve some 6 design steps in constructing a cluster. 

* The Plotting Basis - it describes the input data for the cluster design.
* A cluster makes it possible to estimate the market from the point of view a specific characteristic and finally to shape a complete outline of the market.
* Each basis has an adjustment parameter. This parameter allows a user to set a particular threshold value for the cluster formation.

{% hint style="success" %}
The selection in the basis design is carried out on an additional panel in the upper left part of the workspace. By default, Time Range basis is predetermined. When you select this option, a drop-down list with the names of the remaining bases will be displayed. Next to the name of the basis on the panel there is located the corresponding Value field.
{% endhint %}

<figure><img src="/files/xDvXgOJoJaugulSnPaSU" alt=""><figcaption></figcaption></figure>

### Designed basis

* Basis - Time (in sec)&#x20;
* Basis - Volume&#x20;
* Basis - Price range&#x20;
* Basis - Volume Delta&#x20;
* Basis - Intensity
* Basis - Number of transactions

### Purposes of a basis

<table><thead><tr><th>Label </th><th>Description</th><th data-hidden></th></tr></thead><tbody><tr><td> Time (in sec)</td><td>The cluster design is based on a specified number of seconds. When the specified time value is reached, the cluster is assumed to be completed.</td><td></td></tr><tr><td>Volume</td><td>The cluster is defined by a specified value of the trading volume. When this predetermined volume value is reached, the cluster is completed.</td><td></td></tr><tr><td>Price range</td><td>A given price range involves design of this cluster. After the price arrives a given number of points, the cluster is considered as completed.</td><td></td></tr><tr><td>Volume delta</td><td>Formation of this cluster is based on the specified difference between the volumes of purchases and sales. When a predetermined value is reached, the cluster will be completed.</td><td></td></tr><tr><td>Intensity</td><td>Filled in based on price dynamics</td><td></td></tr><tr><td>Number of transactions</td><td>It is designed taking into consideration a specified number of trades. When a predetermined value is reached, the cluster will be completed.</td><td></td></tr></tbody></table>