# Sentiment Analysis

## 😄 What is sentiment analysis

Using sentiment analysis you can generate a sentiment based on a natural free text entered by the respondent in one of your text based answers like fields for example. This way you can have a insight of the respondent's sentiment about a particular topic without having to to use a closed question to get his feedback.

## 🚀 Enabling sentiment analysis 

You can enable sentiment analysis on any [field answer type](/form-management/form-designer/questions/question-types/standard/text-comment-field.md) of your questions surveys using the **Compute sentiment** property of your answer.

![](/files/-MBZwz17edcghYW5t8GD)

{% hint style="warning" %}
Enabling the **Compute sentiment** will retroactively rate all the pre-existing respondent answers that were not rated yet.
{% endhint %}

Once you have enabled the sentiment on the answer ngSurvey will analyse all respondent answers and rate them according to a sentiment. An answer can be rated with following sentiments.

* Positive
* Neutral
* Negative
* Mixed

For example if a respondent would have been rated as Positive if the respondent entered following text.

![](/files/-MBZxlyVgD0yrvz2IDrF)

## 📊 Sentiments reporting

Once the sentiments have been calculated you may analyze the results in 2 different ways.

Either using the [text reports](/form-management/reports/text-reports.md) which will displays "smileys" next to each response to identify the sentiment of the respondent.

![](/files/-MB_-8HRLLR25mCAlW0r)

You can filter out the answers by a given sentiment category using the sentiment filter buttons

![](/files/-MB_-M12Uieqrf3Sgwy-)

You may also use the [Sentiment index report](/form-management/reports/report-builder/report-items/sentiment-index.md) to display a [sentiment index](/form-management/reports/report-builder/report-items/sentiment-index.md) ranging from -10 (very negative) to +10 (very positive).

![](/files/-MBZzgsulR1szcr7E39b)

{% hint style="info" %}
The last 25 sentiments of all the enabled sentiment answer is also displayed by default in the [overview dashboard](/form-management/overview-reports.md).
{% endhint %}

{% hint style="warning" %}
Sentiment analysis requires that you have linked ngSurvey [third party API settings](/installation-setup/system-settings/third-party-apis/microsoft.md) to the Microsoft Text Analysis API or to enable your [AI Suite](/ai-suite.md).
{% endhint %}


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