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How to use ChatGPT for data analysis

By Nick Barth

Updated on March 6, 2024

The advent of AI and machine learning has opened up a vast array of possibilities in the field of data analysis. One particularly versatile tool at the disposal of analysts today is ChatGPT—a language generation model that excels in interpreting and generating human-like text. Below, we will explore how ChatGPT can be applied to various data analysis use cases such as sentiment analysis, understanding customer churn, and cleaning datasets.

Sentiment analysis using ChatGPT

Sentiment analysis involves evaluating text data to determine the emotional tone behind a series of words. This can be extremely useful in gauging public opinion, customer satisfaction, and market research. Here's how you can leverage ChatGPT for sentiment analysis:

  1. Collecting data: Gather texts such as reviews, tweets, or any user-generated content.
  2. Feeding data: Input the text data into ChatGPT and prompt the model to classify the sentiment expressed in each instance. For instance, ask, "Is the sentiment of this statement positive, negative, or neutral?"
  3. Interpreting results: Once ChatGPT provides sentiment classifications, aggregate and interpret the data to gauge overall sentiment or to understand sentiment trends.

Analyzing customer churn with ChatGPT

Understanding why customers discontinue their relations with a service or product can be pivotal for business strategy. ChatGPT can assist in analyzing customer churn by:

  1. Input churn data: Churn data often includes reasons for leaving, service duration, and customer feedback. Input these data points into the model.
  2. Generating insights: Pose questions to ChatGPT to extract patterns or common reasons for churn from the dataset. For example, "What are the top reasons for customers ending their subscriptions according to this data?"
  3. Predictive modeling: While ChatGPT isn't a predictive modeling tool like a traditional data analysis software, you can use it to craft scripts for predictive models or to interpret model outputs from other software.

Cleaning datasets with ChatGPT

Before any analysis, datasets often require cleaning to remove inaccuracies, duplicates, or irrelevant data. ChatGPT can be a valuable assistant in this regard.

  1. Outline data issues: List down the common data issues you encounter in your datasets, such as missing values, incorrect formats, or irrelevant entries.
  2. Develop cleaning scripts: Ask ChatGPT to provide code snippets or algorithms that can help clean specific types of data issues. If you're using Python, you might ask, "Can you generate a Python script to replace all missing values with the median of the column?"
  3. Explanation and validation: After running the scripts, you can ask ChatGPT to explain the changes made to the dataset to ensure proper understanding and validation of the cleaning process.


ChatGPT is a versatile tool that, while not a replacement for traditional data analysis software, can play a supportive role in carrying out complex tasks involving text-based data. It can augment an analyst's capabilities by providing instant insights, generating codes, explaining outputs, and guiding decision-making processes.

When using ChatGPT for data analysis, bear in mind its limitations, particularly in area-specific knowledge that traditional data analysis tools provide. Always validate the responses and consider them as part of a larger analytical framework that includes various data validation and modeling strategies.

Tips for Effective Use of ChatGPT in Data Analysis

  • Provide clear context: To obtain relevant responses, give precise instructions and context to the model.
  • Validation is key: Always validate the outputs from ChatGPT with your datasets and analysis.
  • Use as a support tool: Integrate ChatGPT within your broader data analysis framework for the best results.
  • Experiment with prompts: You might need to refine your questions or prompts a few times to get the desired output.

With the right approach and understanding, ChatGPT can be an invaluable asset in the data analyst's toolkit.

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