Data Visualization Techniques for Text Data

Python offers a variety of powerful libraries for creating visualizations, including word clouds, bar charts and histograms. These visualizations can be particularly useful for analyzing text data and gaining insights into word frequency, sentiment, an…


This content originally appeared on DEV Community and was authored by Ravi

Python offers a variety of powerful libraries for creating visualizations, including word clouds, bar charts and histograms. These visualizations can be particularly useful for analyzing text data and gaining insights into word frequency, sentiment, and other characteristics.

Let's perform the visualization of the text data.

Steps to perform:

  1. Load the Text Data

  2. Preprocess the Text Data

  3. Create Word Cloud

  4. Create Bar Chart

  5. Create Histogram Chart

  • install nltk

install nltk

We will use the NLTK (Natural Language Toolkit) provides tools for text processing and analysis.

  • importing nltk and download punkt

download punkt

  • import other required packages

We use the Seaborn package which a high-level data visualization library built on top of Matplotlib.

import other packages

  • load the sample text data

Sample text data

Word Clouds

Word clouds visually represent the frequency of words in a text by varying the size and position of words based on their importance.

  • downloading package stopwords

download stopwords pkg

  • remove the stopwords from the text and create wordcloud and show

wordcloud

wordcloud image

See, this is how the visualization of this word cloud would look like. this has created the word cloud depending on the frequency of the word appearing the one that is in bigger size compared.

Now, Let's see how can we create the bar chart.

Bar Chart

Bar charts are effective for visualizing the frequency of words or phrases in a text corpus.

Barchart code

  • Bar chart

Bar Chart

I'll access the 20 most common words. We will create a plot using the above. Let's see how can we create histogram chart.

Histograms Chart

Histograms can be used to visualize the distribution of word lengths or other numerical characteristics of text data.

Histogram code

histogram

Additional Libraries:

Gensim: A library for topic modeling and document similarity.
Seaborn: A high-level data visualization library built on top of Matplotlib.

By combining these libraries and techniques, you can create informative and visually appealing visualizations to explore and understand the text data.


This content originally appeared on DEV Community and was authored by Ravi


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