Data Visualization Techniques  (Word-Cloud)

No matter how insightful data you have if there is no action taken on it.

Only way to get attention for this data is to get a HiPPO (Highest Paid Person in the Office) onboard.

The thing with HiPPOs is they don't have time to go through excel sheets full of data. To give them an idea of the importance of your insights, you need to showcase the power of data beyond just numbers, and this is where data visualization comes into picture. Through this, they can get a concrete summary in a single glance.

Creating Data Visualizations is very easy nowadays, you just have to decide which one will represent your data in the best way.

This is the first post of the data visualization techniques series. In this series, I will post some, off the track data visualization techniques.

Word-Cloud

Wordcloud is generally used for plotting frequency of any word in the text or doucment etc but you can use it to plot any frequency data.

We are taking an example of frequency of words used in a movie (The Lord of the Rings-The Fellowship of the Ring)

Our end product will look like:

1. Getting the Picture in required format:

2. Plot the data over this Image:

We will have to import 3 python libraries, "Image" to open and read the image, "numpy" to convert image trace to mathematical array which gives information in where to plot, and last "WordCloud" which will plot the data using the information provided.

from PIL import Image

import numpy as np

from wordcloud import WordCloud

#Open your image

lotr_mask = np.array(Image.open(image))

wc = WordCloud(background_color="white", max_words=2000, mask=lotr_mask)

# generate word cloud

wc.generate(text)

# store to file

wc.to_file(out_image)

And Walah ! You wordcloud is ready.

You can learn more about WordCloud library here

Do not underestimate Data Visualization. With proper usage of this technique, you will be surprised with the amount of attention your data will start receiving.

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