How to Save a Pandas DataFrame as a PNG Image?

Saving a Pandas DataFrame as a PNG Image

Saving a Pandas DataFrame as an image can be useful for presenting data in a visually accessible format. While HTML conversion can provide a solution, this article focuses on creating a PNG image.

Solution

By utilizing matplotlib, Pandas allows for table plotting. To save a table as a PNG image without unnecessary aesthetics, follow these steps:

<code class="python">import matplotlib.pyplot as plt
import pandas as pd
from pandas.plotting import table

# Suppress axes and labels
ax = plt.subplot(111, frame_on=False)
ax.xaxis.set_visible(False)
ax.yaxis.set_visible(False)

table(ax, df)  # Replace 'df' with your DataFrame

# Save the plot as a PNG
plt.savefig('mytable.png')</code>

Multi-Index Simulation

To simulate multi-indexes when applying the above method:

1. Reset the multi-indexes to normal columns:

   <code class="python">df = df.reset_index()</code>

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2. Remove duplicate higher-order multi-index columns:

   <code class="python">df.ix[df.duplicated('first') , 'first'] = ''</code>

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3. Replace multi-index column names with empty strings:

   <code class="python">new_cols = df.columns.values
   new_cols[:2] = '',''
   df.columns = new_cols</code>

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4. Set table row labels to empty strings (to suppress display):

   <code class="python">table(ax, df, rowLabels=['']*df.shape[0], loc='center')</code>

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With these adjustments, a multi-indexed table can be represented as a PNG image.

Deprecation Warnings

• The pandas.tools.plotting import for table is deprecated. Use pandas.plotting instead.
• The ix indexer is deprecated. Use loc instead.

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