How to remove 0% from pie chart

Question

I am working with text data to find the sentiment analysis. I have a data frame of sentiment score of each sentence. Using this data i am creating a pie chart but it shows the 0% in the graph. I am not able to understand the meaning of this 0%. Here is my data frame df1:

            score
Negative    100.0
Neutral     0.0
Positive    0.0

and here is my code for creating a pie chart:

import matplotlib.pyplot as plt
import os
plt.figure(figsize=(4,3))
df1.plot(kind='pie', autopct='%1.1f%%', subplots=True,startangle=90,  legend = False, fontsize=14)
plt.axis('off')
plt.show()

and here is my output plot:

How can I remove this 0% from my plot?

Answer 1

Sorry, for a very 'actual' answer.

Then you give

df1.plot(kind='pie', autopct='%1.1f%%', subplots=True,startangle=90,  legend = False, fontsize=14)

It takes full df with zeroes, like [100,0,0] You can filter df, as un answer above but you can use lambda function in autopct as well:

df1.plot(kind='pie', autopct=lambda p: '{:.1f}%'.format(round(p)) if p > 0 else '', subplots=True,startangle=90,  legend = False, fontsize=14)

Answer 2

I think you can just filter the dataframe to remove rows where score is zero.

df_to_plot = df1.loc[lambda df: df['score'] == 0]