sotu-analysis / app.py
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from collections import Counter
import gradio as gr
from datasets import load_dataset
from nltk.util import ngrams
import pandas as pd
import plotly.express as px
import plotly.graph_objects as go
from plotly.subplots import make_subplots
from matplotlib import pyplot as plt
from wordcloud import WordCloud
# Load the dataset and convert it to a Pandas dataframe
sotu_dataset = "jsulz/state-of-the-union-addresses"
dataset = load_dataset(sotu_dataset)
df = dataset["train"].to_pandas()
# Do some on-the-fly calculations
# calcualte the number of words in each address
df["word_count"] = df["speech_html"].apply(lambda x: len(x.split()))
# calculate the automated readibility index reading ease score for each address
# automated readability index = 4.71 * (characters/words) + 0.5 * (words/sentences) - 21.43
df["ari"] = df["no-contractions"].apply(
lambda x: (4.71 * (len(x.replace(" ", "")) / len(x.split())))
+ (0.5 * (len(x.split()) / len(x.split("."))))
- 21.43
)
# Sort the dataframe by date because Plotly doesn't do any of this automatically
df = df.sort_values(by="date")
written = df[df["categories"] == "Written"]
spoken = df[df["categories"] == "Spoken"]
"""
Helper functions for Plotly charts
"""
def plotly_ngrams(n_grams, potus):
if potus is not None:
# Filter on the potus
potus_df = df[df["potus"] == potus]
# Create a counter generator for the n-grams
trigrams = (
potus_df["tokens-nostop"]
.apply(lambda x: list(ngrams(x, n_grams)))
.apply(Counter)
.sum()
)
# get the most common trigrams
common_trigrams = trigrams.most_common(10)
# unzip the list of tuples and plot the trigrams and counts as a bar chart
trigrams, counts = zip(*common_trigrams)
# join the trigrams into a single string
trigrams = [" ".join(trigram) for trigram in trigrams]
# create a dataframe from the trigrams and counts
trigrams_df = pd.DataFrame({"trigrams": trigrams, "counts": counts})
fig4 = px.bar(
trigrams_df,
x="counts",
y="trigrams",
title=f"{potus}'s top {n_grams}-grams",
orientation="h",
height=400,
)
return fig4
def plotly_word_and_ari(president):
if president != "All" and president is not None:
potus_df = df[df["potus"] == president]
fig5 = make_subplots(specs=[[{"secondary_y": True}]])
fig5.add_trace(
go.Scatter(
x=potus_df["date"],
y=potus_df["word_count"],
name="Word Count",
),
secondary_y=False,
)
fig5.add_trace(
go.Scatter(
x=potus_df["date"],
y=potus_df["ari"],
name="ARI",
),
secondary_y=True,
)
# Add figure title
fig5.update_layout(title_text="Address Word Count and ARI")
# Set x-axis title
fig5.update_xaxes(title_text="Date of Address")
# Set y-axes titles
fig5.update_yaxes(title_text="Word Count", secondary_y=False)
fig5.update_yaxes(title_text="ARI", secondary_y=True)
return fig5
def plt_wordcloud(president):
if president != "All" and president is not None:
potus_df = df[df["potus"] == president]
lemmatized = potus_df["lemmatized"].apply(lambda x: " ".join(x))
# build a single string from lemmatized
lemmatized = " ".join(lemmatized)
# create a wordcloud from the lemmatized column of the dataframe
wordcloud = WordCloud(background_color="white", width=800, height=400).generate(
lemmatized
)
# create a matplotlib figure
fig6 = plt.figure(figsize=(8, 4))
# add the wordcloud to the figure
plt.tight_layout()
plt.imshow(wordcloud, interpolation="bilinear")
plt.axis("off")
return fig6
# Create a Gradio interface with blocks
with gr.Blocks() as demo:
# Build out the top level static charts and content
gr.Markdown(
"""
# A Dashboard to Analyze the State of the Union Addresses
This dashboard provides an analysis of all State of the Union (SOTU) addresses from 1790 to 2020 including written and spoken addresses. The data is sourced from the [State of the Union Addresses dataset](https://huggingface.co/jsulz/state-of-the-union-addresses) on the Hugging Face Datasets Hub. You can read more about how the data was gathered and cleaned on the dataset card. To read the speeches, you can visit the [The American Presidency Project's State of the Union page](https://www.presidency.ucsb.edu/documents/presidential-documents-archive-guidebook/annual-messages-congress-the-state-the-union) where this data was sourced.
"""
)
# Basic line chart showing the total number of words in each address
with gr.Row():
gr.Markdown(
"""
## The shape of words
The line chart to the right shows the total number of words in each address. However, not all SOTUs are created equally. From 1801 to 1916, each address was a written message to Congress. In 1913, Woodrow Wilson broke with tradition and delivered his address in person. Since then, the addresses have been a mix of written and spoken (mostly spoken).
The spikes you see in the early 1970's and early 1980's are from written addresses by Richard Nixon and Jimmy Carter respectively.
"""
)
fig1 = px.line(
df,
x="date",
y="word_count",
title="Total Number of Words in Addresses",
line_shape="spline",
)
fig1.update_layout(
xaxis=dict(title="Date of Address"),
yaxis=dict(title="Word Count"),
)
gr.Plot(fig1, scale=2)
# group by president and category and calculate the average word count sort by date
avg_word_count = (
df.groupby(["potus", "categories"])["word_count"].mean().reset_index()
)
# Build a bar chart showing the average number of words in each address by president
fig2 = px.bar(
avg_word_count,
x="potus",
y="word_count",
title="Average Number of Words in Addresses by President",
color="categories",
barmode="group",
)
fig2.update_layout(
xaxis=dict(
title="President",
tickangle=-45, # Rotate labels 45 degrees counterclockwise
),
yaxis=dict(
title="Average Word Count",
tickangle=0, # Default label angle (horizontal)
),
legend=dict(orientation="h", yanchor="bottom", y=1.02, xanchor="right", x=1),
)
gr.Markdown(
"""
Now that we have a little historical context, what does this data look like if we split things out by president? The bar chart below shows the average number of words in each address by president. The bars are grouped by written and spoken addresses.
"""
)
gr.Plot(fig2)
# Create a line chart showing the Automated Readability Index in each address
with gr.Row():
ari = df[["potus", "date", "ari", "categories"]]
fig3 = px.line(
ari,
x="date",
y="ari",
title="Automated Readability Index in each Address",
line_shape="spline",
)
fig3.update_layout(
xaxis=dict(title="Date of Address"),
yaxis=dict(title="ARI Score"),
)
gr.Plot(fig3, scale=2)
gr.Markdown(
"""
The line chart to the left shows the Automated Redibility Index (ARI) for each speech by year. The ARI is calculated using the formula: 4.71 * (characters/words) + 0.5 * (words/sentences) - 21.43. In general, ARI scores correspond to U.S. grade levels. For example, an ARI of 8.0 corresponds to an 8th grade reading level.
While there are other scores that are more representative of attributes we might want to measure, they require values like syllables. The ARI is a simple score to compute with our data.
The drop off is quite noticeable, don't you think? ;)
"""
)
gr.Markdown(
"""
## Dive Deeper on Each President
Use the dropdown to select a president a go a little deeper.
To begin with, there is an [n-gram](https://en.wikipedia.org/wiki/N-gram) bar chart built from all of the given president's addresses. An n-gram is a contiguous sequence of n items from a given sample of text or speech. Because written and spoken speech is littered with so-called "stop words" such as "and", "the", and "but", we've removed these from the text.
The slider only goes up to 4-grams because the data is sparse beyond that. I personally found the n-grams from our last three presidents to be less than inspiring and full of platitudes. Earlier presidents have more interesting n-grams.
Next up is a word cloud of the lemmatized text from the president's addresses. [Lemmatization](https://en.wikipedia.org/wiki/Lemmatization) is the process of grouping together the inflected forms of a word so they can be analyzed as a single item. Think of this as a more advanced version of [stemming](https://en.wikipedia.org/wiki/Stemming) where we can establish novel links between words like "better" and "good" that might otherwise be overlooked in stemming.
You can also see a line chart of word count and ARI for each address.
"""
)
# get all unique president names
presidents = df["potus"].unique()
# convert presidents to a list
presidents = presidents.tolist()
# create a dropdown to select a president
president = gr.Dropdown(label="Select a President", choices=presidents)
# create a slider for number of word grams
grams = gr.Slider(minimum=1, maximum=4, step=1, label="N-grams", interactive=True)
# show a bar chart of the top n-grams for a selected president
if president != "All" and president is not None:
gr.Plot(plotly_ngrams, inputs=[grams, president])
if president != "All" and president is not None:
gr.Plot(plt_wordcloud, scale=2, inputs=[president])
# show a line chart of word count and ARI for a selected president
if president != "All" and president is not None:
gr.Plot(plotly_word_and_ari, inputs=[president])
demo.launch(share=True)