A project by Udacity's Data Analyst Nanodegree to gather data via web scraping from twitter, assessing and cleaning the data.
Data wrangling, which consists of:
- Gathering data (downloadable file in the Resources tab in the left most panel of your classroom and linked in step 1 below).
- Assessing data
- Cleaning data
- Storing, analyzing, and visualizing the wrangled data
- Reporting on 1) your data wrangling efforts and 2) your data analyses and visualizations
Gather each of the three pieces of data as described below in a Jupyter Notebook titled wrangle_act.ipynb
:
-
The WeRateDogs Twitter archive: Already given as
twitter_archive_enhanced.csv
-
The tweet image predictions: i.e., what breed of dog (or other object, animal, etc.) is present in each tweet according to a neural network. This file (image_predictions.tsv) is hosted on Udacity's servers and should be downloaded programmatically using the Requests library and the following URL: https://d17h27t6h515a5.cloudfront.net/topher/2017/August/599fd2ad_image-predictions/image-predictions.tsv
-
Each tweet's retweet count and favorite ("like") count at minimum, and any additional data you find interesting: Using the tweet IDs in the WeRateDogs Twitter archive, query the Twitter API for each tweet's JSON data using Python's Tweepy library and store each tweet's entire set of JSON data in a file called tweet_json.txt file. Each tweet's JSON data should be written to its own line. Then read this .txt file line by line into a pandas DataFrame with (at minimum) tweet ID, retweet count, and favorite count.
After gathering each of the above pieces of data, assess them visually and programmatically for quality and tidiness issues. Detect and document at least eight (8) quality issues and two (2) tidiness issues in your wrangle_act.ipynb
Jupyter Notebook.
Clean each of the issues you documented while assessing. Perform this cleaning in wrangle_act.ipynb
as well. The result should be a high quality and tidy master pandas DataFrame (or DataFrames, if appropriate).
Store the clean DataFrame(s) in a CSV file with the main one named twitter_archive_master.csv. If additional files exist because multiple tables are required for tidiness, name these files appropriately. Additionally, you may store the cleaned data in a SQLite database (which is to be submitted as well if you do).
Done in analysis.ipynb
Jupyter Notebook. At least three (3) insights and one (1) visualization must be produced.
-
Create a 300-600 word written report called
wrangle_report.html
that briefly describes your wrangling efforts. This is to be framed as an internal document. -
Create a 250-word-minimum written report called
act_report.html
that communicates the insights and displays the visualization(s) produced from your wrangled data. This is to be framed as an external document, like a blog post or magazine article, for example.
Both of these documents can be created in separate Jupyter Notebooks using the Markdown functionality of Jupyter Notebooks, then downloading those notebooks as PDF files or HTML files (see image below). You might prefer to use a word processor like Google Docs or Microsoft Word, however.
twitter-archive-enhanced.csv
: Given archived dataset for dog ratings scraped via tweetwrangle_act.ipynb
: The Jupyter notebook consisting of all Data Wrangling stepswrangle_report.html
: The final report in slides format of thewrangle_act.ipynb
twitter_archive_master.csv
: Final cleaned tweets with all databases combined (containes no retweets or replies)final_retweets.csv
: Final cleaned retweetsfinal_replies.csv
: Final cleaned repliestweet_json.csv
,tweet_json.txt
andimage-predictions.tsv
created in intermediate steps of Data Gatheringanalysis.ipynb
: Jupyter notebook consisiting of basic initial analysis of the finaltwitter_archive_master.csv
act_report.html
: The final report in slides format ofanalysis.ipynb
- numpy
- pandas
- matplotlib
- seaborn
- requests
- tweepy
- os