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Plotly's Python graphing library is a free, open-source library for building interactive, publication-quality charts and graphs. It supports chart types including line plots, scatter plots, bar charts, error bars, box plots, histograms, heatmaps, subplots, multiple-axes, polar charts, and bubble charts. The source is available on GitHub.
Polars is an extremely fast open-source query engine for DataFrames written in Rust, hosted as a GitHub repository under the pola-rs organization. It is built to handle large datasets, including data volumes that exceed available system RAM.
PolMine is a project providing data and code for corpus analysis. It publishes releases of the GermaParl corpus of plenary protocols of the German Bundestag, including a version covering all sessions from 1949 to 2021 in annotated form. Post updates describe incremental quality improvements to the corpus and look ahead to further work.
The polyglot notebook with first-class Scala support.
Potato is a portable annotation tool developed by davidjurgens and hosted on GitHub. It supports annotation work across a range of data types and annotation schemes, with documentation available for quick start guidance and use case details.
Powerdrill Bloom is an AI data analysis workspace with memory. It lets users ask questions across documents and databases in plain language, returning results with the page, row and figure behind them. It runs on-premise or in a private cloud. The free plan includes 1,000 daily refreshed credits and one scheduled task.
pprof is a tool for visualization and analysis of profiling data
Open-source project that supports software development with code generation, analysis, debugging, or documentation.
AI-powered tool for automated PR analysis, feedback, suggestions, and more.
A free course for people with some coding experience who want to learn how to apply deep learning and machine learning to practical problems. It includes 9 lessons of around 90 minutes each, covering computer vision, natural language processing, tabular analysis, and collaborative filtering, plus building and training models, random forests, deployment, and use of PyTorch, fastai and Hugging Face.
PrankHotline is an automatic prank calling application. It allows users to send anonymous pre-recorded prank calls to contacts, record live reactions, use a two-phone mutual call prank feature, and access premium features via a token system earned through social media engagement. All prank calls require user consent for recording.
Prash Chan is associated with the MDM – A GEEK'S POINT OF VIEW blog hosted at mdmgeek.com. The blog is run by data management expert Prash Chandramohan and covers topics including master data management, data quality, data governance, cloud, marketing, and leadership. It also offers free email subscriptions for new blog posts.
Helps find, analyze or synthesize information for research and knowledge discovery.
Independent organization publishing investigations and analysis on surveillance, privacy and digital rights.
Privacy Watch tracks privacy-focused cryptocurrencies, ranking coins such as Monero, Zcash, Zano, Pirate Chain and Litecoin by shielded market cap and dominance. It states a selection based on privacy technology, resistance to blockchain analysis, and ecosystem criteria including a market cap over $100 million. A chart covers the privacy market cap and its share of total market cap.
wireshark profiles provides Wireshark profiles or network analysis resources for packet inspection workflows.
Project Wallace is a web-based CSS analyzer that examines stylesheets for complexity, specificity, performance and design tokens. Users paste a URL or raw CSS to receive a full analysis, a quality score, a design token audit and a custom property inspector, plus a cascade layer visualizer. Standalone tools include a CSS prettifier, minifier, diff viewer and specificity calculator.
PromptEden monitors how brands appear in AI answers, compares competitors, and inspects cited sources. It also provides content creation with Eden and connects AI clients through the Model Context Protocol. Paid plans start at $49 per month.
Prospect is a UK monthly current affairs magazine offering independent, balanced analysis and long-form journalism on major stories, ideas and issues. It is published in print ten times a year and includes a website, app and podcasts.
Publish7 is a marketing tool offering AI agents for tasks such as backlink ideas, competitor landscape analysis, company research, community engagement ideas and content ideas. The site states that a free trial is available without a credit card. Paid plans list credit allowances and features such as analytics, priority processing and email support.
PyBroker is a Python framework for developing algorithmic trading strategies with a focus on machine learning. It provides a backtesting engine built in NumPy and accelerated with Numba, model training and backtesting using Walkforward Analysis, parameter optimization with Optuna, and access to historical data from Alpaca, Yahoo Finance, and AKShare. It supports Python 3.11+ on Windows, Mac, and Linux.
PyCM is a multi-class confusion matrix library written in Python. It supports input data vectors and direct matrices and offers post-classification model evaluation statistics. It is aimed at data scientists needing metrics for predictive models and classifiers. A MATLAB setup is also documented.
PyDexter is a Python wrapper for D3xter that renders charts in the browser using simple Python syntax. It supports histogram, scatter, plot, pie, timeline and bar chart examples. Installation is done with pip install PyDexter, and charts can be configured with settings such as height, width and title.
pygal is a Python charting library described as beautiful and simple python charting. Its documentation lists chart types including line, bar, histogram, XY, pie, radar, box, dot, funnel, gauge, pyramid and treemap, and output formats such as SVG, PNG and base 64 data URI.
