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Achievement: Pair ExtraordinaireAchievement: Pull Shark

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Achievement: Pair ExtraordinaireAchievement: Pull Shark

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Vortable/README.md

Wendy Graham (@Vortable)

ML Cohort 8 @ U of T DSI · Python · R · SQL

I build pipelines — data, community, and curriculum.

Now

Finishing ML program at U of T DSI. Pushing R, SQL & Guelph portfolio to GitHub soon.
Supporter of women & gender diverse people in tech (Science Riot Grrls, McMaster University, Seneca Polytechnique).

Featured: TTC Delay Prediction

5 classifiers · 20,316 incidents · XGBoost AUC 0.770
My contributions:*

  • Data cleaning pipeline — missing values, delay code standardization, outlier handling
  • 16+ presentation-ready visualizations using TTC brand colours
  • Station analysis: severity vs. frequency — two different operational problems
  • Incident type breakdown across 5 categories (Security, Equipment, Operations/Medical, Plant/Infrastructure, Transportation)

View project → · Video reflection →

Stack

Python R R Shiny SQL Hadoop XGBoost LightGBM scikit-learn
TensorFlow PyTorch pandas NumPy Seaborn Git Salesforce Airtable

Education
Machine Learning Software Foundations U of T DSI · 2026
Data Science Certificate (Distinction) U of Guelph · 2024
Neural Networks & Deep Learning DeepLearning.AI · 2024
Python Essentials Cisco · 2021
Technical & Professional Communication York University
B.Sc. Psychology York University

Communication & Curriculum
Luminance HDR tutorial 13k views →
Makerspace curriculum mockup YouTube →
Adobe Captivate e-learning Available on request

LinkedIn · Kaggle · Open to data roles where the work matters. Open to data roles where the work matters.

Popular repositories Loading

  1. Vortable Vortable Public

    Config files for my GitHub profile.

  2. scikit-learn scikit-learn Public

    Forked from scikit-learn/scikit-learn

    scikit-learn: machine learning in Python

    Python

  3. mlr3 mlr3 Public

    Forked from mlr-org/mlr3

    mlr3: Machine Learning in R - next generation

    R

  4. colab-projects colab-projects Public

    A bunch of Google Colab notebooks where I tinker with data, test out ideas.

    Jupyter Notebook

  5. kaggle-notebooks kaggle-notebooks Public

    Tinkering with Kaggle notebooks, R, Python and data

    Jupyter Notebook

  6. statistical-analysis-r-dummies statistical-analysis-r-dummies Public

    A collection of R-based exercises, scripts, and visualizations from Statistical Analysis with R For Dummies, 2nd Edition by Joseph Schmuller.