Startup Data Science

Misha Lisovich

November 12, 2014

Outline

I What is data science?I Startup data science!I Tableau hands-onI Questions

What is Data Science?

What is Data Science?

Startup Data Science | Use Data to . . .

1. Answer questions2. Rapid prototype3. Pitch!

Workflow

Workflow

Workflow

Tidy Data

I Data that’s easy to transform, visualise and modelI Key idea: store variables in a consistent way, always as columnsI Useful tools to tidy messy data: gather, spread and separate.I Google “tidy data” for more details.

Data Manipulation | + group by

I select: pick columns by nameI filter: keep rows matching criteriaI arrange: reorder rowsI mutate: add new variablesI summarise: reduce variables to values

Tableau Hands-On

Learn More

I TableauI Video tutorials

I R UniverseI TryR interactive tutorialI Tidy Data (tidyr)I Data Manipulation (dplyr)I Graphing & Visualization (ggvis)

I Python UniverseI Data Manipulation (Pandas)I Graphing & Visualization (matplotlib)

Thank You!

I Questions?