Pre-processing for Data 620, project 2

MSigDb hallmark gene set network analysis pre-processing

Exploration of the Titanic data, including explain why did certain transformations, for Data 622.

California has very detailed publicly available data on both rates of vaccine-preventable diseases as well as immunization rates, which here will be juxtaposed visually.

CUNY Data 608 final project proposal

Took an example science graphic from the ACT and used it as an example of how to make this data clearer.

Show how to make "fun" graphics that still have relatively good data-to-ink ratio (or not).

My take on the Kaggle House Prices dataset

Data 605 Final Problem 1

Based on data from Kaggle. House Prices: Advanced Regression Techniques competition. Available here: https://www.kaggle.com/c/house-prices-advanced-regression-techniques

Discussion #15

Discussion #14

Discussion #13

Data 605 discussion 10

Data 605 discussion 9

Expected value discussion

Week 6 discussion contribution

Discussion #5

Discussion #4

Textbook example from Data 605 to show that A - (lambda * identity matrix( vs. (lambda*identity matrix) - A produces same result when calculating eigenvector.

Data 605 - Discussion DM.C24

The dataset to be used to build predictive text models includes a number of blog posts, news articles (or blurbs), and tweets in English. In the milestone report, the task is to read in the data, perform some exploratory analysis, and summarize a basic outline of a plan for using the data to create a prediction algorithm and Shiny app.

Data 621 - HW #5

Data 621 - HW #4

Data 621 - Homework 3

Modeling US special election outcomes in 2017-2018 as a function of 2016 election results. Final project for DATA 606.

Data sources for this report will include: A CSV file with weekly ridership data broken down by station from 2010 to 2018. A CSV file with monthly rates of delays broken down by subway line, from 2009 to 2017. Google News API results searching for “MTA” from select news sources (Gothamist, NY Daily News, NY Post, etc.) from the past three months (roughly February-April 2018) One major question to be answered is how changes in ridership relate to quality of service? In other words, do New Yorkers exhibit some elasticity of demand in response to delays? Or is demand mostly inelastic? Another question will be to quantify the tone of media reports about the MTA, and compare to performance data to see if the tone matches the data.

Data 606 lab 8

Data 606 Homework 8

Tidyverse recipe for Data 607. Manually adjust colors corresponding to a variable using scale_colour_manual or scale_fill_manual.

Data 606 Lab 7

Data 606 Homework 7

Data 606 final project proposal to analyze special and standard election data from January 2017 to March 2018.

Data 606 Lab 6

Data 606 Chapter 6 Homework

Homework question that uses paired temperature measurements to see if this data set supports a hypothesis of increased temperatures over time.

Using the New York Times Article Search API to get R data frames with articles about Facebook from around the time of a recent (Cambridge Analytica) and older (psychological experiment) scandal.

Data 606 Lab 5

Data 606 Chapter 5 Homework

Joint effort with myself and Raj Kumar from Data 607. After web scraping Indeed.com to get several hundred resumes each for New York and San Francisco data scientist job seekers, here we use text processing to look for the most frequently listed skills by job seekers in each city and across cities.

Data 607 - project 3 draft

Data 607 assignment

Data 606 - Lab 4b

Data 606 - Lab 4a

Data 606 - Homework 4

Edited version of previous Rpubs where I tidied and analyzed a data set of time use by country. Will replace the old Rpubs with this one when assignment is done being graded (this is for Data 607, project 2).

Data 607 - project 2 dataset 2

Data 607 - project 2

Data 607 - project 2

Data 607 assignment 5

The normal distribution (Data 606 Lab 3)

Distributions of Random Variables - Data 606 Homework 3

Summarizing Chess Tournament Info using R and Regular Expressions. Data 607, project 1.

Slides to pitch a Shiny app to tell which region of Italy an olive oil is from given its chemical composition.

Part 1 - get names in first then last format, incl. determine if names have a title and/or middle name. Part 2- for a list of example regular expressions, describe what they are trying to match and give an example match.

Data 606 Lab 2 - Probability

Histogram from a relative frequency distribution of incomes.

Data 606 Lab 1 - Introduction to Data (using CDC data)

Here I will use the MovieTweetings database from Github user sidooms. I then extract from here ratings from 10 recent popular movies, and create an SQL database from this. I then check this database for correctness using R, and then run some basic summary text and plots on this data to see how people rate these movies.

Data 606 Homework 1 - Introduction to Data

Data 606 Lab 0 intro to R/Rstudio using birth data from Arbutnot/United States as examples.

Describes how to transform the mushroom records from The Audubon Society Field Guide to North American Mushrooms into a more easily understood format.

Using a simple toy example, I demonstrate how to use Plotly to add an interactive tooltip showing the gene and sample name to a gene expression heat map created with ggplot2.

Used leaflet R library to show lunch spots around New York Genome Center on a map.

Fuel efficiency vs. transmission for Coursera regression course

This document uses the NOAA (National Oceanic and Atomospheric Administration) Storm Database to summarize the weather events that have had the greatest impact on both human health (fatalities and injuries) and economic activity (crop and property damage) in the United States.