Data Wrangling Data Explanatory Forecasting

Predict the next words typed

a quick execution time comparison between loop and vectorization method

Exploratory analysis - perform a thorough exploratory analysis of the data, understanding the distribution of words and relationship between the words in the corpora. Understand frequencies of words and word pairs - build figures and tables to understand variation in the frequencies of words and word pairs in the data.

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Regression model, t-test, anova, model selection

Logistic Regression & Regression Splines

Model Linear Quizz 2 (Johns Hopkins University) Data Science SPecialization

Least squares and linear regression

Poisson, Power, Confidence Interval, Hypothesis test, Paired Test

Week 2 Assignement statistical-inference Provided by COursera (johns hopkins university) Binomial, Normal and Poisson distribution

Storms and other severe weather events can cause both public health and economic problems for communities and municipalities. Many severe events can result in fatalities, injuries, and property damage, and preventing such outcomes to the extent possible is a key concern. This project involves exploring the U.S. National Oceanic and Atmospheric Administration's (NOAA) storm database. This database tracks characteristics of major storms and weather events in the United States, including when and where they occur, as well as estimates of any fatalities, injuries, and property damage. https://d396qusza40orc.cloudfront.net/repdata%2Fdata%2FStormData.csv.bz2