Manuel Amunategui's repositories
BetterCrossValidation
Companion code for YouTube video: https://www.youtube.com/watch?v=Og7CGAfSr_Y&feature=youtu.be
Read-and-Process-Files-Larger-Than-RAM
Using the function read.table() to break file into chunks to loop and process them. This allows processing files of any size beyond what the machine's RAM can handle. Companion code for youtube: https://www.youtube.com/watch?v=Z5rMrI1e4kM
SimpleEnsembleBlending
Ensemble/Blender example in R using Caret (companion code for YouTube video: https://www.youtube.com/watch?v=k7sTiTWWCXM)
SMOTE-Oversample-Rare-Events
Youtube companion (https://www.youtube.com/watch?v=1Mt7EuVJf1A&feature=youtu.be) - Brief introduction to the SMOTE R package to super-sample/ over-sample imbalanced data sets. SMOTE will use bootstrapping and k nearest neighbor to synthetically create additional observations. SMOTE white paper: https://www.jair.org/media/953/live-953-2037-jair.pdf
pca-dimension-reduction
Reducing High Dimensional Data with Principle Component Analysis (PCA)
FSCARET-Feature-Selection-On-Steroids
Code for Youtube video: https://www.youtube.com/watch?v=dTRDZBltCTg&list=UUq4pm1i_VZqxKVVOz5qRBIA&index=1
MultinomWalkThru
Companion code for YouTube video: https://www.youtube.com/watch?v=zTlbMHw9CeY&feature=youtu.be
Walkthrough-of-the-dummyVars-Function
Shows how to transform categorical and textual data into dummy variables using Caret's dummyVar function. Code for YouTube presention: https://www.youtube.com/watch?v=7rgzCjrIA-o
caretEnsemble
Ensemble
CSV2Vowpal
My take on the fastest possible translator for CSV to VW (vowpal wabbit) files using R. This is a work in progress
excel-geocoding-tool
Easy to use Geocoding tool for Excel.
ExData_Plotting1
Plotting Assignment 1 for Exploratory Data Analysis
GettingAndCleaningData
Getting and Cleaning Data - John Hopkins
greekmedia
Kaggle Competion - Multi-label prediction
PracticalMachineLearningProject
Coursera Practical Machine Learning Rep.
ProgrammingAssignment2
Repository for Programming Assignment 2 for R Programming on Coursera
RepData_PeerAssessment1
Peer Assessment 1 for Reproducible Research
Sparse-Matrices-And-GLMNET-Demo
Walk-through of sparse matrices in R and basic use of them in GLMNET. Companion code for Youtube talk: https://www.youtube.com/watch?v=Ysh2gs8VKvQ
vowpal_wabbit
John Langford's original release of Vowpal Wabbit -- a fast online learning algorithm
ZipToZipInMiles
(R) Calculates distance in miles between two US zip codes using the R language