What's in a rating? A Crunchy EDA.

Introduction and aim Correlation Regression Diagnostics. Conclusions Zachs Challenge ;-) Anova & checking Assumptions Assumption of normality Assumption of homogeneity of variance Test performance Acknowledgements References [Read More]
Tags: tidyverse, caret, ANOVA, Shapiro-Wilk, Homoskedasticity

Comparing Models with the Wisconsin Breast Cancer dataset

Import the data Tidy the data Understand the data Transform the data Pre-process the data Using PCA Using LDA Model the data Logistic regression Random Forest KNN Support Vector Machine Neural Network with LDA Models evaluation References [Read More]
Tags: tidyverse, caret, PCA, Logistic Regression, SVM, Random Forest, KNN

Rollin', rollin', rollin' on the river

Caluclate Rate of Change, aka ROC Tidyways …. The TTR way Conclusion Calculate Simple Moving Average TTR package the Zoo package RcppRoll package RollingWindows The Roll package Conclusion [Read More]
Tags: tidyverse, xts, zoo, RccpRoll, RollingWindows, ROC, benchmark

Using the purrr package to write children book

Some time back in the #rstat twitter-verse, there was a silly challenge thrown out there to see who could use the map functions from the purrr package to write one of the famous children book. It did took me quite a while to have it right to the punction and... [Read More]
Tags: purrr, entertainment