Month: November 2020

This week I work with Time Series objects in R and make use of Holt-Winters Forecasting and exponential smoothing to find the trend in seemingly random data. For this I created an R script which you can find on my GitHub here, or with the link at the bottom of…

In this post I go over data analysis using chi-tests and data visualization techniques. For the R code I use, you can find it on my GitHub here, or follow the link at the bottom. The following table is real data collected from a hotel quest satisfaction study. The hotels…

This week focused on Analysis of Variance (ANOVA) testing, which is a test that can be used for data with 2 or more groups and can reduce Type I errors. To perform the analysis in this post I wrote an R script to speed up the process. The code is…