
The US Holiday Season started with high anxiety for the Retail Industry as online retailers registered high volume of sales on Black Friday 2017. Pre-holiday season reports signaled not much change in […]
The US Holiday Season started with high anxiety for the Retail Industry as online retailers registered high volume of sales on Black Friday 2017. Pre-holiday season reports signaled not much change in […]
In a previous post, I covered how heteroscedasticity “happened” to me. The anecdote I mentioned mostly pertains to time series data. Given the purpose of the research that I was developing back […]
Sometimes it is good to learn about issues such as heteroscedasticity by empirically identifying them. Here is how I detected heteroscedasticity was present in time series analysis. I started working on a […]