Map google drive as network drive

This post explains how to add your google drive as a network drive:

  1. Download Drive for Desktop directly or at the Google site.
  2. Install it on your PC
  3. Google drive will be automatically map as the G: drive.

Linear Regression in Julia 1.0

Julia presents various ways to carry out linear regressions. In this previous post, I explained how to run linear regression in Julia using the function linreg(). Unfortunately, linreg() is deprecated and no longer exists in Julia v1.0.

In this post I will present how to use the native function of Julia to run OLS on the following model

y = \alpha + \beta_{1} x_{1}

Continue reading Linear Regression in Julia 1.0

What is the difference between using the t-distribution and the Normal distribution when constructing confidence intervals?

This blog post explains the difference between confidence intervals that use the t-distribution and confidence intervals that use the Normal distribution. Thereby, the post will not focus on the theoretical/mathematical differences of the two distributions, but rather compare the two types of confidence intervals using simulation studies. Furthermore, in case you are interested in replicating the presented results or simply play around with it yourself, I provide the R code to conduct the simulation exercises and to replicate the figures.

Continue reading What is the difference between using the t-distribution and the Normal distribution when constructing confidence intervals?

Confidence Intervals in R

In this post, I will show how one can easily construct confidence intervals in R. Assume you have a vector of numbers and you want to construct a confidence interval around the mean of this vector. The subsequent R code shows one easy way to calculate the confidence interval around the mean of this vector. The following code loads a function that allows you to pass on the vector and returns the confidence intervals. Per default the function returns the 95% confidence interval. However, the parameter ‘conf_level’ allows you to specify the interval you want.

Continue reading Confidence Intervals in R

WordAds Review 2018

One year ago, my blog reached the minimum traffic requirement of WordAds and the advertising platform added my blog to their program. Starting October 2017, I was able to display ads on my blog and earn part of the generated income. At the beginning, I was very excited. However, after few enthusiastic months, I soon realized that I will not be able to earn lots of money using WordAds. Sure, displaying adds earns some money, but compared to my regular salary, it is negligible.

Continue reading WordAds Review 2018

“In God we trust; all others must bring data.” W. Edwards Deming