Rstats

Introduction In my last linkedin Post I mentioned about how : Taking a sample from two groups from a population and seeing if there’s a significant or substantial difference between them is a standard task in statistics.

Introduction Goal for Today Introduce you to R and Rstudio. What Are R and Rstudio? What Is R? R is an open source programming language with origins in C and FORTRAN.

Every time some operations have to be repeated, a loop may come in handy. Loops are good for: Doing something for every element of an object; Doing something until the processed data runs out; Doing something for every file in a folder; Doing something that can fail, until it succeeds; Iterating a calculation until it reaches convergence.

What is R? R is a programming language that was originally developed by and for statisticians, but in recent years its capabilities and the environments in which it is used have expanded greatly, with extensive use nowadays in academia and the public and private sectors.

longitudinal data analysis If repeated measurements are over time, such data are called repeated measures, time-course, or longitudinal data Studies involving such data are often called longitudinal studies (usually a cohort study, although RCTs can also be longitudinal).