When R software and RStudio program have been installed on your computer, R working session can be simply started by…
list is a type of data structure in R programming language. Unlike other data structures, especially matrix and vector, in…
Violin plot is quite similar as boxplot, in the sense that it shows the range of the data. And at…
When we perform data analysis using Python, it is often useful to pass a list in calling the function as…
A Student t-distributed random variable is modeling the ratio between a standard Normal random variate and square root of a…
Kernel density function is a nonparametric method to find the drawing density curve of random samples, and it is often…
A function in Python is a group of code statements wrapped together to perform specific tasks. After a function is…
Poisson distribution is a discrete distribution. It is frequently used to model the counts of event occurrence during a specified…
In hypothesis testing, the possibility of the other side than the conclusion usually exists, and the analysis commits so-called Type…
In hypothesis testing, the analyst has chance to commit both Type I and Type II errors. The Type I error…