Python is among the most popular programming language for data science nowadays, and getting started with Python is quite easy.…
Categorical variables, including nominal and ordinal variables in R programming language are called factor variables. For example, gender(male/female) is nominal,…
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…