For Data Science Learners
R for Data Science
Calculating Z-Scores in R: A Step-by-Step Guide, Z-scores measure how many standard deviations an individual data value is from the mean. Calculating Z-Scores in R: A Step-by-Step Guide In this article, we will explore how to calculate Z-scores in R using various methods. We will cover calculating Z-scores for a single vector, a single column…
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Descriptive Statistics in R: A Step-by-Step Guide Descriptive statistics are a crucial part of data analysis, as they provide a snapshot of the central tendency and variability of a dataset. In R, there are two primary functions that can be used to calculate descriptive statistics: summary() and sapply(). In this article, we will explore how…
Multiple Plots to PDF in R: A Step-by-Step Guide. When working with data analysis and visualization, it’s often necessary to save multiple plots to a single PDF file. This can be a convenient way to organize and share results, especially when working with multiple datasets or multiple models. In R, saving multiple plots to a…
Run a specific code block in R, We will cover the basic syntax and definitions of the switch function, as well as two examples of how to apply it. Definition and Basic R Syntax The switch function in R runs a specific code block and returns its result. The basic syntax is: switch(select_block, “code_block_1”, “code_block_2”,…
Replace first match in R, This article explains how to replace patterns in characters in R using the sub() and gsub() functions. We will cover the basic syntax and definitions of the two functions, as well as two examples of how to apply them. Basic R Syntax:Replace first match in R The basic syntax for…
Display the structure in R, we will demonstrate how to use the str() function in R to print the structure of a data object. We will cover three examples: displaying the structure of a data frame, a list, and a vector. Example 1: Displaying the Structure of a Data Frame To begin, we need to…
Convert characters to time in R, we will explore how to convert characters to time objects and vice versa using the strptime and strftime functions in R. These functions are part of the base package and provide a convenient way to work with dates and times. Basic R Syntax: Convert characters to time in R…
Identify positions in R, we will explore how to use the str_subset and str_which functions in R to filter and find patterns in character strings. These functions are part of the stringr package, which provides a variety of functions for working with strings. Identify positions in R To demonstrate the usage of str_subset and str_which,…
Wrap a character string in R, we will explore how to use the str_wrap function in R to wrap a character string into nicely formatted paragraphs. This function is part of the stringr package, which provides a variety of functions for working with strings. Wrap a character string in R To demonstrate the usage of…
Duplicate and concatenate in R, we will explore how to use the str_dup function in R to duplicate and concatenate strings within a character vector. The str_dup function is part of the stringr package, which provides a variety of functions for working with strings. Example Data To demonstrate the usage of str_dup, we will create…