Search for a command to run...
Series
R is an interpreted language. Uses of R Statistical computations Predictive analysis Data visualization by use of libraries e.g. ggplot Correlation analysis RULES Case Sensitivity: R is case sensitive which means functions, variables or object...
Process of loading and reading data into R from various resources. 5 types of data to import: Flat files - Flat files are text-based files where data is organized in rows and columns. Data from Excel Databases Web Statistical software read.csv...
Sequence of (meta) characters. used for pattern matching or string matching Uses: Data extraction Cleaning Data analysis Data validation Text mining parsing [abc]a,b,c [^abc]any character except a, b, c [a- z]a to z [A - Z]A to Z [a...
Missing data can arise for a multitude of reasons, from data collection errors to the inherent nature of some observations. represented with NA Testing for missing values is.na() This function is used to check if a value is missing (i.e., NA) in a ve...
Data manipulation involves the process of transforming and restructuring data to prepare it for analysis or to extract insights from it. There are 8 fundamental data manipulation verbs. Most are in the dplyr package. filter() picks rows based on the...