How to use stringr package In R Language

Method 2: Using data.table package

The stringr package in R language is used mainly for character manipulations, locale-sensitive operations, altering whitespace, and Pattern-matching. Here we will use its pattern matching functionality to filter data according to partial string match.

Syntax:

df[str_detect(df$column-name, “Pattern”), ]

Parameters:

df: determines the dataframe that is being used.

column-name: determines the column in which strings have to be filtered.

Pattern: determines the string pattern that has to be matched.

Example: This example explains how to extract rows with a partial match using the stringr package.

R

# Load library stringr
library("stringr") 
 
# sample dataframe
data<- data.frame(names=c('Hello','this','Hell','Geeks',
                          'Geek', 'w3wiki'))                  
 
# Filter data with str_detect for strings 
# containing "Gee"
result1<-data[str_detect(data$name, "Gee"), ]
 
# print result data
result1
 
# Filter data with str_detect for strings
# containing "Hel"
result2<-data[str_detect(data$name, "Hel"), ]
 
# print result data
result2

Output:

[1] “Geeks” “Geek” “w3wiki”

[1] “Hello” “Hell”

Select Rows with Partial String Match in R DataFrame

In this article, we’ll discuss how to select rows with a partial string match in the R programming language.

Tags:

#R DataFrame-Programs #R-DataFrame #R Language #R Programs

Method 2: Using data.table package

How to use stringr package In R Language

R

Select Rows with Partial String Match in R DataFrame

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