/R/R tibble select rows containing string

R tibble select rows containing string

dplyr::filter(df, !grepl("RTB",TrackingPixel))

Source: stackoverflow.com

Using like filter dplyr

library(rbenchmark)
library(tidyverse)

# The data. Data expo 09. ASA Statistics Computing and Graphics 
# http://stat-computing.org/dataexpo/2009/the-data.html
df <- read_csv("Downloads/2008.csv")
print(dim(df))
# [1] 7009728      29

benchmark(
  "str_detect" = {df %>% filter(str_detect(Dest, 'MCO|BWI'))},
  "grepl" = {df %>% filter(grepl('MCO|BWI', Dest))},
  replications = 10,
  columns = c("test", "replications", "elapsed", "relative", "user.self", "sys.self"))
# test replications elapsed relative user.self sys.self
# 2      grepl           10  16.480    1.513    16.195    0.248
# 1 str_detect           10  10.891    1.000     9.594    1.281

Source: stackoverflow.com

Similar codes

0 vote170 views1 answer
R ggplot hide one legend group from multiple legends
R
2 votes155 views1 answer
Drop columns by index r
R
4 votes269 views1 answer
How to do linear regression in r
R
0 vote161 views1 answer
How to remove all attributes from a variables in r
R
0 vote153 views5 answers
Layar names in R worldclim
R
0 vote156 views1 answer
Save large nested list to text R
R
0 vote180 views1 answer
Replace character with na r
R
1 vote158 views1 answer
R range with step
R
2 votes156 views2 answers
R split string column by delimiter
R
0 vote130 views1 answer
Plot two variables
R