Filter to Keep Rows matching 1 of 4 conditions

[Erin_Ball]

Hi all,

Beginner here. I have a large data set of players with their associated teams. I want to filter the data and only keep players from 4 teams. What is the easiest way to do this?

[williaml]

Hi, either the dplyr way or the base R way.

Subset rows using column values — filter • dplyr (tidyverse.org)

Subsetting and Filtering a Data Frame in R (base R) – Mitch Craver

[Erin_Ball]

I'm trying the dplyr method and it keeps returning "Error in UseMethod("filter") :
no applicable method for 'filter' applied to an object of class "character"". I can't figure out what that means.

[williaml]

Can you provide a sample of your dataset and your code? It will make it easier to work out how to do what you want to do.

FAQ: How to do a minimal reproducible example ( reprex ) for beginners

A minimal reproducible example consists of the following items: A minimal dataset, necessary to reproduce the issue The minimal runnable code necessary to reproduce the issue, which can be run on the given dataset, and including the necessary information on the used packages. Let's quickly go over each one of these with examples: Minimal Dataset (Sample Data) You need to provide a data frame that is small enough to be (reasonably) pasted on a post, but big enough to reproduce your issue. Let's say, as an example, that you are working with the iris data frame head(iris) #> Sepal.Length Sepal.Width Petal.Length Petal.Width Species #> 1 5.1 3.5 1.4 0.…

[Flm]

library(tidyverse)

df <- tibble(team = c("Mercedes", "Alfa Romeo", "AlphaTauri", "Alpine", "Aston Martin", "Ferrari", "Haas", "McLaren", "Williams", "Red Bull"),
       result = sample(1:30, 10))

using filter()

# simplest way
df %>% 
  filter(team %in% c("Ferrari", "Alfa Romeo", "AlphaTauri"))

# or 
df %>% 
  filter(team == "Ferrari" | team == "Alfa Romeo" | team == "AlphaTauri")