How to select a set of the whole tables by only selecting the name

[Janicehau]

Here is my example of the dataset

df <- data.frame(team=rep(c('A', 'B', 'C', 'D'), each=4),
pos=rep(c('G', 'F'), times=8),
points=round(runif(16, 4, 20),0))

How do I only select team A's data(with its pos and points) only using the name and without using selecting numeric values?

Thank you so much!

[DavoWW]

Hi @Janicehau,
This is a very common operation in R, and here is one way to achieve it:

suppressPackageStartupMessages(library(tidyverse))

df <- data.frame(team=rep(c('A', 'B', 'C', 'D'), each=4),
                 pos=rep(c('G', 'F'), times=8),
                 points=round(runif(16, 4, 20),0))
df
#>    team pos points
#> 1     A   G     13
#> 2     A   F     12
#> 3     A   G     15
#> 4     A   F      7
#> 5     B   G     18
#> 6     B   F     15
#> 7     B   G      7
#> 8     B   F      6
#> 9     C   G     17
#> 10    C   F      8
#> 11    C   G      6
#> 12    C   F      4
#> 13    D   G      5
#> 14    D   F     19
#> 15    D   G      8
#> 16    D   F      9

df %>% 
  filter(team == "A") -> teamA_only.df

teamA_only.df
#>   team pos points
#> 1    A   G     13
#> 2    A   F     12
#> 3    A   G     15
#> 4    A   F      7

^{Created on 2023-01-20 with reprex v2.0.2}

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