Subscription out of bounds

[alaya_lee]

I keep getting an error that says subscription of bounds

statex77_stats <- summary(state.x77[["Income"]])
statex77_stats

[technocrat]

@alaya_lee

summary(state.x77[["Income"]])

The problem is that state.x77 isn't a data frame.

str(state.x77)
#>  num [1:50, 1:8] 3615 365 2212 2110 21198 ...
#>  - attr(*, "dimnames")=List of 2
#>   ..$ : chr [1:50] "Alabama" "Alaska" "Arizona" "Arkansas" ...
#>   ..$ : chr [1:8] "Population" "Income" "Illiteracy" "Life Exp" ...
s <- as.data.frame(state.x77)
# equivalent
summary(s[["Income"]])
#>    Min. 1st Qu.  Median    Mean 3rd Qu.    Max. 
#>    3098    3993    4519    4436    4814    6315
summary(s$Income)
#>    Min. 1st Qu.  Median    Mean 3rd Qu.    Max. 
#>    3098    3993    4519    4436    4814    6315
summary(s["Income"])
#>      Income    
#>  Min.   :3098  
#>  1st Qu.:3993  
#>  Median :4519  
#>  Mean   :4436  
#>  3rd Qu.:4814  
#>  Max.   :6315
s[2] |> summary()
#>      Income    
#>  Min.   :3098  
#>  1st Qu.:3993  
#>  Median :4519  
#>  Mean   :4436  
#>  3rd Qu.:4814  
#>  Max.   :6315

^{Created on 2023-04-07 with reprex v2.0.2}