Extract Single Element from Data Frame in R | Access Specific Position | Row Index & Variable Name

R code of this video:

x2 = letters[1:5])

data[3, "x2"] # Extract element

data[3, 2] # Extract element

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[janilinbappi]

Great video, and amazing explaination for newcomers like me. But, whenever I try the first value, as string instead of integer, then the output show NA.

> x <- c("a", "b", "c")
> y <- c(1, 2, 3)
> xy <- data.frame(x, y)
> xy["c", 2]
[1] NA

Would be great if you could help.

[CG-vdnu]

What if you only know x2 and you want to return the value '3' (the other column value for that row)