Subset data frame using row names

r, r-rownames, subset

Solution

You need to reference the rownames of your data.frame:

dfsub[rownames(dfsub) == 271,] #where dfsub is your subsetted data.frame

EDIT:

as @koekenbakker commented, there is a shorthand to reference the rownames by using `''`. So this would be:

dfsub['271',] #where dfsub is your subsetted data.frame and 271 the rowname

Problem

I have a data frame like this: ``` x1 x2 x3 271 3 5 2 553 2 4 1 563 2 5 3 ``` When I try to select a row based on the row name, e.g. 271, it errors: ``` df[271, ] # Error in xj[i, , drop = FALSE] : subscript out of bounds ``` How can I select these rows based on the row names (e.g. 271, 553, 563)?

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