Change Row name of a particular Column in Dataframe

Question

How to change Row name of a particular column in R dataframe:

<df

Name    Value
A       10
B       20
C       30

I want output to be:

Name    Value
AAA     10
BBB     20
CCC     30

I have tried data.table library but it couldn't work.

library(data.table)
my_df <- setattr(df$Name, "row.names", c("AAA", "BBB", "CCC"))

Tried this but it's not changing the Values under "Name" head, it created new row name. ~ Name Value AAA A 10 BBB B 20 CCC C 30~ — user9211845
– user9211845, Commented Jan 18, 2018 at 18:11

LMunyan · Accepted Answer · 2018-01-18 18:51:07Z

3

Looks like the name column is it's own column. See the code below

sample <- data.frame(Name = c("A", "B", "C"), Value = c(10,20,30))

Looks like this:

  > sample
 Name Value
1    A    10
2    B    20
3    C    30

Now Try:

sample$Name <- c("AAA", "BBB", "CCC")

Yields:

> sample
  Name Value
1  AAA    10
2  BBB    20
3  CCC    30

answered Jan 18, 2018 at 18:51

LMunyan

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