R Name a list of dataframes in a list with a common word-CodePudding

I have list of dataframes that I want to rename such that the word Existing appears in the name of each of the dataframe.

How can I do this without having to manually add the new name of each dataframe (my actual list has 10 dataframes)?

Sample Data list:

df_list= list(a=1:5, b=2:10, c=-5:5)

Desired output:

df_list = list(Existing, Existing_1, Existing_3) # Something similar

Code:

library(tidyverse)
library(dplyr)

# Rename dfs in the list
names(df_list) = "Existing" #...stuck

CodePudding user response：

names(df_list) <- paste0('Existing_', seq_along(df_list))
df_list
$Existing_1
[1] 1 2 3 4 5

$Existing_2
[1]  2  3  4  5  6  7  8  9 10

$Existing_3
 [1] -5 -4 -3 -2 -1  0  1  2  3  4  5

CodePudding user response：

1) Use c(...) like this:

c(Existing = df_list)

giving:

$Existing.a
[1] 1 2 3 4 5

$Existing.b
[1]  2  3  4  5  6  7  8  9 10

$Existing.c
 [1] -5 -4 -3 -2 -1  0  1  2  3  4  5

2) If we remove the names first then we get this:

c(Existing_ = setNames(df_list, NULL))

giving:

$Existing_1
[1] 1 2 3 4 5

$Existing_2
[1]  2  3  4  5  6  7  8  9 10

$Existing_3
 [1] -5 -4 -3 -2 -1  0  1  2  3  4  5