R, import column names - r

Question

I have a csv file (myNames) with column names. It is 1 x 66. I want to use those names to rename the 66 columns I have in another dataframe. I am trying to use colnames(df)[]<-(myNames) but I get the wrong result. I have tried to do this using as.vector, as.array, as.list, without success.
Is there a more direct way to read a csv file into an array?
or
How can I get an array from my dataframe that I can use in colnames()?
Here's myNames:
v1 v2 v3 v4 v5 v6 v7
Tom Dick Harry John Paul George Ringo
I want to make Tom, Dick, Harry my new column names in mydata.

Answer 1

Try this:
library(tidyverse)
# Reproducible example
df <- ("Tom Dick Harry John Paul George Ringo")
df <- read.table(text = df)
# Change column names
names(df) <- as.matrix(df[1, ])
# Remove row 1
df <- df[-1, ]
# Convert to a tibble
df %>%
as_tibble() %>%
mutate_all(parse_guess) %>%
glimpse()
The code above returns:
Observations: 0
Variables: 7
$ Tom <chr>
$ Dick <chr>
$ Harry <chr>
$ John <chr>
$ Paul <chr>
$ George <chr>
$ Ringo <chr>
You could turn this into a function:
rn_to_cn <- function(dataframe){
x <- length(colnames(dataframe))
y <- length(unique(matrix(dataframe)))
if(x > y){
stop("Can't have duplicate column names.")
} else {
message("It worked!")
}
names(dataframe) <- as.matrix(dataframe[1, ])
dataframe <- dataframe[-1, ]
dataframe %>%
as_tibble() %>%
mutate_all(parse_guess)
}
And then do this:
rn_to_cn(df)
# A tibble: 0 x 7
# ... with 7 variables: Tom <chr>, Dick <chr>, Harry <chr>, John <chr>,
# Paul <chr>, George <chr>, Ringo <chr>