Menu
Var1 is a list:
var1 <- list(c("Parts of a Day", "Time in Astronomy", "Star"), c("Tree Tall", "Pine Tree")) How to convert all the characters to lowercase? The desired answer is the following list:
var1 <- list(c("parts of a day", "time in astronomy", "star"), c("tree tall", "pine tree")) I used
as.list(tolower(var1)) But it gives the following answer with unwanted \
[[1]] [1] "c(\"parts of a day\", \"time in astronomy\", \"star\")" [[2]] [1] "c(\"tree tall\", \"pine tree\")" Thanks.
731
tolower() method in R programming is used to convert the uppercase letters of string to lowercase string. Return: Returns the lowercase string.
In R, the easiest way to convert column names to lowercase is by using the functions names() and tolower() . First, the names() function reads the column names of a data frame and returns them in a character vector. Next, the tolower() function transforms all characters of this vector to lowercase.
To convert a lowercase string to an uppercase string in R, use the toupper() method. The toupper() method changes the case of a string to the upper. The toupper() function takes a string as an argument and returns the uppercase version of a string.
toupper() method in R programming is used to convert the lowercase string to uppercase string. Return: Returns the uppercase string.
You should use lapply to lower case each character vector in your list
lapply(var1, tolower) # [[1]] # [1] "parts of a day" "time in astronomy" "star" # # [[2]] # [1] "tree tall" "pine tree" otherwise tolower does as.character() on your entire list which is not what you want.
107
Use gsub
gsub("/", "", var1) as.list(tolower(var1)) this will remove all your / out of your variable.
37
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With
