R Convert Factor to Character Class (3 Examples) | Change Vector & Data Frame Column | as.character
Автор: Statistics Globe
Загружено: 2020-12-28
Просмотров: 1497
How to convert factors to characters in the R programming language. More details: https://statisticsglobe.com/convert-f...
R code of this video:
x_fac ＜- factor(c("AA", "XXX", "Y", "HI", "XXX", "YAY")) # Create factor vector
x_fac # Print factor vector
class(x_fac) # Check class
x_char ＜- as.character(x_fac) # Apply as.character function
x_char # Print new vector
class(x_char) # Check class
data_fac ＜- data.frame(x1 = letters[1:5], # Create example data
x2 = 1:5,
x3 = "XXX")
data_fac # Print example data
sapply(data_fac, class) # Check class of all variables
data_char1 ＜- data_fac # Duplicate data
data_char1$x1 ＜- as.character(data_char1$x1) # Convert one column to character
sapply(data_char1, class) # Check class of all variables
data_char2 ＜- data_fac # Duplicate data
fac_cols ＜- sapply(data_char2, is.factor) # Identify all factor columns
data_char2[fac_cols] ＜- lapply(data_char2[fac_cols], as.character) # Convert all factors to characters
sapply(data_char2, class) # Check class of all variables
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