Likert Plot legend names for response

Question

I have developed a script to plot a Likert scale. The Script works properly and the plot is correct. I want to change the response label which would be, "Strongly Disagree","Disagree","Slightly Disagree","Slightly Agree","Agree", "Strongly Agree" in an orderly list. I have tried different solutions but none seems to work

Q1 <- read_excel("C:\\Users\\users\\Desktop\\Survey Responses\\Business Survey\\BusinessLikert.xlsx")

df <- data.frame(respondent = c(Q1$Respondent), Score = c(Q1$Q1))

df1 <- likert(items=df[,2, drop = FALSE], nlevels = 6)

summary(df1)

likert.bar.plot(df1)

likert.density.plot(df1)

Answer 1

As stated in the documentation of the likert function (?likert::likert), the columns of the data.frame in items should be factors. The level names then specify the response labels used in the derived likert plots. Since your data is not reproducible, consider the following artificial example:

library(likert)

set.seed(1)
df <- data.frame(Score = factor(sample(1:6, size = 100, replace = TRUE), 
                 labels = c("Strongly Disagree", "Disagree", "Slightly Disagree", "Slightly Agree", "Agree", "Strongly Agree")))
(df_likert <- likert(items = df))
#>    Item Strongly Disagree Disagree Slightly Disagree Slightly Agree Agree
#> 1 Score                19       18                12             15    15
#>   Strongly Agree
#> 1             21

likert.bar.plot(df_likert)

---

Edit: for multiple (e.g. numeric) columns representing individual response groups in the data.frame, recode the columns as factors first and then apply the likert function to the recoded data.frame:

## initial data.frame of integers
df <- data.frame(
  sapply(c("Q1", "Q2", "Q3"), function(x) sample(1:6, size = 100, replace = TRUE))
)

## recode each column as a factor
df_factor <- as.data.frame(
  lapply(df, function(x) factor(x, 
      labels = c("Strongly Disagree", "Disagree", "Slightly Disagree", 
                 "Slightly Agree", "Agree", "Strongly Agree"))
  )
)

(df_likert <- likert(items = df_factor))
#>   Item Strongly Disagree Disagree Slightly Disagree Slightly Agree Agree
#> 1   Q1                19       18                12             15    15
#> 2   Q2                19       16                19             18    15
#> 3   Q3                18       15                 8             21    20
#>   Strongly Agree
#> 1             21
#> 2             13
#> 3             18

likert.bar.plot(df_likert)