fq {foodquotient}

Frequency Factor

Description

The Frequency Factor function converts values 1-9, representing different frequency factor responses from the hsffq, to average daily servings consumed for that individual.

Usage

fq(f)

Arguments

f

1-9, representing different frequency factor responses from the hsffq. These can be in a dataframe, vector, or just single values

Value

a dataframe, vector, or single value of the same dimension as the input, with each position holding the average daily servings consumed for each food (columns) for each individual(rows).

Examples

test <- c(1, 5, 7, 3, 9, 2, 4, 3, 6, 8)
fq(test)

rquestionnaire <- function(n, n_food_questions = 85) {
  mat <- matrix(
    sample(1:9, n_food_questions*n, replace = TRUE),
    nrow = n, ncol = n_food_questions
  )
  df <- data.frame( age = round(runif(n, 2, 11), digits = 1) )
  cbind(df, as.data.frame(mat))
}
df <- rquestionnaire(6)

fq(df)