Data Import

library(tidyverse)
library(tidyverse)
library(here)

# --- SMART DATA LOADER ---
# Logic: If your data exists, we use it. If not, we show a sample.

my_file <- "data.csv"
file_path <- here("data", my_file)

if (file.exists(file_path)) {
  # REAL DATA MODE
  raw_data <- read_csv(file_path) 
  names(raw_data) <- tolower(gsub("[^[:alnum:]]", "_", names(raw_data))) # Basic clean_names
  print(paste("SUCCESS: Loaded real data from", my_file))
  
} else {
  # SAMPLE MODE (Demo)
  # This section runs if you haven't added your file yet, so you can see the outputs.
  print(paste("NOTE: '", my_file, "' not found. Generating sample data for demonstration."))
  
  set.seed(42)
  raw_data <- data.frame(
    id = paste0("ID_", 1:50),
    age = round(rnorm(50, 21, 2)),
    gender = sample(c("Male", "Female", "Non-binary"), 50, replace = T),
    anxiety_score = sample(1:7, 50, replace = T)
  )
}

[1] "NOTE: ' data.csv ' not found. Generating sample data for demonstration."

# Preview
head(raw_data)

    id age     gender anxiety_score
1 ID_1  24     Female             6
2 ID_2  20       Male             7
3 ID_3  22     Female             3
4 ID_4  22       Male             6
5 ID_5  22     Female             5
6 ID_6  21 Non-binary             1