added option to format mean value and also adding vignette file to test the function. testing-format-statistics.Rmd file can be deleted after test

Author: jeetendersinghc

vignettes/testing-format-statistics.Rmd

@@ -0,0 +1,38 @@
+---
+title: "Untitled"
+author: "Jeetender Singh Chauhan"
+date: "`r Sys.Date()`"
+output: html_document
+---
+
+```{r setup, include=FALSE}
+knitr::opts_chunk$set(echo = TRUE)
+```
+
+
+
+```{r , echo=FALSE}
+library(metalite)
+library(boxly)
+
+# Step 1: Source your modified prepare_boxly.R file
+# (Update the path to where your modified file is saved)
+source("~/boxly_format_mean_value/R/prepare_boxly.R")
+
+# Step 2: Create metadata
+meta <- meta_boxly(
+  boxly_adsl,
+  boxly_adlb,
+  population_term = "apat",
+  observation_term = "wk12"
+)
+
+# Step 3: Prepare data with 2 decimal places for mean
+outdata <- prepare_boxly(meta, mean_decimal = 5)
+
+# Step 4: Generate the interactive box plot
+boxly(outdata)
+
+```
+
+Note that the `echo = FALSE` parameter was added to the code chunk to prevent printing of the R code that generated the plot.