Update DataGuide_AAPF_RGB.md

DataGuide_AAPF_RGB.md

@@ -1,11 +1,20 @@
 # DataGuide-AAPF-RGB
 
-This document details the file system organization and navigation procedures for accessing both unprocessed RGB image data and the derived phenotypic measurements of the plants captured by the [Ag Alumni Seed Phenotyping Facility (AAPF)](https://ag.purdue.edu/aapf/).
+This document details the file system organization and navigation procedures for accessing both unprocessed RGB image data and the derived phenotypic measurements of the plants captured by the [Ag Alumni Seed Phenotyping Facility (AAPF)](https://ag.purdue.edu/aapf/). The data can be categorized into two main parts:
 
 - `Raw Measurement Data`: This folder structure houses individual spreadsheets (.csv) and corresponding images (.png) for each measured phenotype.
 - `Masterfile (.xlsx)`: This file contains a compilation of spreadsheets and a guide document explaining the data contents.
 
 
+### Table of Contents
+- File System Structure
+- Filename Conventions
+- Image Products (example, resized)
+How to Read Image Files Containing Morphological Measurement Info (image with MES in the filename)
+
+
+___
+
 ### File System Structure
 
     Example (does not contain all associated files):
@@ -90,9 +99,15 @@ These image files visually represent morphological measurements on the vegetatio
 - `Cyan (point)`: Center of mass coordinate
 
 
-### How to Read Information in spreadsheet files (.xlsx for masterfile or csv file for individual measurements)
+### How to Read Information in Masterfile (.xlsx for masterfile or csv for individual measurements)
+
+Phenotypic measurements derived from RGB images and auxiliary data are stored in spreadsheets. The master data file (*.xlsx) is organized into three sections:
+
+- `Top`: This section contains phenotypic measurements acquired from a top-down view of the plants.
+- `Side_average`: This section provides the average phenotypic measurements calculated from data captured at various side-view angles (0°, 30°, 60°, ..., 330°).
+- `Side_all`: This section contains detailed phenotypic measurements for each individual side-view angle (0°, 30°, 60°, ..., 330°).
 
-The spreadsheets contains various phenotypic measurements derived from the RGB images and auxiliary measurement info. Here's a breakdown of the column headers:
+Both the master data file (.xlsx) and individual measurement files (.csv) share a common data headers. A detailed explanation of the column headers follows:
 
 
 | Column Head                            | Description                                                                                     |