emgUtils.py

import pandas as pd
import numpy as np

def load_csv(file_path):
    try:
        df = pd.read_csv(file_path, header=1)
        print("CSV data successfully loaded")
        print(df.head())  # Print the first few rows
        return df
    except FileNotFoundError:
        print(f"Error: File not found at '{file_path}'")
    except pd.errors.EmptyDataError:
        print("Error: File is empty")
    except pd.errors.ParserError:
        print("Error: Failed to parse CSV file")

def preproc(df, rmsWind):
    abs_df = df.abs()
    rms_df = abs_df.rolling(window=int(rmsWind)).apply(lambda x: np.sqrt(np.mean(x**2)), raw=True)

    return rms_df

def save_csv(df, save_path):
    try:
        df.to_csv(save_path, index=False)
        print(f"Data successfully saved to '{save_path}'")
    except Exception as e:
        print(f"Error: Could not save file to '{save_path}'. {e}")