How to utilize Python in analyzing the big dataset?

92    Asked by ranjan_6399 in Python , Asked on Dec 11, 2023

I am leading a team of developers currently working on a project that includes implementing a data analysis tool. We decided to utilize Python to analyze the large dataset. How can I employ Python in managing, cleaning, and extracting meaningful insights from such a big data set? 

Answered by Delbert Rauch

To handle your scenario you can use Python to manage, clean, and extract meaningful insights from big datasets. Here are the uses of Python given below in extracting things from your datasets:-

Data loading and cleaning You can use pandas which is a library of Python to load the dataset into a data frame of pandas. It can help you in cleaning and removing duplicates. Here is the example given:-

Import pandas as pd

# Load the data into a Pandas DataFrame
Data = pd.read_csv(‘sales_data.CSV)
# Handling missing values
Data. drop(inplace=True)
# Removing duplicates

Data.drop_duplicates(inplace=True)racetandardizing formats (e.g., converting date columns to datetime foformat)

Data[‘date_column’] = pd.to_datetime(data[‘date_column’])
Exploratory Data analysis
You can use Pandas, marplot, and Seaborn to visualize the data. Here is the example given
Import matplotlib. pyplot as plt
# Visualizing sales trends over time
Plt. figure(figsize=(10, 6))
Plt. plot(data[‘date_column’], data[‘sales_column’])
Plt. label(‘Date’)
Plt. label(‘Sales’)
Plt. title(‘Sales Trends over Time)
Plt. show()
Future Engineering and Transformation
Using Python, you can create advanced new features to extract more meaningful insights from databases. Here is how you can
# Extracting month and year from the date column
Data[‘month’] = data[‘date_column’].dt.month
Data[‘year’] = data[‘date_column’].dt.year
# Feature scaling or normalization if needed
From sklearn.preprocessing import MinMaxScaler
Scaler = MinMaxScaler()
Data[[‘sales_column’]] = scaler.fit_transform(data[[‘sales_column’]])
Model building and prediction
You can also gain model building and prediction by using Python to gain insights into customer's behavior based on the data. Here is an example
From sklearn.model_selection import train_test_split
From sklearn.linear_model import LinearRegression
# Splitting the data into train and test sets
X = data[[‘month’, ‘year’]] # Features
Y = data[‘sales_column’] # Target variable
X_train, X_test, y_train, y_test = train_test_split(X, y, test_size=0.2, random_state=42)
# Training a linear regression model
Model = LinearRegression()
Model. fit(X_train, y_train)
# Making predictions
Predictions = model. predict(X_test)

Evaluation You can assess and evaluate the performance to derive insights to support decision-making by using Python

From sklearn.metrics import mean_squared_error, r2_score
# Evaluating the model
Mse = mean_squared_error(y_test, predictions)
R2 = r2_score(y_test, predictions)
Print(f”Mean Squared Error: {mse}”)
Print(f”R-squared: {r2}”)
# Extracting feature importance
Feature_importance = model.coef_
Print(f”Feature Importance: {feature_importance}”)

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