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Top Questions People Ask About Pandas, NumPy, Matplotlib & Scikit-learn — Answered!

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 Whether you're a beginner or brushing up on your skills, these are the real-world questions Python learners ask most about key libraries in data science. Let’s dive in! 🐍 🐼 Pandas: Data Manipulation Made Easy 1. How do I handle missing data in a DataFrame? df.fillna( 0 ) # Replace NaNs with 0 df.dropna() # Remove rows with NaNs df.isna(). sum () # Count missing values per column 2. How can I merge or join two DataFrames? pd.merge(df1, df2, on= 'id' , how= 'inner' ) # inner, left, right, outer 3. What is the difference between loc[] and iloc[] ? loc[] uses labels (e.g., column names) iloc[] uses integer positions df.loc[ 0 , 'name' ] # label-based df.iloc[ 0 , 1 ] # index-based 4. How do I group data and perform aggregation? df.groupby( 'category' )[ 'sales' ]. sum () 5. How can I convert a column to datetime format? df[ 'date' ] = pd.to_datetime(df[ 'date' ]) ...

Aws course contents ideas to learn

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What you are going to learn in AWS course is matter. So before you take the course just look at the course contents on aws.  AWS Course Contents for beginners What you will get after taking Aws course Recognize terminology and concepts as they relate to the AWS platform Navigate the AWS Management Console Understand the security measures AWS provides Differentiate AWS Storage options and create an Amazon Simple Storage Service (S3) bucket Recognize AWS Compute and Networking options and use Amazon Elastic Compute Cloud (EC2) and Amazon Elastic Block Storage (EBS) Describe Managed Services and Database options Use Amazon Relational Database Service (RDS) to launch an application Identify Deployment and Management options Intended Audience Individuals responsible for articulating the business benefits of AWS services Any individual who is new to AWS SysOps Administrators and Developers who are interested in using AWS services This course includes activities that w...