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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' ]) ...
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Telecom Domain Knowledge Useful For a Data Analyst

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Telecom companies provide five kinds of services. Those are Voice, Data, Toll-free, internet, and wireless. The given Telecom domain knowledge helpful for data analysis projects. 5 Top Telecom Services. Voice Toll-free Data service Internet Wireless  Telecom Domain Knowledge Useful for IT developers, Data Analysts, and Software Testers   In addition to the above, the latest services are Internet and wireless. Domain knowledge is crucial to design and develop the code. 1. Voice service This is the standard phone service that you have been using since the first time you called your Grandma to thank her for a birthday present. You need voice service. 2. Toll-free service A toll-free number is a special-number; that enables calls to come in from anywhere without incurring a charge to the caller. The called party pays a toll tariff for the Call. How much the called party pays for a call depends on the arrangements made with the long-distance carrier.  If you look at all...
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What is Deferment in Card Payments to Read Today

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You are an employee and you are working for a company. You are unable to pay your credit card amount. So you have an option. What is Deferment?  It is a temporary suspension of the repayment of a debt. Most creditors will not offer a deferment unless a debtor’s circumstances prevent him from making payments for a temporary period of time. A debtor, therefore, may need to provide documentation of his circumstances or may need to attest to the truthfulness of the request. Credit Cards Credit card companies do not normally provide a deferment as an option. Instead, a debtor who is experiencing a financial hardship, such as unemployment or a decrease in income, may ask the creditor to agree to reduce payment amount. Many credit card companies offer hardship programs that result in a reduced interest rate and a reduced payment. This may be a short-term plan for one year or less or a long-term arrangement that results in the payoff of the debt within a specific number of yea...
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Top Valuable Sources to Learn Predictive Analytics After Your Degree

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The word predictive analytics is to increase competitive advantage and at the same time to suggest the best value products to end customers. Data analytics Why you need to go for predictive analytics The reasons are Growing data Cheaper computers and servers Easy to use software Tough economic conditions More: Case Study on data analytics The predictive analytics helps in the following areas: Detecting fraud Improve marketing campaigns Reduce risk Improving operations Growing data analytics creating many job opportunities. Where You Need to Learn Do PG or post graduation in data analytics Attend Class Room Coachings
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