Data science, power BI and python tutorial. Learn power bi and SQL for business intelligence and data science. .
Data pre-processing is the process of preparing and cleaning of data for further analysis. It is the first and key step in machine learning. Data preprocessing phases cover all the activities to construct the final dataset. There are several techniques to pre-process the data, we can perform following operation on dataset. import the required library
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We can merge two dataframes in one dataframe based on one common column in python. pandas provide merger function to join two datasets. First, read two dataset using pandas dataframe. merger two dataset (dataset1 and dataset 2) using primary key invoice id, in both dataset invoice id is common. In above code, merger function is
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Read data from SQL Server in Python : Data from SQL server to Python SQL (Structured Query Language) is a standard language for managing relational databases. It allows users to perform tasks such as querying data, inserting new records, updating existing records, and deleting records. SQL is used in a wide range of applications, including
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In python we can read data from different sources using pandas library in few line of code. Pandas is a open source mostly used data analysis library which support to read data from multiple sources and transforming data as per analysis requirement. here we discuss how to read and save excel and csv data in
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