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How to do Filtering in DataFrame?
Information and facts are major asset in digital world. Data is fuel that is running this world. However, everything is not required by everyone. Only specific part of data is relevant for certain use cases. Thus filtering data becomes important. By filtering we can filter data as per requirement and generate pattern and knowledge to…
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How to work with DataFrame in Python?
Once we data in DataFrame i.e. DataFrame is prepared, independent of source of data (csv,xls,db etc.) we can work with it, like it is a table in database, selecting element of our interest. We have loaded data from csv file and created DataFrame. Now, we will see different select operation on this DataFrame. Selecting a…
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How to work with DataFrame in Python?
Python language has vast application. Data analysis and manipulation is one of many application. We can work on data using Pandas library in Python for generating data analytics and manipulating data to generate useful patterns. What is Pandas? Pandas is a Python library which is used to work with sequential and tabular data. It has…
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Data Backup In Unix
In this data driven world, data is generated in every second. There is always need the data to use it in future for some analytics or processing. What is tar? tar is an data backup and recovery tool in unix systems. You can archive files into single archive also restore individual files from archives using…
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What is Ridge Regression?
Ridge regression was originally developed to deal with the problem of having more feature than data point. It can also be used to add bias into our estimations, giving better estimate. Shrinkage methods allow us to throw out unimportant parameters so that we can get a better feel and understanding of the data. It can…
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How To Search File Using Extension In Linux
Search file using a file extension such as *.txt, *.png, *.mp4, *.java, *.py or *.yml etc. $ sudo find / -type f -name “*.mp4” OR $ sudo find / -type f -iname “*.mp4” Let’s Understand the above commands sudo: privileged escalation. -type f: Only search for files. -type d: Only search for directories or folders.…
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Nginx Upgrade | Latest Version
nginx [engine x] is an HTTP and reverse proxy server, a mail proxy server, and a generic TCP/UDP proxy server, originally written by Igor Sysoev. For a long time, it has been running on many heavily loaded Russian sites including Yandex, Mail.Ru, VK, and Rambler. According to Netcraft, Nginx served or proxied 22.36% of the busiest sites in November 2021. Here…
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What Is Pi ?
Pi is the first digital currency that we can mine on mobile phones. It is developed by Dr. Nicolas Kokkalis and Dr. Chengdiao Fan to the problem: Centralization of power and money put 1st.