R Language Data.frame and Package

I’m working on a Computer Science question and need an explanation to help me understand better.

During class we used R for our practical data mining applications.

(a)We often used objects of class data.frame as data structures. Explain the key features of the data.frame objects. What are some of its strengths and weaknesses?

During class we used R for our practical data mining applications.

(b) What is an R package?

(c)

You have been hired as a security and data analyst for a company operating an online social media platforman. You are tasked to work on a project to identify possible threats related to fake user accounts (so called sibyls ). How can you get started on the project? Try to break it down using the the six phases of the CRISP-DM process. Start your analysis by explaining briefly what the goal of each phase of CRISP-DM is. Use bullet structured lists and short sentences to stucture your response. Do not write paragraphs of prose text.

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