Introduction to NeSI
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Introduction to the UNIX shell
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The shell gives you the ability to work more efficiently by using keyboard commands rather than a GUI.
Useful commands for navigating your file system include: ls , pwd , and cd .
Tab completion can reduce errors from mistyping and make work more efficient in the shell.
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Introducing R and Juypter Notebooks
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R Basics
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Effectively using R is a journey of months or years. Still you don’t have to be an expert to use R and you can start using and analyzing your data with with about a day’s worth of training
It is important to understand how data are organized by R in a given object type and how the mode of that type (e.g. numeric, character, logical, etc.) will determine how R will operate on that data.
Working with vectors effectively prepares you for understanding how data are organized in R.
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R Basics continued - factors and data frames
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It is easy to import data into R from tabular formats including Excel. However, you still need to check that R has imported and interpreted your data correctly
There are best practices for organizing your data (keeping it tidy) and R is great for this
Base R has many useful functions for manipulating your data, but all of R’s capabilities are greatly enhanced by software packages developed by the community
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