Publications by Quantargo Blog
Launch of New Course Platform
Launch of New Course Platform After months of hard work we are really excited to launch our brand-new course platform to learn and apply data science. Together with the new platform we also developed the first new course Introduction to R which is available for free now! This release is a big milestone for us on our path to provide people with t...
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R is everywhere
R is everywhere Learn what R is all about Get an overview of why R is useful Submit your first code exercise Introduction to R The most powerful statistical computing language on the planet. Norman Nie, Founder of SPSS R is a programming language and environment to work with data. It is loved by statisticians and data scientists for its expre...
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R is everywhere
R is everywhere Learn what R is all about Get an overview of why R is useful Submit your first code exercise Introduction to R The most powerful statistical computing language on the planet. Norman Nie, Founder of SPSS R is a programming language and environment to work with data. It is loved by statisticians and data scientists for its expre...
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Combine values into a vector
Combine values into a vector Everything is a vector Get to know different data types in R Learn how to create vectors Use the : operator to create numeric sequences Use the concatenate function c() to create vectors of different data types 1:100 c(1, 2, 3, 4) c("abc", "def", "ghi") c(TRUE, FALSE, TRUE) Introduction to Vectors A vector is a col...
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Create variables through assignments
Usually you want to store vectors and other objects into variables so you can work with them more easily. Variables are like a box with a name. You can then refer to the name to see what is stored inside. Learn how to create a variable Use variables to store objects and vectors Reuse assigned objects through a variable name ___ <- ___ Assigning...
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Use basic operators
R is not only good for analysing and visualizing data, but also for solving maths problems or comparing data with each other. Plus you can use it just like a pocket calculator. Use R as a pocket calculator Use arithmetic operators on vectors Use relational operators on vectors Use logical operators on vectors ___ + ___ ___ - ___ ___ / ___ ___ *...
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Call existing R code through functions
When you write code, functions are your best friends. They can make hard things very easy or provide new functionality in a nice way. Through functions you gain access to all the powerful features R has to offer. Call functions with function names and round brackets Use basic mathematical functions on vectors Customize functions through paramete...
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Use existing functions and data through packages
Packages give you access to a huge set of functions and datasets, most of which are provided by the generous R community. They are the secret sauce which makes it possible to use R for pretty much anything you can imagine. Additionally, lots of packages are open source which can be a great learning resource. Get to know the concept of packages i...
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Build a data frame from vectors
Tabular data is the most common format used by data scientists. In R, tables are respresented through data frames. They can be inspected by printing them to the console. Understand why data frames are important Interpret console output created by a data frame Create a new data frame using the data.frame() function Define vectors to be used for s...
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Create and convert tibbles
Tibbles are the modern reimagination of data frames and share many commonalities with their ancestors. The most visible difference is how tibble contents are printed to the console. Tibbles are part of the tidyverse and used for their more consistent behaviour compared to data frames. Learn the difference between data frames and tibbles Create ...
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