Samouczki z analizy danych

How to sort a data frame in R.

Learn more about LOD expressions in Tableau and how to use them.

Learn how to create a scatterplot in R. The basic function is plot(x, y), where x and y are numeric vectors denoting the (x,y) points to plot.

Learn how to use arithmetic and logical operators in R. These binary operators work on vectors, matrices, and scalars.

Merging data is a common task in data analysis, especially when working with large datasets. The merge function in R is a powerful tool that allows you to combine two or more datasets based on shared variables.

Improve your graphs in R with titles, text annotations, labelling of points, minor tick marks, reference lines, custom axes, and a chart legend.

Learn how to use the SQL ROUND function in this tutorial. It covers the implementation of the ROUND function in Oracle, MySQL, PostgreSQL, and SQL Server.

Unlock the power of Bayesian Optimization for hyperparameter tuning in Machine Learning. Master theoretical foundations and practical applications with Python to enhance model accuracy.

Learn how to combining multiple plots in R into one graph with either the par() or layout() functions. This page includes coding examples.

Learn the fundamentals of cloud data warehouse management using Snowflake. Snowflake is a cloud-based platform that offers significant benefits for companies wanting to extract as much insight from their data as quickly and efficiently as possible.

Learn the most popular unified platform for big data analytics - Databricks. The tutorial covers the seven core concepts and features of Databricks and how they interconnect to solve real-world issues in the modern data world.

Dive into our detailed Alteryx tutorial and learn how this powerful data analytics tool can transform your data handling experience. This guide covers everything from installation to advanced workflow automation in Alteryx, making it the perfect resource for beginners and seasoned data professionals alike.