Since the introduction of electronic devices with touch controls, interactive 3D graphics objects have become increasingly popular in multimedia electronic books (ebooks). The Simulink 3D Animation available from The MathWorks, Inc. provides the necessary tools to create and export 3D graphics objects for inclusion in documents such as multimedia ebooks, interactive webpages, and presentations. Continue reading “Creating Animated 3D Files with MATLAB”
We can create video files, which we then integrate into multimedia publications. In principle, any video material can be used, such as recorded laboratory and field experiments, screen video captures or recorded computer animations. Here I demonstrate how to create a video of an animation with MATLAB.
Continue reading “Creating Video Files with MATLAB”
Let us create some audio files with MATLAB, which we then integrate into multimedia publications. In principle, any audio material can be used, such as recorded nature sounds. Here is a preview of a section of a new chapter about multimedia publications of the upcoming 2nd Edition of MDRES.
Continue reading “Creating Audio Files with MATLAB”
A common error in the regression analysis is that bivariate data with an exponential relationship are log-transformed, then a best-fit line is calculated using a classical linear regression using the least squares, before the result is backtransformed. Here is a MATLAB example to show how to do it better. Continue reading “Classical Linear Regression of Log-Transformed Data”
Running means are very popular to smooth noisy time series. Unfortunately, they have unpleasant side effects. Here is a MATLAB example to demonstrate the effect of running means.
Continue reading “Better Avoid Running Means”
The graphics of MATLAB have been greatly improved since the very rustic plots of the early 1990s. In contrast to previous editions, in which all the graphics were edited by designer Elisabeth Sillmann (blaetterwaldDesign) with Adobe Illustrator, the majority of the graphics of the 4th edition of MRES were not processed after being exporting from MATLAB. Here is the script for creating a variant of Figure 4.9 from MRES.
Continue reading “Create Publishable Graphics with MATLAB, Part 1”
Here is another great MATLAB-based website, the one about recurrence plots by my colleague and long-term collaborator Norbert Marwan from Potsdam Institute for Climate Impact Research (PIK). Recurrence plots for the analysis of complex systems are popular in many fields such as climate science, flow mechanics and medicine. Continue reading “Cross Recurrence Plot Toolbox”
Here is a nice application of the script from MRES to count sand grains in microscope images. In September 2013 a biologist from the National Museums of Kenya joint us on an expedition to the Suguta Valley in the Northern Kenya Rift. At that time hundreds of thousands of lesser flamingos left the Central Kenia Rift, especially from the Nakuru basin, and went to the Suguta Valley. The biologist started to count the flamingos, while I immediately thought about doing this automatically with a little MATLAB script.
Continue reading “Counting Flamingos with MATLAB”