Using trigonometric functions in R
R uses radiant as input for trigonometric functions.
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Now we can plot the function.
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And by playing with the functions we get a funny graphic output.
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And if we include the tangent, the graphic looks like this:
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Audio file conversion with afconvert (mac)
I was looking for a simple and elegant way to convert a high amount of audio files from one format (.caf) to another (.aif). The solution i found is a very elegant one and also comes included with your operating system – if using a MAC.
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And now here is...Read More »
Creating a beat frequency interference with R
A beat frequency is a mix of two frequencies which are very close to each other but not similar. The trick is that they are to close to each other to be separated by the human ear as two distinct frequencies, thus generating a single tone with fluctuating amplitude behavior...Read More »
Syndication feed reader using the Project Rome API - (1_FeedReader.java)
[crayon-5b5569caeb5e8932924005/]Implementing a MySQL DB connection via ooRexx by using BSF4ooRexx - (3_MySql_connector.rxj)
[crayon-5b5569caec3bc777173331/]- the Open Object Rexx (ooRexx) web site
- ROME is a set of RSS and Atom Utilities for Java
- Introduction to REXX and ooRexx – Flatscher Rony G.
- http://wi.wu-wien.ac.at:8002/rgf/
- http://wi.wu-wien.ac.at/rgf/diplomarbeiten/BakkStuff/2010/201001_Stoppacher/Project_Rome_in_combination_with_BSF4ooRexx_Presentation.pdf
...Read More »
ooRexx with BSF4ooRexx - "java,net.URL" Classes (2_getinfo.rxj)
[crayon-5b5569caed047410536645/]- http://www.oorexx.org/
- http://sourceforge.net/projects/oorexx/
- http://rometools.github.io/rome/
- http://wi.wu-wien.ac.at/rgf/diplomarbeiten/BakkStuff/2010/201001_Stoppacher/Project_Rome_in_combination_with_BSF4ooRexx_Presentation.pdf
Syndication Feed Reader (1_Read.rxj) - ooRexx with BSF4ooRexx
[crayon-5b5569caee5f5372171070/]- http://www.oorexx.org/
- http://sourceforge.net/projects/oorexx/
- http://rometools.github.io/rome/
- http://wi.wu-wien.ac.at/rgf/diplomarbeiten/BakkStuff/2010/201001_Stoppacher/Project_Rome_in_combination_with_BSF4ooRexx_Presentation.pdf
Analyzing the World GDP Development using R
This is just a simple example of how to download and visualize data from the web by using the R-Project framework. Specifically data tables including GDP values from the world-bank data section are used which include absolute GDP per country data from 1980 to 2012.
An example of a syndication feed reader using the Project Rome API with BSF4ooRexx - "java.net.URL" feed reader (2_Rome.rxj)
[crayon-5b5569caf1e78824800227/]- http://www.oorexx.org/
- http://sourceforge.net/projects/oorexx/
- http://rometools.github.io/rome/
- http://www.facultas.at/list/SFRE8554C
- http://wi.wu-wien.ac.at/rgf/diplomarbeiten/BakkStuff/2010/201001_Stoppacher/Project_Rome_in_combination_with_BSF4ooRexx_Presentation.pdf
R Code:
Using trigonometric functions in R
R uses radiant as input for trigonometric functions.
# calculating rad
pi/2
90*pi/180 # transforming degree into radiant
degr<-c(0:360)
degr
rad<-grad*(pi/180)
rad
Now we can plot the function.
sin(rad)
plot(sin(rad))
And ...
Analyzing the World GDP Development using R
This is just a simple example of how to download and visualize data from the web by using the R-Project ...
Creating a beat frequency interference with R
A beat frequency is a mix of two frequencies which are very close to each other but not similar. The ...
Java Code:
ooRexx Code:
