Can you find any pattern in the two signals, green and blue? The blue signal is the brain wave (measured by NIRS) of a person when he is pressing some buttons (the timing of button pressing is shown i
Wavelet transform coherence (WTC) is a method for analyzing the coherence and phase lag between two time series as a function of both time and frequency (Chang and Glover 2010). Here I played with it
SVM is mostly commonly used for binary classifications. But one branch of SVM, SVM regression or SVR, is able to fit a continuous function to data. This is particularly useful when the predicted varia
Update 2021/2/27: If you find griddata3 not working, try to change griddata3 to griddata. I was asked where to get nirs2img script. Here it is. The download link is at the bottom of this article. nirs2img is to create an image file from the input data. Then theimage file can be viewed by a
Picture: The vascular bed is treated as an expandable venous compartment (a balloon). If there is a burst of flow, the volume will increase and then return to baseline. That’s where ‘balloon’ comes from. During steady state (i.e. wi
Use htpasswd to create password file, or add password htpasswd -c .htpasswd fred htpasswd .htpasswd linda Then create a .htaccess file with the following text (not the path to the password file has to be full path) AuthUserFile /full/path/to/.htpassw
When you use mxmlc to compile files, you might encounter this error. You need to add source-path option: mxmlc -source-path C:/p/y/src/ -file-specs MyClass.as -debug=true
The paper: http://www.plosbiology.org/article/info%3Adoi%2F10.1371%2Fjournal.pbio.1000167 The primer by Prof Jennifer Coull: http://www.plosbiology.org/article/info%3Adoi%2F10.1371%2Fjournal.pbio.1000166 Discuss at Peaya: http://www.peaya.com/paper/s
Basel problem: find the exact value of $$1+\frac{1}{2^2}+\frac{1}{3^2}+\frac{1}{4^2}+… = ?$$ Solution: We have by Taylor expansion: $$\sin(x)=x-\frac{x^3}{3!}+\frac{x^5}{5!}-\frac{x^7}{7!}+…$$ Dividing through x we have, $$\frac{\sin(x)}{
