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
KS test is like T test; but it tests not only the mean but also the distribution. The null hypothesis for this test is that the two data sets are drawn from the same continuous distribution. In matlab, you can use function kstest2 to perform two-samp
You may get this error: could not convert text value to numeric value. Error #3132: Data type mismatch. People have discussed this error related to date column. Here is another case where this error could happen: when a column in sqlite is BIGINT and
ROI stands for region of interest. The region is predefined usually from glm contrast. For example, you find visual cortex is activated when a flash is presented through glm analysis, you may then do more analysis on this particular region. ROI analy
Assume CON14 is our subject ID and it is inside directory $SUBJECTS_DIR. After the display window and the control panel pops up, try playing with the menus and buttons. tkmedit for volume tkmedit CON14 rawavg.mgz tkmedit CON14 rawavg.mgz lh.pial -aux
int in Adobe AIR takes value -2,147,483,648 (-2^31) to 2,147,483,647 (2^31-1). integer (primary key) in sqlite takes value -9,223,372,036,854,775,808 (-2^63) to 9,223,372,036,854,775,807 (2^63-1). (source)
Employee Directory is an AIR sample application from which I learned a lot. (try it) Here I post some of what I learned here. 1. introduction 2. structure 2.1 singleton 2.2 command 2.3 Cairngorm 3. ui 3.1 style 3.2 size 3.3 component 4. flow 5 events
When writing html, I frequently find I need to use the code for some characters. Here is the table http://www.w3.org/MarkUp/html-spec/html-spec_13.html
