Xu Cui

 

   



564 Stories by Xu Cui

Published two papers

Both are on NIRS (Near Infrared Spectroscopy). The first one is on how to detect NIRS activity earlier using multivariate (SVM) method; the 2nd one is a comprehensive comparison between NIRS and fMRI. Cui, Bray, Reiss (2010) Speeded Near Infrared Spe
4 19 sec read

Spam email from gmail “User verification”

This is a spam. Don’t reply. from Gmail Support reply-to Gmail Support to date Sat, Nov 6, 2010 at 10:13 PM subject User verification hide details 10:13 PM (13 minutes ago) The Gmail Team is working on total security on all accounts and because
0 24 sec read

Some plot functions for NIRS

1. plotTraces, plot a time series, or multiple time series on one plot, with vertical lines indicating the markers (events). Can be used for data quality check and global signal detection. 2. plotTopoMap, plot a map of activation. 3. plot2, scatter p
7 22 sec read

Android: Status Icon Meanings

http://www.wirelessandmobilenews.com/2010/01/nexus-one-android-an-droid-tips-2day-status-icon-meanings.html
0 1 sec read

Excel: how to fix a cell in formula?

Assume the formula is A1+B1, and you want to keep B1 fixed for other rows, then use A1 + $B$1
1 4 sec read

Convert images to matrix

Quite often you need to convert an image (or multiple images) to a MatLab matrix for further analysis and visualization (e.g. extracting time series, multivariate pattern analysis, etc). SPM provides handy functions for this: P = spm_select; % select
3 21 sec read

Wavelet Coherence

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 using the MatLab toolbox provided by Grinsted et a
18 1 min read

【转】静静的小河

离家不远处有一条静静的小河 闲暇时我和孩子总有一段时光在那儿度过 清清的河水静静地流淌 只偶有几头到河边吃草的老牛慢慢走过 柔顺飘逸的苔丝和水草为小河装点了绿意 一群群小鱼在上面散步跳舞唱歌 思绪像随
0 0 sec read

Standard deviation and standard error

Standard deviation (std): standard deviation of the sample Standard error, or standard error of the mean (sem), is the standard deviation of the mean. \(sem=std/\sqrt{N}\) Most errorbars in scientific publications refer to standard error. Quite often
0 22 sec read