w*****y 发帖数: 736 | 1 【 以下文字转载自 Biology 讨论区 】
发信人: wangphy (wangphy), 信区: Biology
标 题: 波士顿地区谁会MATLAB来分析pclamp记录全细胞信号?
发信站: BBS 未名空间站 (Thu Apr 3 19:49:01 2014, 美东)
最近试着用MATLAB来分析膜片钳记录的信号。比如信号的powerspectrom,frequency-
time,event detection and cross-correlation between two channels. 谁会用,请
不吝赐教。谢谢!!!!! | w*****y 发帖数: 736 | | b**z 发帖数: 1351 | 3 too easy
for power spectrum, use psd
%notice, F0 is 1000/dt, which determins the df1,df2, df3 which even
larger
%than 500 Hz.
%Nx=32768;
Nx=16384;
[pxs,dfs]=psd(vs,Nx,F0,hanning(Nx),0,0.95,'mean');
figure;loglog(dfs,pxs)
for correlation
use xcorr
【在 w*****y 的大作中提到】 : 【 以下文字转载自 Biology 讨论区 】 : 发信人: wangphy (wangphy), 信区: Biology : 标 题: 波士顿地区谁会MATLAB来分析pclamp记录全细胞信号? : 发信站: BBS 未名空间站 (Thu Apr 3 19:49:01 2014, 美东) : 最近试着用MATLAB来分析膜片钳记录的信号。比如信号的powerspectrom,frequency- : time,event detection and cross-correlation between two channels. 谁会用,请 : 不吝赐教。谢谢!!!!!
| w*****y 发帖数: 736 | 4 我可以load abf文件,但然后用psd, or spectrogram or scorer j经常提示错误,不
知道为什么?
【在 b**z 的大作中提到】 : too easy : for power spectrum, use psd : %notice, F0 is 1000/dt, which determins the df1,df2, df3 which even : larger : %than 500 Hz. : %Nx=32768; : Nx=16384; : [pxs,dfs]=psd(vs,Nx,F0,hanning(Nx),0,0.95,'mean'); : figure;loglog(dfs,pxs) : for correlation
| b**z 发帖数: 1351 | 5 把数据先存成TXT文件再用MATLAB
【在 w*****y 的大作中提到】 : 我可以load abf文件,但然后用psd, or spectrogram or scorer j经常提示错误,不 : 知道为什么?
| w*****y 发帖数: 736 | 6 【 以下文字转载自 Biology 讨论区 】
发信人: wangphy (wangphy), 信区: Biology
标 题: 波士顿地区谁会MATLAB来分析pclamp记录全细胞信号?
发信站: BBS 未名空间站 (Thu Apr 3 19:49:01 2014, 美东)
最近试着用MATLAB来分析膜片钳记录的信号。比如信号的powerspectrom,frequency-
time,event detection and cross-correlation between two channels. 谁会用,请
不吝赐教。谢谢!!!!! | w*****y 发帖数: 736 | | b**z 发帖数: 1351 | 8 too easy
for power spectrum, use psd
%notice, F0 is 1000/dt, which determins the df1,df2, df3 which even
larger
%than 500 Hz.
%Nx=32768;
Nx=16384;
[pxs,dfs]=psd(vs,Nx,F0,hanning(Nx),0,0.95,'mean');
figure;loglog(dfs,pxs)
for correlation
use xcorr
【在 w*****y 的大作中提到】 : 【 以下文字转载自 Biology 讨论区 】 : 发信人: wangphy (wangphy), 信区: Biology : 标 题: 波士顿地区谁会MATLAB来分析pclamp记录全细胞信号? : 发信站: BBS 未名空间站 (Thu Apr 3 19:49:01 2014, 美东) : 最近试着用MATLAB来分析膜片钳记录的信号。比如信号的powerspectrom,frequency- : time,event detection and cross-correlation between two channels. 谁会用,请 : 不吝赐教。谢谢!!!!!
| w*****y 发帖数: 736 | 9 我可以load abf文件,但然后用psd, or spectrogram or scorer j经常提示错误,不
知道为什么?
【在 b**z 的大作中提到】 : too easy : for power spectrum, use psd : %notice, F0 is 1000/dt, which determins the df1,df2, df3 which even : larger : %than 500 Hz. : %Nx=32768; : Nx=16384; : [pxs,dfs]=psd(vs,Nx,F0,hanning(Nx),0,0.95,'mean'); : figure;loglog(dfs,pxs) : for correlation
| b**z 发帖数: 1351 | 10 把数据先存成TXT文件再用MATLAB
【在 w*****y 的大作中提到】 : 我可以load abf文件,但然后用psd, or spectrogram or scorer j经常提示错误,不 : 知道为什么?
| l****1 发帖数: 66 | 11 A waste of time, do not use matlab.
Saving .abf to .txt, for some large abf is time consuming.
In order to do it better and easier, a python module called stfio is awesome
. Pick up python to save most of your time.
If you really don't want to waste 1 month to learn python, then a similar
software stimfit will suit your need. |
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