Problem about the MEA tool

Dear mea user:

I am new to use mea tools,
using the MC_DataTool to open an *.mcd data ,I acquire the info like this :

Sample Rate was 25000Hz
File contains 1 data stream
*spike 1 with 51 channels

in the Matlab command line:
D=datastrm('D:/data/6201.mcd');
startTime=getfield(D,'sweepStartTime');
stopTime=getfield(D,'sweepStopTime'); %
ChannelID=47; %

then how Can I get the ampplitude of spike?

any help would be nice .

Dear Zhang Heng,

the newest version (1.4.0) of MC_DataTool allows you to export spike data to an ASCII file. You only have to click on the 'txt' button and select the desired channels. You can download the newest version of the software from our website.
If you want to read spike data with the help of Matlab you have to use the function 'nextdata'. This function is explained in the comment section of the file 'nextdata.m'.
Of particular interest is the part which describes the connection between ChannelID and ChannelName.

Kind regard
Gerald, MCS