Mercurial > hg > map
annotate testPrograms/myConv.m @ 22:45f28c49461e master
removing duplicate changes
author | Ray Meddis <rmeddis@essex.ac.uk> |
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date | Mon, 13 Jun 2011 18:21:05 +0100 |
parents | 35af36fe0a35 |
children |
rev | line source |
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rmeddis@15 | 1 signalDuration=.1; |
rmeddis@15 | 2 spikeTime= signalDuration/2; |
rmeddis@15 | 3 for sampleRate=[1000 2000]; |
rmeddis@15 | 4 disp(['sample rate= ' num2str(sampleRate)]) |
rmeddis@15 | 5 |
rmeddis@15 | 6 %% testing convolution speculation |
rmeddis@15 | 7 dt= 1/sampleRate; |
rmeddis@15 | 8 signalLength=round(signalDuration/dt); |
rmeddis@15 | 9 spikeArray=zeros(1,signalLength); |
rmeddis@15 | 10 spikeLocation=round(spikeTime/dt); |
rmeddis@15 | 11 spikeArray(spikeLocation)=1; |
rmeddis@15 | 12 disp(['length of spike array= ' num2str(length(spikeArray))]) |
rmeddis@15 | 13 t=dt*(1:length(spikeArray)); |
rmeddis@15 | 14 plot(t, spikeArray) |
rmeddis@15 | 15 |
rmeddis@15 | 16 %% convolution function |
rmeddis@15 | 17 CNspikeToCurrentTau=0.01; |
rmeddis@15 | 18 t=dt:dt:3*CNspikeToCurrentTau; |
rmeddis@15 | 19 CNalphaFunction=... |
rmeddis@15 | 20 (1/CNspikeToCurrentTau)*t.*exp(-t/CNspikeToCurrentTau); |
rmeddis@15 | 21 |
rmeddis@15 | 22 plot(t, CNalphaFunction) |
rmeddis@15 | 23 |
rmeddis@15 | 24 %% normalise conv function |
rmeddis@15 | 25 CNalphaFunction=CNalphaFunction/sum(CNalphaFunction); |
rmeddis@15 | 26 plot(t, CNalphaFunction) |
rmeddis@15 | 27 disp(['area under function= ' num2str(sum(CNalphaFunction))]) |
rmeddis@15 | 28 |
rmeddis@15 | 29 %% adjust for spike current |
rmeddis@15 | 30 CNcurrentPerSpike=2; |
rmeddis@15 | 31 CNalphaFunction=CNalphaFunction*CNcurrentPerSpike; |
rmeddis@15 | 32 plot(t, CNalphaFunction) |
rmeddis@15 | 33 |
rmeddis@15 | 34 %% convolution |
rmeddis@15 | 35 result=conv(spikeArray,CNalphaFunction); |
rmeddis@15 | 36 t=dt*(1:length(result)); |
rmeddis@15 | 37 plot(t, result) |
rmeddis@15 | 38 disp(['area under function= ' num2str(sum(result))]) |
rmeddis@15 | 39 |
rmeddis@15 | 40 end |
rmeddis@15 | 41 |
rmeddis@15 | 42 |
rmeddis@15 | 43 |