diff --git a/usedMcode/downsample.m b/usedMcode/downsample.m
index 8a7c04c..d6e43d9 100644
--- a/usedMcode/downsample.m
+++ b/usedMcode/downsample.m
@@ -1,4 +1,4 @@
 function [out]=downsample(in,noSamples)
-    indices=randperm(size(in,1));
-    out=in(indices(1:noSamples));
+    stepSize=size(in,2)/noSamples;
+    out=in(fix((0:noSamples-1)*stepSize)+1);
 end
\ No newline at end of file
diff --git a/usedMcode/generateTrainingData.m b/usedMcode/generateTrainingData.m
index c348d0b..35533f0 100644
--- a/usedMcode/generateTrainingData.m
+++ b/usedMcode/generateTrainingData.m
@@ -23,7 +23,7 @@
     trainingDataEEGlf=permute(tempEEGlf,[2 1 3]);
     
     parfor i=33:size(signal,2)-3
-        tempEMG(i-32,:,:)=waveformLength(filtfilt(double(E),double(F),filtfilt(double(C),double(D),filtfilt(double(A),double(B),double(signal(:,i))))),bci_sf,windowEMG,shift);
+        tempEMG(i-32,:)=waveformLength(filtfilt(double(E),double(F),filtfilt(double(C),double(D),filtfilt(double(A),double(B),double(signal(:,i))))),bci_sf,windowEMG,shift);
     end
     trainingDataEMG=permute(tempEMG,[2 1 3]);