Help needed in using resample function

i'm upsampling a signal from 100k to 30M samples using upsample function of MATLAB. But when i use resample function, the output is different.How can i use resample to get exact output like that of upsample function?

[Xylicia Richard]

Here out_I signal is Gaussain filtered.

out_I_up=upsample(out_I,5000); xx=300*fir1(100,1/5000); % order N=100, cutoff frequency=1/300 out_i=filter(xx, 1, out_I_up);

Can't i replace it with??

out_i=resample(out_I,3000,1);

Answer 1

[the cyclist]

upsample and resample do completely different things. upsample inserts zeros, while resample randomly pulls values from the array.

There is no way to make one function to behave like the other.

[Xylicia Richard]

thanks a bunch!