FIR Filter 10th order with a for loop

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i'm trying to filter a signal with a 10th order differential equation and for loop, with the following code, but i'm keep getting this error
Array indices must be positive integers or logical values.
Error in EOG (line 106)
new_data = data_h(k:-1:k-10);
can you please help me fix it , and tell me if it's a code or just syntax error?
TimeStamp = 0:T:59.99;
N = 10;
Fg = 1;
Wn = Fg/2;
aTP = fir1(N,Wn);
for k = 1:numel(data_h)
new_data = data_h(k:-1:k-10);
Y(k) = aTP.*new_data;
end
plot(TimeStamp,data_h,TimeStamp,Y)
legend("data_h","Y")

Accepted Answer

David Fletcher
David Fletcher on 2 May 2021
On the first iteration of your loop the indexing expression will expand to
new_data = data_h([1 0 -1 -2 -3 -4 -5 -6 -7 -8 -9])
As the error says: you can't index with zero or negative values
  2 Comments
David Fletcher
David Fletcher on 3 May 2021
In this case the error is that you are trying to cram a vector into a single column. If you want to save the data from each iteration use:
Y(k,:) = aTP.*new_data';

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