How to remove cells that have the same value at the first row, first column as the previous cell, in a cell array?

I have tried the following, being "C1" the original cell array and "C1_no_repeats" the cell array that I want to create by deleting the cells of "C1" that have a similar value at (1,1) as the previous cell of "C1":

for aa=1:size(C1)

if C1{aa}(1,1)==C1{aa+1}(1,1)

C1_no_repeats{aa+1}=[];

else C1_no_repeats{aa+1}=C1{aa+1};

end

end

It didn't work: not only C1_no_repeats{1} is empty, but C1_no_repeats stops after the first cell with repeated (1,1) values (if C1_no_repeats has 100 cells and cell 5 has the same values at (1,1) as cell 4, then C1_no_repeats has only 4 cells...)

[Arif Hoq]

please attach your data here

[Daniela Pereira]

Here's an example for C1.

Answer 1

[David Hill]

There is only one repeated value in the example provided. You could round (1,1) values if you want them to be close but not exactly the same.

b=[];
for aa=1:length(indexed_finalf_before2)
  b=[b,indexed_finalf_before2{aa}(1,1)];
end
[~,idx]=unique(b,'stable');
no_repeats=indexed_finalf_before2(idx);