How to delete elements from cell arrays?

Hi, I have a cell array(1x316) which contains 316 double

numeric arrays of various sizes like 74845x1,81032x1,55434x1 and so on.

I want to delete data values from each array cells which is greater than 140 and save it in a new cell array.

Format of my data looks like below:-

inst_speed_all_user_rome.mat(cell array)->speed_kmh(variable)->

1 2 3 ... ....316(total 316 cells of arrays)

{74845x1 double},{81032x1 double},{87351x1 double},.....

sample of one array inside one of those 316 cells :

speed_kmh{1,1}-> {74845x1}= 44.889 28.445 0 156 33.46 ........

Now, for above scenario,i need to delete the data 156(which is greater than 140 here) likewise i want to delete all data values > 140 from all arrays.

Initially i have stored cell array in s1 which is a 1x1 struct with one field ->speed_kmh of size 1x316.

Please help me out on this.

This is my code but i am stuck.

    %%store cell array in struct s1
    s1 =load('inst_speed_usr_rome.mat');

    %%delete the values greater than 140 from cells 
    l = s1.speed_kmh{:};    
    to_delete = false(size(l));
    for i=1:length(s1.speed_kmh)
    if (s1.speed_kmh(i)>140)
    to_delete(i) = true;
    end
end
l(to_delete) = [];

[Image Analyst]

So you have a cell array with 316 cells. And inside each of those 316 cells is another cell array? Or is a regular numerical array inside the cells? Please read the FAQ http://matlab.wikia.com/wiki/FAQ#What_is_a_cell_array.3F before you answer.

[Jung BC]

Hi,It's a cell array of 316 cells.And each of those cells are double numeric arrays of diferent sizes.

Answer 1

[Jan]

Perhaps:

s1 = load('inst_speed_usr_rome.mat');
for k = 1:numel(s1.speed_kmh)
  v               = s1.speed_kmh{k};
  s1.speed_kmh{k} = v(v <= 140);
end

[Jung BC]

Thanks a lot Jan!You are a genius!

Answer 2

[MHN]

l(to_delete,:) = [];

[Jung BC]

Hi MHN, sorry,it didn't work out for me.

[MHN]

If it is possible, attach inst_speed_usr_rome.mat

[Jung BC]

Sorry, the file is very large in size to attach here.I have edited my question above.Hope you can analyse it more clearly.

Answer 3

[Walter Roberson]

cellfun(@(C) struct('speed_kmh', C.speed_kmh(C.speed_kmh<=140)), s1, 'Uniform', 0)