Round values in cell array to n(10)?

How to round the following...

cell = {15;26;37;48;50;68};

cell2 = roundn(cell,1)

to

cell2 = {20;30;40;50;50;70};

How would it change if I wanted to round just up or down and not to the nearest n(10)?

Answer 1

[the cyclist]

c = {15;26;37;48;50;68};

N = -1; % Digit to round to. N=-1 will round to tens. N=0 will round to nearest integer
c2 = cellfun(@(x)round(x,N),c)

Side note: It is a bad idea to name a variable with a MATLAB keyword such as "cell".