Change Values of array to zero

Hey guys wondering is anybody can help me out here. I have this array that prints this out:

0.6366, 0.0000, -0.2122, -0.0000, 0.1273

Which is fine.

But when I print it to a table using

set(handles.Table1, 'Data', cnarray);

It give me this:

0.6366, 3.8982e-17, -0.2122, -3.8982e-17, 0.1273

How could i fix this? I want those really low numbers to be zero. They are zero in the array when i print it out but not when i put it in a table. Help

Answer 1

[James Tursa]

The numbers are very small but not exactly 0. They just print as 0 with the display format used. To get them to exactly 0 you could do something like this:

>> tolerance = 1e-10;
>> x = [0.6366, 3.8982e-17, -0.2122, -3.8982e-17, 0.1273]
x =
    0.6366    0.0000   -0.2122   -0.0000    0.1273
>> x(abs(x)<tolerance) = 0
x =
    0.6366         0   -0.2122         0    0.1273

Note that now the numbers print as 0 and not 0.0000, which indicates that the numbers are exactly 0.

[Jesse Abruzzo]

Thank you good sir! Worked like a charm.

Answer 2

[Steven Lord]

Use logical indexing to force those small values to be exactly 0.

A = [-1 -0.5 -1e-10 0.5 0 2 1e-6]
A(abs(A) <= 0.1) = 0

[Jesse Abruzzo]

This is also a good answer I just went this the other guys because he answered first. Thanks!