Change Values of array to zero
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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
采纳的回答
James Tursa
2016-10-26
编辑：James Tursa
2016-10-26
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.
更多回答（1 个）
Steven Lord
2016-10-26
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
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