Multiply structure by a constant

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rockstar49
rockstar49 2023-1-12
评论： Bora Eryilmaz 2023-1-12
Like to multiply a structure with fields by a constant, but it giving an error. Is there another way to do this?

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回答（2 个）

Matt J
Matt J 2023-1-12
编辑：Matt J 2023-1-12
Ran in:
s.a=1; s.b=2,
s = struct with fields:
a: 1 b: 2
S=structfun(@(f)10*f,s,'uni',0) %multiply by 10
S = struct with fields:
a: 10 b: 20
Bora Eryilmaz
Bora Eryilmaz 2023-1-12
Ran in:
You have to cycle through the individual fields of the structure:
s = struct('a', [1 2 3 4], 'b', -1)
s = struct with fields:
a: [1 2 3 4] b: -1
for f = fieldnames(s)'
s.(f{1}) = 4 * s.(f{1});
end
s
s = struct with fields:
a: [4 8 12 16] b: -4
  2 个评论
rockstar49
rockstar49 2023-1-12
It is mainly 1 by 1 value, do you still need to do this as i have variable names
Bora Eryilmaz
Bora Eryilmaz 2023-1-12
Not sure what you mean by "variable names". Are you referring to the variable name of the struct or the fields of the struct?

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