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Unable to perform assignment because dot indexing is not supported for variables of this type.

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Roxanne Esguerra
Roxanne Esguerra 2020-7-23
评论： Roxanne Esguerra 2020-7-24
Hi this is my code,
experiments(1).num = 33;
experiments(1).code = 'x';
experiments(1).weights = [200.34 202.45];
experiments(1).height.feet = 5;
experiments(1).height.inches = 6;
experiments(2).num = 11;
experiments(2).code = 't';
experiments(2).weights = [111.45 111.11];
experiments(1).height.feet = 7;
experiments(1).height.inches = 2;
I get this error whenever I run it,
Unable to perform assignment because dot indexing is not supported
for variables of this type.
Error in experimentsinitialization (line 4)
experiments(1).height.feet = 5;
When I try to call height of experiments(1), I get this,
>> experiments(1).height
ans =
5 6
However, I must get something like this,
>> experiments(1).height
ans =
feet: 5
inches: 6
What should I replace? or add?
Thank you in advance!

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采纳的回答

Walter Roberson
Walter Roberson 2020-7-23
The code you posted is self-consistent. However, in some earlier code, you set
experiments(1).height = [5 6]
and you did not remove that.
My guess is that you modified your code along the way, but you did not clear the experiments variable so it still has the old data around.
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Walter Roberson
Walter Roberson 2020-7-24
clear experiments
would remove that old data.
If you want to keep old data, but you want to convert height from being a vector of two elements, into being a struct with feet and inches, then
fi = experiments(1).height;
experiments(1).height = struct('feet', fi(1), 'inches', fi(2));
This would replace the entire experiments(1).height with a struct, and there is no problem replacing an entire variable.

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