Finding min values in structure array

Below is my current structure array, and I would like to be able to search the structure and find the minimum age.

field1='relation';
value1={'spouse', 'son', 'son', 'daughter', 'daughter'};
field2='name';
value2={'Rebekah', 'Caleb', 'Isaac', 'Faith', 'Annabel'};
field3='state';
value3={'OH', 'VA', 'VA', 'VA', 'VA'};
field4='age';
value4={'29','7','6','4','2'};
s = struct(field1,value1,field2,value2,field3,value3,field4,value4);

[per isakson]

Are the values of age a mistake? They are character strings,

value4={'29','7','6','4','2'};

I replaced the assignment by

value4={29,7,6,4,2};

Then finding min is simple

>> [s.age]
ans =
    29     7     6     4     2
>> [val,ix] = min([s.age])
val =
     2
ix =
     5
>>

[BlkHoleSun]

yes, it was a mistake. thank you. [val,ix] = min([s.age]); s(ix) now I get all the info from the min age. Thanks again!

Answer 1

[BlkHoleSun]

[s.age] ans = 29 7 6 4 2 >> [val,ix] = min([s.age]) val = 2 ix = 5

Answer 2

[Nicolas Schmit]

First, convert the age data from string to numeric, and concatenate it into an array.

ageArray = arrayfun(@(x) str2double(x.age), s);

Now, find the index of the minimum age.

[~, iAgeMin] = min(ageArray);

Answer 3

[Jan]

This struct is impractical for searching, as well as it is to search for a minimum in values stored as strings. But it works:

num      = str2double({s.age});
minValue = min(num);