Extracting value from Name-Value pairs using the Name string

Let's say I have a variable called 'test'. test is a 1x2 struct array with 2 fields - Name and Value.

test = 

  1×2 struct array with fields:

    Name
    Value 

When I open the variable 'test', this is how it looks. Each of the fields have 2 values (2 pairs of name-value pair)

How can I extract just the value of the name 'long_name' without using positional index?

Using positional index, I can do it using the following code

    test(2).Value

But I want to use the name string 'long_name' to find the corresponding value, as the 'long_name' may not always be at the 2nd position in other variables like test.

Any leads on how I could do that?

Thanks!

Answer 1

[Cris LaPierre]

ind = strcmp({test.Name},'long_name');
test(ind).Value

[Anirudha Vijay Mahagaonkar]

Perfect! Just what I was looking for. Thanks, Cris.

Answer 2

[Steven Lord]

test = struct('units', {'degrees_east', 'degrees_north'}, ...
    'long_name', {'longitude', 'latitude'})

test = 1×2 struct array with fields:
    units
    long_name

theNames = {test.long_name};
findSpecificName = ismember(theNames, 'longitude');
T = test(findSpecificName)

T = struct with fields:
        units: 'degrees_east'
    long_name: 'longitude'

q = test(ismember(theNames, 'latitude')).units

q = 'degrees_north'