MATLAB: How can i return a value based on mutliple fields

Question

I have a structure named N2, with three fields – Components, PowerConsequences, and ICTConsequences.

>>N2 =

struct with fields:

Components: [43660×2 double]

PowerConsequences: [43660×1 double]

ICTConsequences: [43660×1 double]

>> fieldnames(N2)

ans =

3×1 cell array

{'Components' }

{'PowerConsequences'}

{'ICTConsequences' }

The components field is a vector with two columns, so N2.Components returns a list like this. It describes the combination of 2 components in a system, and the other fields describe effects.

290 296

291 292

291 293

291 294

291 295

291 296

292 293

And so on. How do i return a value in the field PowerConsequences or ICTConsequences based on two specific values in the field Components – ie for the values (290,296) in the Components field, how do i return the value in the PowerConsequences Field?

Answer 1

Try:

id = find(N2.Components(:,1) == 290 & N2.Components(:,2) == 296);
PowerConsequences_out = N2.PowerConsequences(id);
ICTConsequences_out = N2.ICTConsequences(id);

I hope it helps.