How to read an array?

Suppose I have an Array called Heart_Rates containing a few values in it. And I have written following code to read it and categorize its elements and display only their file names.

for b=1:length(Heart_Rates)
    if Heart_Rates(b)>=60 || Heart_Rates(b)<=80
        Normal(1,:)=filenames{b};
    elseif Heart_Rates(b)>80 || Heart_Rates(b)<100
        Abnormal(1,:)=filenames{b};
    else Heart_Rates(b)>=100
        Atrial_Fibrillation(1,:)=filenames{b};
    end
end

But I am not getting the proper output. Can u please tell me what is the proper code to correct it?

Answer 1

[Walter Roberson]

mask = Heart_Rates(b)>=60 || Heart_Rates(b)<=80;
Normal = filenames(mask);
mask = Heart_Rates(b)>80 || Heart_Rates(b)<100;
Abnormal = filenames(mask);
mask = Heart_Rates(b)>=100;
Atrial_Fibrillation = filenames(mask);

Question: what are you going to do for heart rates below 60?

[Shraddha Joshi]

Heart_Rates below 60 are also categorized as abnormal. And I tried with the code u suggested

for b=1:length(Heart_Rates) mask = Heart_Rates(b)>=60 Heart_Rates(b)<=80; Normal = filenames(mask); mask = Heart_Rates(b)>80 Heart_Rates(b)<100; Abnormal = filenames(mask); mask = Heart_Rates(b)>=100; Atrial_Fibrillation = filenames(mask); end

But I am not able to get the proper output. In fact it is not reading that Heart_Rates array at all. Could you please tell me where is the mistake and how to correct it?