else if statements on a table

I have a 60x12 table. Each row has patient data and the overall aim is using if and else if statements determine if the patients suffers from a particular disease. I am struggling to understand how to get the code of if and else if statements to analysis each row individually and produce an outcome for each row using my if and else if statements

Answer 1

[KL]

You do not need if-else to filter data when you use a table. It would have been easier had you attached some sample data, aynway let's take the example from documentation.

https://www.mathworks.com/help/matlab/matlab_prog/access-data-in-a-table.html

First the table,

load patients
patients = table(Age,Gender,Height,Weight,Smoker,...
    'RowNames',LastName);
T = patients(1:10,:);

Now, create a dummy data as a disease column,

Disease = logical(round(rand(10,1))); %dummy data
T.Disease = Disease; %add the column to the table

My table with this new column looks like,

T =

    10×6 table

                  Age     Gender     Height    Weight    Smoker    Disease
                  ___    ________    ______    ______    ______    _______

      Smith       38     'Male'      71        176       true      false  
      Johnson     43     'Male'      69        163       false     false  
      Williams    38     'Female'    64        131       false     true   
      Jones       40     'Female'    67        133       false     true   
      Brown       49     'Female'    64        119       false     true   
      Davis       46     'Female'    68        142       false     false  
      Miller      33     'Female'    64        142       true      true   
      Wilson      40     'Male'      68        180       false     false  
      Moore       28     'Male'      68        183       false     false  
      Taylor      31     'Female'    66        132       false     false

Now, if you want to see all the patients' details who have this disease,you say,

 T(T.Disease==1,:)

result would be something like,

ans =

    4×6 table

                  Age     Gender     Height    Weight    Smoker    Disease
                  ___    ________    ______    ______    ______    _______

      Williams    38     'Female'    64        131       false     true   
      Jones       40     'Female'    67        133       false     true   
      Brown       49     'Female'    64        119       false     true   
      Miller      33     'Female'    64        142       true      true

if you want to check if a certain patient has this disease you say,

 T('Smith','Disease')

then you get,

ans =

    table

               Disease
               _______

      Smith    false

you can also combine multiple conditions like,

 T(T.Smoker==1&T.Disease==1,:)

you get the result as,

ans =

    1×6 table

                Age     Gender     Height    Weight    Smoker    Disease
                ___    ________    ______    ______    ______    _______

      Miller    33     'Female'    64        142       true      true

Hope you get an idea of how it works.

[AluminiumMan]

This is really useful. What about if the data is equal to or greater than a certain value? Rather than equalling a certain value?