Question

Code 2: The text file bpdata. txt contains the following information in each column: ID #, name, systolic blood pressure, diastolic blood pressure. Write a MATLAB script that calculates if each individual in the data set is "Ideal", "Pre-High", or "High" blood pressure classification. Classification is based on the following I. ldeal : Systolic > 90 and < 120 AND Diastolic > 60 and < 80 2. Pre High: Systolic > 120 and <140 AND Diastolic> 80 and90 3. High: Systolic> 140 and Diastolic> 90 Save the classification and names with each classification to an Excel file called "BPResuls" An example of what the Excel file data would look like is given below. 1 Idea Pre-High 2 BobBrad High Charollete Jane Thomas Stan

The data is as follows:

1/Joe Bloggs/118/75

2/Josephine Bloggs/163/91

3/Zhang San/105/81

4/Anders Andersen/158/103

5/Erika Mustermann/131/84

6/Ola Nordmann/117/68

7/Jan Kowalski/127/88

Answer 1

Important Note: Please ensure that you put the input text file "bpdata.txt" inside the Matlab's workspace directory before running the program.

Matlab Code :

% Clearing the Workspace
clc
clear all

%% Main Program begins
filename = 'bpdata.txt';
fid = fopen(filename);
% checking whether file was opened successfully or not
if fid == -1
    fprintf('Error! File ''%s'' not found\n', filename);
    return
end

% reading the text file using the delimiter '/'
data  = textscan(fid, '%d%s%d%d', 'Delimiter', '/');

% closing the file
fclose(fid);

% printing the stats
fprintf('ID\t\tName\t\t\t\tBP Classification\n')
disp('----------------------------------------------')

for i = 1:numel(data{3})
    sys = data{3}(i);
    dias = data{4}(i);
    name  = data{2}{i};
    id = data{1}(i);
    bpType = getBloodPressureType(sys, dias);
    fprintf('%d\t\t%-18s\t\t%-16s\n', id, name, bpType)
end


%% User defined function to return the Blood Pressure type
% Returns a type classification based on input systolic and diastolic pressure
function [type] = getBloodPressureType(sys, dias)
type = 'Undefined';
if ( sys > 90 && sys < 120 ) && (dias > 60 && dias < 80)
    type = 'Ideal';
elseif ( sys > 120 && sys < 140 ) && (dias > 80 && dias < 90)
    type = 'Pre - High';
elseif ( sys > 140 && dias > 90 )
    type = 'High';
end
end

OUTPUT :

Command Window ID Name BP Classification Joe Bloggs Josephine Bloggs Zhang San Anders Andersen Erika Mustermann ola Nordmann Jan Kowalski Ideal High Undefined High Pre - High Ideal Pre - High 2 7