Matlab 

Using the import tool, import the cardiac resynchronization therapy (CRT) data. The data is used to calculate if a patient is eligible for CRT treatment and organized as follows:

Column 1 Patient ID

Column 2 NYHA class (New York Health Association symptom severity)

Column 3 6MWD (6 minute walk distance in meters)

Column 4 EF (left ventricular ejection fraction in percent)

If the following are all TRUE, then a patient is eligible for CRT treatment

NYHA is 3 or higher

6MWD is less than 225 meters

EF is less than 35%

Write a script to check what patient IDs in the data are eligible for CRT. Write the patient IDs that are eligible to a text file that is titled CRTApprove and delimited with a semicolon.

Note: Your script should be robust so that if a larger or smaller data set was used, it still works. Avoid hard coding indexes.

CRT data

1;3;250;30 2;4;170;25 3;2;210;40 4;3;200;33