clear all
close all

x = load('rates.txt'); % load the data
time = x(:,1);   % select first column
ir_cz = x(:,2);
ir_sk = x(:,3);

figure
plot(time,ir_cz,time,ir_sk,'r*-')
xlabel('time')
ylabel('%')
legend('CZ','SK')
title('Interest rates')
grid
