clear; clc; close all;

tbl1 = readtable("2330.TW.csv");
figure;
plot(tbl1.Date, tbl1.Close);

tbl2 = readtable("TSM.csv");
hold on;
plot(tbl2.Date, tbl2.Close);

tbl = innerjoin(tbl1, tbl2, "key", "Date");