How do I find , using a table (of football results), how many time the home team has won to the nearest percent??

>> tab(1,:) 
ans = 1 4 2001 30 29 8 1 

Column meaning example comments

1. day of month 1
2. month of year 4 (April)
3. year 2001 (so, date was 1st April 2001)
4. home team 30 (number of team)
5. guest team 29 (number of team)
6. goals of home team 8
7. goals of guest team 1

In short, tab(1,:) states that on 1st April 2001, team 30 won at home

Answer 1

[Image Analyst]

Is "tab" a matrix of doubles, or a table?

See a very similar question I just answered: http://www.mathworks.com/matlabcentral/answers/248034-finding-how-many-times-a-team-lost-from-an-array#answer_195544

To get the home team wins and losses, you can extract columns 6 and 7, then compare, sum, and round to the nearest integer:

percentHomeWins = round(100 * sum(tab(:,6)>tab(:,7)) / size(tab, 1));

This doesn't take into account the number of wins "by team number" like my other answer.