You're completely free to edit/copy/alter these as you wish. Do e-mail me (see below) if you have any questions - most of these aren't thoroughly commented so some of them may be hard to follow.
Please let me know if you find any mistakes or encounter any errors using these scripts - but be aware that different user environments could cause problems for which I cannot be liable (see legal note at end of page).
|Script name||In action||Source code||More information|
|Product Moment Correlation Coefficient Calculator||pmcccalc.php||as a plain text file||Constructed during the AS Maths Statistics 1 course - although many software programs will calculate "correlation" in various forms, none (to my knowledge) lead you through the steps generally used in A level maths.|