how to calculate the correlation coefficient of two data sets ( containing dates) ?

I have to column arrays which containing dates...

I want to calculate the correlation coefficient between column A and column B

I use this code :

but it didn't work. it seems that i have first to convert dates to numbers

any idea on how i could calculate the correlation coefficient between A & B ?

Answer 1

[the cyclist]

You can use the datenum command to convert dates to numeric.