import data from excel into matlab gives false date

4 views (last 30 days)
Locks on 10 Apr 2013
hi, I have importet data from excel into matlab using the following code:
filename = 'vola_regimes.xlsx';
sheet = 1;
xlRange_d = 'C4:C132';
xlRange_dV = 'H4:H132';
date_SP = xlsread(filename, sheet, xlRange_d)
SP = xlsread(filename, sheet, xlRange_sp)
date_VIX = xlsread(filename, sheet, xlRange_dV)
VIX = xlsread(filename, sheet, xlRange_VIX)
That is working perfectly, but the problem is that range C4:C132 and H4:H132 are both dates. the import fuction didn't work ant therefore I changed the format in excel to general instead of date. then I am able to imporat the data, but from what I can see when I use the datestr function, matlab is not recognizing the data correctly and instead of 05.08.2002 it gives me 06-Aug-0102
Is there a way to change that?

Accepted Answer

Leah on 10 Apr 2013
Edited: Leah on 10 Apr 2013
matlab and excel use different dates to as a starting reference. You just have to add 693960 to the excel date numbers
Excel: 1 represents 1/1/1900 12:00:00 a.m
Matlab: 1 represents 01-Jan-0000
SAS: 0 represents January 1, 1960
Legend has it that the founders of SAS wanted to use the approximate birth date of the IBM 370 system... cute, but annoying

More Answers (0)

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by