Re: [ferret_users] lagged cross-correlation script

["'Gbenga Abiodun' via _OAR PMEL Ferret Users" <ferret_users@xxxxxxxx>]

Dear Dr Lawal,

Thanks for your response. I have also thought of that. I'm just wondering if there is a script that can do the lagging automatically since I need it for large data. 

Thank you. 

Jacob. 

Sent from Yahoo Mail on Android

On Sat, Jan 23, 2016 at 5:40 PM, Dr Kamoru Abiodun Lawal

<lawal_ka@xxxxxxxxxxx> wrote:

Dear Jacob,

A simpler way of doing this is to take off the first L of one of the variables and make it the last L, then do your normal correlation that will be of lag = 1. The same step can be repeated for lag = 2.

For example if x = 2, 4, 6, 8, 10, 12, 14, ........ and this is to be correlated with y = 1, 3, 5, 7, 9, 11, 13, .........

Therefore at lag= 1, x will be 4, 6, 8, 12, 14, ....., 2 while y remains untouched.

 

I hope this helps..., cheers!

 

Dr Kamoru Abiodun LAWAL

Meteorological Research and Training Institute,

Nigerian Meteorological Agency,
PMB 1215, Oshodi, Lagos, Nigeria.

.......there's no wrong time for doing the right things..........<<<<--------------------------------------------------------------------------------------------------->>>>
Climate System Analysis Group,

Department of Environmental and Geographical Science,

University of Cape Town, Private Mail Bag X3,

Rondebosch, Cape Town, 7701, South Africa.

On Saturday, 23 January 2016, 17:21, 'Gbenga Abiodun' via _OAR PMEL Ferret Users <ferret_users@xxxxxxxx> wrote:

Hi all,

Can someone please help with lagged cross-correlation script. Its urgently needed.

Thanks all.

Jacob.