From 13a30a0a4e95f1a71577441c20298cd87256334f Mon Sep 17 00:00:00 2001
From: Marco Ratto <marco.ratto@jrc.ec.europa.eu>
Date: Wed, 17 Jan 2018 19:33:39 +0100
Subject: [PATCH] add a new case for ratios between endogenous variables, like
trade balance to GDP.
---
matlab/utilities/dataset/quarterly2annual.m | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/matlab/utilities/dataset/quarterly2annual.m b/matlab/utilities/dataset/quarterly2annual.m
index 8663a09ff..13c6bafd9 100644
--- a/matlab/utilities/dataset/quarterly2annual.m
+++ b/matlab/utilities/dataset/quarterly2annual.m
@@ -14,6 +14,7 @@ function [ya, yass, gya, gyass] = quarterly2annual(y,yss,GYTREND0,type,islog,aux
% 5 annual price as quantity weighted average
% 6 annual quantity from average price
% 7 annual nominal from Q real and deflator
+% 8 annual ratio [e.g. trade balance to GDP]
% islog 0 level (default)
% 1 log-level
% 2 growth rate Q frequency
@@ -120,6 +121,19 @@ switch type
yn = (y+yss).*(yaux+yauxss) - yss.*yauxss;
[ya, yass] = quarterly2annual(yn,yss.*yauxss,GYTREND0+GYTREND0aux,typeaux,0,0);
GYTREND0=GYTREND0+GYTREND0aux;
+
+ case 8
+ % numerator
+ yn = y;
+ [yna, ynass] = quarterly2annual(yn,yss,GYTREND0,typeaux(1),0,0);
+ % denominator
+ yd = yaux;
+ [yda, ydass] = quarterly2annual(yd,yauxss,GYTREND0aux,typeaux(2),0,0);
+ % ratio
+ yass = ynass/ydass;
+ ya = (yna+ynass)./(yda+ydass)-yass;
+ GYTREND0 = GYTREND0 - GYTREND0aux;
+
otherwise
error('Wrong type input')
end
--
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