Add a useful package (from Source forge) for octave

[CreaPhase.git] / octave_packages / econometrics-1.0.8 / sum_moments_nodes.m

diff --git a/octave_packages/econometrics-1.0.8/sum_moments_nodes.m b/octave_packages/econometrics-1.0.8/sum_moments_nodes.m
new file mode 100644 (file)
index 0000000..7248f83
--- /dev/null
+++ b/octave_packages/econometrics-1.0.8/sum_moments_nodes.m
@@ -0,0 +1,37 @@
+# Copyright (C) 2005  Michael Creel <michael.creel@uab.es>
+# 
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; If not, see <http://www.gnu.org/licenses/>.
+
+# for internal use by gmm_estimate
+
+function contrib = sum_moments_nodes(theta, data, moments, momentargs, nn)
+
+       global NEWORLD NSLAVES
+       
+       # Who am I?
+       [info, rank] = MPI_Comm_rank(NEWORLD); 
+       
+       if rank == 0 # Do this if I'm master
+               startblock = NSLAVES*nn + 1;
+               endblock = rows(data);
+       else    # this is for the slaves
+               startblock = rank*nn-nn+1;
+               endblock = rank*nn;
+       endif   
+  
+       data = data(startblock:endblock,:);
+       contrib = feval(moments, theta, data, momentargs);
+       contrib = sum(contrib);
+       
+endfunction