center the data before computing the coefficients; remove variance member of innovati...

[pspp-builds.git] / src / math / ts / ChangeLog

diff --git a/src/math/ts/ChangeLog b/src/math/ts/ChangeLog
index fdc8e88ba173e6f5001be865d3bd15e7e8982580..a353ffce1a5f3f51c635762fab5edb5e5fe79352 100644 (file)
--- a/src/math/ts/ChangeLog
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@@ -1,3 +1,28 @@
+2006-07-16  Jason Stover  <jhs@math.gcsu.edu>
+
+       * innovations.c (get_coef): Fixed diagonal elements and call to
+       innovations_convolve().
+       (subtract_mean): New function. Subtract the mean before computing
+       the coefficients.
+
+2006-07-15  Jason Stover  <jhs@math.gcsu.edu>
+
+       * innovations.c (get_covariance): Fixed computation of
+       covariance. Made COV[i] the lag i covariance.
+       (update_cov): New function.
+       (get_covariance): Use gsl_vector_view's to get rows of correct
+       lag.
+
+2006-07-14  Jason Stover  <jhs@math.gcsu.edu>
+
+       * innovations.c (innovations_struct_init): Fix initialization of
+       coefficient. 
+
+2006-07-13  Jason Stover  <jhs@math.gcsu.edu>
+
+       * innovations.c (pspp_innovations): Altered function to use struct
+       design_matrix. 
+
 2006-07-06  Jason Stover  <jhs@math.gcsu.edu>
 
        * innovations.c (get_covariance): Fixed subscripts.