[Pspp-commits] [SCM] GNU PSPP branch, master, updated. v0.6.1-580-g9de9345

[Jason H Stover]

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- Log -----------------------------------------------------------------
commit 9de93455099eff93bb2d8b730eea8413e7ab1121
Author: Jason H Stover <address@hidden>
Date:   Wed Apr 29 12:27:59 2009 -0400

    covariance-matrix.c: (is_covariance_contributor) Removed unnecessary 
recursion.
    
    covariance-matrix.c (is_origin): Do not count a numeric variable as
    the origin. Call is_origin only for categorical variables.
    
    covariance-matrix.c (ordered_match_nodes): New function.
    
    covariance-matrix.c (match_nodes): Use bitwise operators and
    ordered_match_nodes for hashing instead of so many ifs.
    
    covariance-matrix.c (hash_numeric_alpha): Use hash_value_short to hash
    combinations of numeric and categorical variables.
    
    covariance-matrix.c (get_value_from_subscript): New function to match
    values and columns in a design matrix.
    
    covariance-matrix.c: Removed unused design matrix struct sums from
    struct covariance matrix. To get the means, use struct moments
    instead.
    
    covariance-matrix.c (covariance_accumulator_to_matrix): Use
    design_matrix_set_element instead of covariance_matrix_insert. Drop
    unused function covariance_matrix_insert.
    
    covariance-matrix.c (covariance_accumulator_hash): Use hash_bytes instead 
of hsh_hash_bytes.

-----------------------------------------------------------------------

Summary of changes:
 src/math/covariance-matrix.c |  209 ++++++++++++++++++++++++------------------
 1 files changed, 120 insertions(+), 89 deletions(-)


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