histogram_axis_cells()

static int histogram_axis_cells ( int  histo_cells_target, int  histo_ndims, double  edge_ratio  )

inlinestatic

Definition at line 166 of file gserialized_estimate_support.h.

{
        double scaled;
        double axis_cells;
 
        if (histo_cells_target <= 0 || histo_ndims <= 0)
                return 1;
 
        if (!(edge_ratio > 0.0) || !isfinite(edge_ratio))
                return 1;
 
        scaled = (double)histo_cells_target * (double)histo_ndims * edge_ratio;
        if (!(scaled > 0.0) || !isfinite(scaled))
                return 1;
 
        axis_cells = pow(scaled, 1.0 / (double)histo_ndims);
        if (!(axis_cells > 0.0) || !isfinite(axis_cells))
                return 1;
 
        if (axis_cells >= (double)INT_MAX)
                return INT_MAX;
 
        if (axis_cells <= 1.0)
                return 1;
 
        return (int)axis_cells;
}

Referenced by compute_gserialized_stats_mode(), and histogram_axis_allocation_guards().

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