/**
* Check histogram data.
*/
INT16 CGEN_PROTECTED CHistogram::CheckHisto()
{
INT16 mode;
if (data_empty (m_hist) == TRUE)
return IERROR(this,HIS_EMPTY,0,0,0);
if (data_chtype (m_hist, T_DOUBLE) != TRUE)
return IERROR(this,HIS_TYPE,0,0,0);
m_bins = (INT32) data_descr(m_hist,DESCR2);
if (m_bins < 0 || m_bins > data_nrec(m_hist))
return IERROR(this,HIS_HISTO,0,0,0);
m_hdim = data_ndim(m_hist);
m_nhist = data_nblock(m_hist);
if (m_nhist == 0)
m_nhist = data_nrec(m_hist) / m_bins;
set_data_nblock(m_hist, m_nhist);
if (m_nhist == 0)
return IERROR(this,HIS_HISTO,0,0,0);
mode = (INT16) data_descr(m_hist,DESCR1);
if (mode >= 1 && mode <= 3)
m_hmode = mode;
else
set_data_descr (m_hist,mode,DESCR1);
return (O_K);
}
/**
* Prepare histogram data.
*
* @param x first data
* @param wv weight data
* @return max. index value or -1, if index empty
*/
INT32 CGEN_PROTECTED CHistogram::Prepare(CData* x, CData* wv)
{
INT32 imax = 1, i, n;
if (m_hist == NULL)
m_hist = data_create("hist");
m_nhist = data_nblock(m_hist);
if (data_empty(m_indexlist) != TRUE)
{
imax = CHistogram_max_index(m_indexlist, 0) + 1;
if (imax > m_nhist)
m_nhist = imax;
}
if (data_empty(wv) != TRUE)
{
imax = data_ndim(wv);
if (imax > m_nhist)
m_nhist = imax;
}
if (m_nhist == 0)
m_nhist = 1;
if (data_empty(m_hist) != TRUE)
{
data_realloc (m_hist, m_nhist * m_bins);
set_data_nrec (m_hist, m_nhist * m_bins);
m_hdim = data_dim(m_hist);
} else
{
data_reset(m_hist);
n = data_dim(x);
m_hdim = 0;
for (i = 0; i < n; i++)
if (comp_type(x,i) > 256 && i != m_icomp)
{
comp_def(m_hist, comp_text(x,i),T_DOUBLE);
m_hdim++;
}
data_arr_alloc (m_hist, m_bins * m_nhist);
}
set_data_descr(m_hist, DESCR1, (FLOAT64)m_hmode);
set_data_descr(m_hist, DESCR2, (FLOAT64)m_bins);
set_data_nblock(m_hist, m_nhist);
return (m_nhist);
}
/**
* Check consistency between histogram and minmax data.
*/
INT16 CGEN_PROTECTED CHistogram::CheckConsist()
{
INT16 ierr, mode;
INT32 nhist;
mode = HIS_MODE;
nhist = data_nblock(m_hist);
mode = CheckMinmax();
if (mode == -1)
return (NOT_EXEC);
if ((ierr = CheckHisto()) != O_K)
return (ierr);
switch (mode)
{
case 1:
if (data_nrec(m_minmax) != 2 || data_dim (m_minmax) != 1)
return IERROR(this,HIS_INCONS,0,0,0);
break;
case 2:
if (data_nrec(m_minmax) != 2)
return IERROR(this,HIS_INCONS,0,0,0);
if (data_dim(m_minmax) != data_dim(m_hist))
return IERROR(this,HIS_INCONS,0,0,0);
break;
case 3:
if (data_nrec(m_minmax) < 2 * nhist)
return IERROR(this,HIS_INCONS,0,0,0);
if (data_dim(m_minmax) != data_dim(m_hist))
return IERROR(this,HIS_INCONS,0,0,0);
break;
default:
return IERROR(this,HIS_INCONS,0,0,0);
}
return (O_K);
}
/**
* Reorganize histogram.
*
* <p>Remarks</p>
* <ul>
* <li>If (exist == NULL), the number of histogram blocks is set to nind,
* by adding empty blocks or removing blocks from the end.</li>
* <li>If (exist != NULL), histogram blocks may selected as follows:
* exist(i,0) == 0: block i is deleted;
* exist(i,0) > 0: block i is preserved</li>
* <li> Only preserved blocks will be available after reorganization! The
* index correspondence may be changed by this operation!nind is not used
* in this case.</li>
* </ul>
*
* @param exist - index existing flag sequence (may be NULL)
* @param nind - index number
* @return O_K if ok, NOT_EXEC if not executed
*/
INT16 CGEN_PUBLIC CHistogram::ReorgEx(CData* exist, INT32 nind)
{
INT32 n, ifree, i, imax, rl;
CData* h;
if (CheckHisto() != O_K)
return (NOT_EXEC);
/* --- change only histogram number */
if (exist == NULL)
{
if (nind > 0 && nind != data_nblock(m_hist))
{
data_realloc (m_hist, nind * m_bins);
set_data_nblock(m_hist, nind);
set_data_nrec (m_hist, nind * m_bins);
return (O_K);
} else
return (NOT_EXEC);
}
/* --- reorganize according to exist */
if (exist != NULL)
{
imax = data_nrec(exist);
n = 0;
for (i = 0; i < imax; i++)
{
if (dfetch (exist,i,0) > 0.0)
n++;
}
if (n == imax)
return (O_K);
h = data_create("h");
data_copy (m_hist,h);
rl = BytesPerBlock();
data_realloc (m_hist, n * m_bins);
ifree = 0;
for (i = 0; i < imax; i++)
{
if (dfetch (exist,i,0) > 0.0)
{
dl_memmove ( xaddr(m_hist,ifree,0),xaddr(h,i*m_bins,0), rl);
ifree += m_bins;
}
}
if (m_hmode == 3)
{
data_copy (m_hist,h);
rl = 2 * data_reclen(m_minmax);
data_realloc (m_minmax, n * 2);
ifree = 0;
for (i = 0; i < imax; i++)
{
if (dfetch (exist,i,0) > 0.0)
{
dl_memmove ( xaddr(m_minmax,ifree,0),xaddr(h,2*i,0), rl);
ifree += 2;
}
}
}
data_destroy(h);
set_data_nblock(m_hist, n);
return (O_K);
}
return (O_K);
}
