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tsdata.cpp
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/***************************************************************************
* Copyright (C) 2003 by Bernhard Friedrichs *
* bfriedr@isi2.metronix.de *
* *
* 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, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
#include "tsdata.h"
/*! constructor
Initialize data and values with zeros
*/
TSData::TSData() {
this->samples = this->skip_samples_read =
this->app_lsb = 0;
this->wl = 0; this->stacks = 0; this->time_col = 0; this->relative_time = 0;
this->ovr = 0;
this->dmean = this->dmedian = this->dmin = this->dmax = this->dstddev = DBL_MAX;
this->use_min_std_f = this->use_max_std_f = DBL_MAX;
}
/*!
destructor
*/
TSData::~TSData() {
}
/*!
init data vector; file can be read in small parts *
*/
int TSData::init_data(size_t s, bool ints) {
if (!s) {
cerr << "\nTSData::init_data -> initialise with s > 0 please\n";
exit(0);
}
// calling resize deletes existing data and creates a new valarray
this->samples = s;
if (!ints) ddata.resize(this->samples);
else idata.resize(this->samples);
this->samples_orig = this->samples;
atm_select.resize(this->samples, 0); // should be ZERO all over
new_atm_select.resize(this->samples, 0); // all selected for proc
return s;
}
/*!
force re-calculation if one of these is required
max, min, mean, median, stddev
*/
void TSData::data_changed() {
this->dmean = this->dmedian = this->dmin = this->dmax = this->dstddev = DBL_MAX;
if (this->ddata.size() && wl) this->stacks = this->ddata.size() / this->wl;
calc_lsb();
}
/*!
assuming the header with samples is read; while initializing the data we make sure
that samples is not greater than samples
*/
size_t TSData::set_samples(size_t samples) {
if (samples > this->samples_orig) {
cerr << "TSData::set_samples -> you can not read more samples than existing in the file" << endl;
cerr << "total, try: " << samples << ", " << this->samples_orig << endl;
cerr << "EXIT" << endl;
return EXIT_SUCCESS;
}
else {
this->samples = samples;
return this->samples;
}
}
/*!
get a vector containing data for excluding parts from processing
*/
size_t TSData::set_select(vector<bool>& select) {
size_t i;
for (i = 0; i < this->samples; i++) atm_select[i] = select[skip_samples_read + i];
cerr << "TSData::set_select -> total " << select.size() << " used " << atm_select.size() << " tags: " << TSData::tags() << endl;
return atm_select.size();
/*
if (select.size() != atm_select.size()) {
cerr << "TSData::getselect -> boolean vector sizes are different!; nothing done" << endl;
return 0;
}
else {
atm_select = select;
return atm_select.size();
}
*/
}
/*!
amx min analysis
*/
size_t TSData::maxmin_select(size_t length, double max_min ) {
cerr << "TSData::maxmin_select got length, max_min" << length << " " << max_min << endl;
my_valarray::maxmin_select(ddata, length, max_min, atm_select);
return 0;
}
/*!
get a double at position i
*/
void TSData::set_data(const size_t& i, const double &d) {
this->ddata[i] = d;
TSData::data_changed();
}
/*!
import an external valarray
*/
void TSData::set_data(const valarray<double>& d) {
if (ddata.size() != d.size()){
cerr << "TSData::set_data -> getting data vector; old size " << ddata.size() << " ";
ddata.resize(d.size());
atm_select.resize(d.size());
ddata = d;
cerr << "differs from new; new size now: " << ddata.size() << "max/min: " << ddata.max() << " " << ddata.min() << endl;
}
ddata = d;
this->samples = d.size();
samples = d.size();;
TSData::data_changed();
}
/*!
import an external valarray
*/
void TSData::set_data_int(const valarray<int>& di) {
if (idata.size() != di.size()){
cerr << "TSData::set_data -> getting data vector; old size " << idata.size() << " ";
idata.resize(di.size());
atm_select.resize(di.size());
idata = di;
cerr << "differs from new; new size now: " << idata.size() << "max/min: " << idata.max() << " " << idata.min() << endl;
}
idata = di;
this->samples = di.size();
samples = di.size();;
// no! TSData::data_changed();
}
int TSData::set_stddev_param(double& dmin, double& dmax, size_t& iovr){
if (dmin == DBL_MAX || dmax == DBL_MAX || !iovr) {
cerr << "TSData::set_stddev_param -> error in getting stddev parameter! " << endl;
cerr << "min_std_factor, max_std_factor, overlay: " << dmin << " " << dmax << " " << iovr << endl;
return EXIT_FAILURE;
}
else {
use_min_std_f = dmin;
use_max_std_f = dmax;
ovr = iovr;
return 1;
}
}
/*!
needed for = operator; copy the time series header
*/
int TSData::cpheader(const TSData& M) {
//tsheader::cpheader(M);
TSHeader::get_lsb();
return 1;
}
/*!
having a time series samples we calculate for every wl a standard deviation
the result is stored inside the class in stddevs and the beginning of each wl in posv
this enables later to use this results for ex - including segments from processing
*/
size_t TSData::stddevarray(size_t wl, size_t ovr, unsigned int do_atm) {
int nwindows;
nwindows = my_valarray::stddev_array(ddata, stddevs, posv, wl, ovr);
my_stddev_median = my_valarray::median(stddevs);
my_stddev_stddev = my_valarray::stddev(stddevs);
my_stddev_mean = stddevs.sum() / stddevs.size();
cerr << "TSData::stddev_array -> stddev min: " << stddevs.min() << "\x9stddev max: " << stddevs.max() << endl;
cerr << "TSData::stddev_array -> stddev mean: " << my_stddev_mean;
cerr << "\x9stddev median: " << my_stddev_median << "\x9stddev: " << my_stddev_stddev << endl;
// we will do a min max analysis
if (use_min_std_f != DBL_MAX && use_max_std_f != DBL_MAX) {
size_t i, j, sel = 0;
new_atm_select.assign(new_atm_select.size(), 1);
for (i = 0; i < posv.size(); i++) {
if ( (stddevs[i] > use_min_std_f * my_stddev_stddev + my_stddev_median) &&
(stddevs[i] < use_max_std_f * my_stddev_stddev + my_stddev_median)) {
sel++;
for (j = posv[i]; j < posv[i] + wl - ovr; j++) new_atm_select[j] = 0;
}
}
if (do_atm == 2 || do_atm == 4) {
cerr << "TSData::stddev_array -> merging selections, existing: " << check_true(atm_select) << " ";
merge_bool(atm_select, new_atm_select);
}
else atm_select = new_atm_select;
cerr << check_true(atm_select) << " " << check_true(new_atm_select) << endl;
cerr << "TSData::stddev_array -> " << sel << " window tags selected FOR processing and "
<< check_true(atm_select)/wl << " NOT" << endl;
}
return nwindows;
}
/*!
Algorithm to suppres spikes in time series
(e.g. electric fences)
*/
size_t TSData::despike(size_t shoulder_len, double spike_height,
size_t relaxation, double spike_skewness, unsigned int do_atm){
// do_atm 1 = new/create; 2 = merge 4 = use
size_t ii = 0, jj = 0, kk = 0, nn;
// double offset = 0.0;
valarray<double> sl(shoulder_len);
double smean;
// form my_valarray.h included the "find" algorithm
ii = my_valarray::fnd_spk(ddata, spikes, shoulder_len, spike_height, relaxation, spike_skewness);
cerr << "TSData::despike -> marked points " << ii << flush;
if (spikes.size()) {
// save orig. value for later analysis - this is not including the data manipulated inside the
// relaxation area
for (ii = 0; ii < spikes.size(); ii++) spike_vals.push_back(ddata[spikes[ii]]);
if (do_atm == 1) { // clear old selection because we receive the do_atm == 1 == create/new
for (ii = 0; ii < atm_select.size(); ii++) atm_select[ii] = 0;
}
// copy into the atm selection vector and de-select within the relaxation range
for (ii = 0; ii < spikes.size(); ii++) {
for (nn = spikes[ii] - relaxation; nn < spikes[ii] + relaxation; nn++)
if(nn < ddata.size()) atm_select[nn] = 1;
}
// the very first values can not be corrected because of missing "left shoulder"
for (ii = relaxation + 1; ii < ddata.size() ; ii++) {
if ( ii == spikes[jj]) {
sl = ddata[slice(ii - shoulder_len - relaxation, shoulder_len, 1)];
smean = sl.sum()/shoulder_len;
// here we define WHAT to do with the marked points
for (kk = ii - relaxation/2; kk < ii + relaxation/2; kk++) {
// atd[nm].ddata[kk] *= (smean/atd[nm].ddata[kk]); // take the left sided value
if (ddata[kk] > sl.max()) ddata[kk] = sl.max() - (sl.max()- smean)/2.;
else if (ddata[kk] < sl.min()) ddata[kk] = sl.min() + (smean - sl.min())/2.;;
}
ii = kk; // update global index after we moved behind the relaxation
jj++; // check for next spike index
if ( kk >= spikes[jj]) { // if next index is inside the relaxation
do { // we don't need him anymore
jj++;
} while ( kk >= spikes[jj] && spikes[jj]);
}
}
}
} // end spikes.size()
cerr << endl;
// force re-calculation if requested
TSData::data_changed();
return spikes.size();
}
/*!
Algorithm to eliminate steps in time series
*/
size_t TSData::destep(size_t step_len, double step_height, size_t relaxation, double skewness,
unsigned int do_atm){
size_t ii = 0, jj = 0, k;
double offset = 0.0;
// do_atm = 1 = new / create; do_atm = 2 merge
ii = my_valarray::fnd_stp(ddata, steps, step_len, step_height, relaxation, skewness);
cerr << "TSData::destep -> marked points " << steps.size() << endl;
if (steps.size()) {
// clear slection if do_atm was set to 1 == create/new
if (do_atm == 1) for (ii = 0; ii < atm_select.size(); ii++) atm_select[ii] = 0;
// tag the selection vector
for (ii = 0; ii < steps.size(); ii++) {
k = steps[ii];
atm_select[k-1] = 1;
atm_select[k] = 1;
atm_select[k+1] = 1;
}
// save orig. value for later analysis
for (ii = 0; ii < steps.size(); ii++) step_vals.push_back(ddata[steps[ii]]);
for (ii = 1; ii < ddata.size() - 1; ii++) {
ddata[ii] += offset; // take the left sided value
if ( ii == steps[jj]) {
cerr << "TSData::destep -> step at " << ii << endl;
offset = ddata[ii] - ddata[ii + 1]; // new offset
/* if ( (ii < ddata.size() - 3) && ((ii+1) == (steps[jj+1])) ) {
cerr << "TSData::destep -> two sample step at " << ii << "offset: " << offset << endl;
ii++; jj++;
ddata[ii] += offset;
offset = ddata[ii] - ddata[ii + 2]; // prevent "shoot over"
}
*/
jj++;
}
}
}
// force re-calculation if requested
TSData::data_changed();
return steps.size();
}
/*!
applies filter with 32x, 4x decimation *
*/
int TSData::filter(unsigned int reduction) {
if (reduction == 4 || reduction == 32 || reduction == 2|| reduction == 25 || reduction == 8) {
valarray<double> tddata, coeff;
if (reduction == 4) {
coeff.resize(71);
copy(&coeff4[0], &coeff4[70], &coeff[0]);
}
if (reduction == 32) {
coeff.resize(471);
copy(&coeff32[0], &coeff32[470], &coeff[0]);
}
if (reduction == 25) {
coeff.resize(501);
copy(&coeff25[0], &coeff25[500], &coeff[0]);
}
if (reduction == 2) {
coeff.resize(35);
copy(&coeff2[0], &coeff2[34], &coeff[0]);
}
if (reduction == 8) {
coeff.resize(159);
copy(&coeff8[0], &coeff8[158], &coeff[0]);
}
samples_orig = samples;
cerr << "TSData::filter -> coeff -> " << coeff.size() << endl;
cerr << "TSData::filter -> " << reduction << "x decimation ";
this->samples = my_valarray_double::filx(this->ddata, tddata, reduction, coeff, 1.0);
this->datetime += long(coeff.size()/(2. * this->samplefreq));
this->samplefreq /= reduction;
this->skip_samples_read = 0;
cerr << "TSData::filter -> new sample freq: " << this->samplefreq << "Hz (" << 1/this->samplefreq << "s), ";
cerr << this->samples << " samples" << endl;
cerr << "TSData::filter -> new start time: " << GMTtime(datetime) << endl;
this->stoptime = this->datetime + long (this->samples/this->samplefreq);
this->ddata.resize(samples);
this->ddata = tddata;
this->atm_select.resize(this->ddata.size());
}
else {
cerr << "reduction 2, 4, 8, 32, 25 posssible; argument was : " << reduction << endl;
exit(0);
}
// force re-calculation
TSData::data_changed();
return 1;
}
/*!
\fn TSData::fir_filter(fir_order, cutlow, cuthigh)
*/
size_t TSData::fir_filter(size_t fir_order, double cutlow, double cuthigh, size_t firfil_reduct)
{
valarray<double> tddata, coeff;
coeff.resize(fir_order);
samples_orig = samples;
cerr << "TSData::fir_filter -> coeff -> " << coeff.size() << endl;
if (cuthigh == DBL_MAX) cuthigh = this->samplefreq;
if (!firfil_reduct) tddata.resize(this->ddata.size()- fir_order + 1);
else tddata.resize( (this->ddata.size()- fir_order + 1) / firfil_reduct);
//fir_dsgn(T* first, T* last, const T samplefreq, T CutLow, T CutHigh)
//mtx::detrend<double>(&coeff[0], &coeff[coeff.size()]);
mtx::fir_dsgn<double>(&coeff[0], &coeff[coeff.size()], this->samplefreq, cutlow, cuthigh);
if (!firfil_reduct) {
if (!mtx::fil_fir<double>(&this->ddata[0], &this->ddata[this->ddata.size()], &tddata[0], &tddata[tddata.size()], &coeff[0], &coeff[coeff.size()])) {
exit (EXIT_FAILURE);
}
}
else {
if (!mtx::fil_fir_reduce<double>(&this->ddata[0], &this->ddata[this->ddata.size()], &tddata[0], &tddata[tddata.size()], &coeff[0], &coeff[coeff.size()], firfil_reduct )) {
exit (EXIT_FAILURE);
}
}
// bfrtsmp::fir_dsgn(&coeff[0], &coeff[coeff.size()], this->samplefreq, cutlow, cuthigh);
// if (!bfrtsmp::fil_fir(&this->ddata[0], &this->ddata[this->ddata.size()], &tddata[0], &tddata[tddata.size()], &coeff[0], &coeff[coeff.size()])) {
// exit (EXIT_FAILURE);
// }
this->datetime += long((fir_order-1)/(2. * this->samplefreq));
this->skip_samples_read = 0;
cerr << "TSData::fir_filter -> new start time: " << GMTtime(datetime) << endl;
this->stoptime = this->datetime + long (this->samples/this->samplefreq);
this->ddata.resize(tddata.size());
this->ddata = tddata;
this->samples = this->ddata.size();
this->atm_select.resize(this->ddata.size());
return 1;
}
/*!
uses akima spline for producing articial sampling rates
*/
size_t TSData::resample(double new_sample_freq) {
cerr << "TSData::resample -> generating new sampling frequency from " << samplefreq << " -> " << new_sample_freq << endl;
valarray<double> tddata;
samples = my_valarray_double::resample(ddata, tddata, samplefreq, new_sample_freq);
init_data(samples);
samplefreq = float(new_sample_freq);
cerr << "TSData::resample -> done, " << samplefreq << ", " << samples << endl;
ddata = tddata;
// force re-calculation if requested
TSData::data_changed();
return 1;
}
/*!
reads parts of the file or complete file \n
also modify datetime, calculate stop time \n
skip and than the number of points (samples)
*/
size_t TSData::read(ifstream& ifs, size_t skip_samples_read, size_t samples, const size_t n_slice) {
// test input file
if (!ifs) {
cerr << "\nTSData::read -> can not read ifstream";
exit(0);
}
#ifdef use_shift_to_swap
cerr << "TSData::read -> using byte swap (s); " << endl;
#endif
#ifdef use_template_to_swap
cerr << "TSData::read -> using byte swap (t); " << endl;
#endif
size_t i;
size_t skip_complete_channel_data = 0;
size_t skip_slicesamples = 0;
this->skip_samples_read = skip_samples_read;
// handle incorrect values first
if (this->skip_samples_read > this->samples_orig) {
cerr << "\natsdata::read -> you skip more samples than existing in the file skip:" << this->skip_samples_read << " exist:" << this->samples_orig << "\n";
exit(0);
}
else if ( samples + this->skip_samples_read == this->samples_orig) {
this->samples = samples;
}
else if (!samples ||
(this->skip_samples_read < samples && samples == this->samples_orig) ) {
this->samples = samples - this->skip_samples_read;
}
else if (samples > this->samples_orig) {
cerr << "\natsdata::read samples is greater than total samples in file\n";
exit(0);
}
if (this->skip_samples_read + this->samples > this->samples_orig) {
cerr << "\natsdata::read -> you try to skip and read more samples than existing in the file\n";
cerr << "skip: " << skip_samples_read << " samples: " << this->samples << " orig samples: " << this->samples_orig << endl;
cerr << "if you want to filter data where you know that the start time is the same for all file try the option -sync2 -nogrid to avoid adjustment of start time " << endl;
exit(0);
}
// include function header data into object
init_data(this->samples);
cerr << "TSData::read -> skipping " << skip_samples_read << " samples ";
if (headertype == "ats" || headertype == "bgrf1" || headertype == "emimt24") {
if (ifs.tellg() != streampos(headerlength)) {
cerr << "TSData::read -> wrong file position is: " << ifs.tellg() << " should be " << headerlength << " ... correcting" << endl;
ifs.seekg(headerlength);
}
if ( n_slice && this->tslices.size()) {
// try to fetch the slice
for (size_t jjj = 0; jjj < n_slice; ++jjj) {
skip_slicesamples += this->tslices.at(jjj).iSamples;
}
cerr << "TSData::read -> skipping " << n_slice << " slices, new data pos: " << skip_slicesamples << endl;
}
// skip data is neccessary ************************************************************************
if (skip_samples_read + skip_slicesamples || channel_no) {
// init dummy vector
if (channel_no) cerr << "test: reading channel no: " << channel_no << endl;
//skip_complete_channel_data = channel_no * goe.channel_blocksize() / n_channels;
if (storagebits == 32) {
for ( i = 0; i < skip_samples_read + skip_slicesamples + skip_complete_channel_data; i++) {
ifs.read(static_cast<char *> (static_cast<void *>(&idata32)), sizeof( int));
if (ifs.eof()) {
cerr << endl << endl << "file ended unexpectetly at " << i << endl << endl;
exit(0);
}
}
}
if (storagebits == 16) {
for ( i = 0; i < skip_samples_read + skip_slicesamples + skip_complete_channel_data; i++) {
ifs.read(static_cast<char *> (static_cast<void *>(&idata16)), sizeof( int));
if (ifs.eof()) {
cerr << endl << endl << "file ended unexpectetly at " << i << endl << endl;
exit(0);
}
}
}
}
// end skip data
//modify the datetime
datetime = datetime + long (skip_samples_read / samplefreq);
stoptime = datetime + long (this->samples / samplefreq);
cerr << "TSData::read -> reading " << this->samples << " samples " << endl;
cerr << "TSData::read -> starting at date: " << GMTtime(datetime) << "TSData::read -> stopping at date: " << GMTtime(stoptime);
cerr << "TSData::read -> ADCOffset: " << adc_dcoffset << " LSBVal: " << lsbval << " extra factor: " << adc_factor << endl;
if (storagebits == 32) {
for (i = 0; i < this->samples; i++ ) {
ifs.read(static_cast<char *> (static_cast<void *>(&idata32)), sizeof( int));
#ifdef use_shift_to_swap
idata32 = bswap_32(idata32);
#endif
#ifdef use_template_to_swap
tbswap(idata32);
#endif
ddata[i] = (double) (idata32 - adc_dcoffset) * lsbval * adc_factor;
// cerr << idata32 << "--" << ddata[i] << endl;
if (ifs.eof()) {
cerr << endl << endl << "file ended unexpectetly at " << i << endl << endl;
exit(0);
}
}
}
if (storagebits == 16) {
for (i = 0; i < this->samples; i++ ) {
ifs.read(static_cast<char *> (static_cast<void *>(&idata16)), sizeof( short int));
#ifdef use_shift_to_swap
idata16 = bswap_16(idata16);
#endif
#ifdef use_template_to_swap
tbswap(idata16);
#endif
ddata[i] = (double) (idata16 - adc_dcoffset) * lsbval * adc_factor;
if (ifs.eof()) {
cerr << endl << endl << "file ended unexpectetly at " << i << endl << endl;
exit(0);
}
}
}
}
/*
if (headertype == "goe_rap") {
if (ifs.tellg() != streampos(goe.afdb)) {
cerr << "TSData::read -> wrong file position is: " << ifs.tellg() << " should be afb: " << goe.afdb << endl;
}
short int *dumps;
if (channel_no || skip_samples_read) { // if we do not read channel_no 0 we have to skip bytes
i = channel_no * goe.channel_blocksize() / n_channels + skip_samples_read;
dumps = new short int [i];
for (j = 0; j < i; j++)
ifs.read(static_cast<char *> (static_cast<void *>(&dumps[j])), sizeof( short int));
delete[] dumps;
}
datetime = datetime + long (skip_samples_read / samplefreq);
cerr << "TSData::read -> reading " << this->samples << " samples ";
for (i = 0; i < this->samples; i++) {
ifs.read(static_cast<char *> (static_cast<void *>(&sdata)), sizeof(short int));
#ifdef use_shift_to_swap
sdata = bswap_16(sdata);
#endif
#ifdef use_template_to_swap
tbswap(sdata);
#endif
// cerr << sdata << " ->" << ifs.tellg() << " ";
sdata += SHRT_MIN;
ddata[i] = double (sdata);
}
ddata *= lsbval;
}
*/
cerr << "TSData::read -> finished\n";
return 1;
}
// end read
/*!
write the complete file
*/
int TSData::write(ofstream& ofs, size_t nbits) {
// it should not be neccessary to calculate the LSBValue here!
// should be done earlier
if (!ofs) {
cerr << "\natsdata::write -> can not write to ofstream";
exit(0);
}
#ifdef use_shift_to_swap
cerr << "TSData::write -> using byte swap (s); " << endl;
#endif
#ifdef use_template_to_swap
cerr << "TSData::write -> using byte swap (t); " << endl;
#endif
size_t i;
if (nbits == 32) {
for (i = 0; i < this->samples; i++) {
idata32 = int(ddata[i]/lsbval);
//cerr << idata32 << " " << ddata[i] << " " << lsbval << endl;
#ifdef use_shift_to_swap
idata32 = bswap_32(idata32);
#endif
#ifdef use_template_to_swap
tbswap(idata32);
#endif
ofs.write(static_cast<char *> (static_cast<void *>(&idata32)), sizeof( int));
}
}
if (nbits == 16) {
for (i = 0; i < this->samples; i++) {
idata16 = (short int) (ddata[i]/lsbval);
#ifdef use_shift_to_swap
idata16 = bswap_16(idata16);
#endif
#ifdef use_template_to_swap
tbswap(idata16);
#endif
ofs.write(static_cast<char *> (static_cast<void *>(&idata16)), sizeof( int));
}
}
return 1;
}
/*!
write a single binary double datum to stream
*/
int TSData::writedouble(ofstream& ofs, size_t& sampleno) {
dtemp_ddata = ddata[sampleno];
#ifdef use_shift_to_swap
bswap_32(dtemp_ddata);
#endif
#ifdef use_template_to_swap
tbswap(dtemp_ddata);
#endif
ofs.write(static_cast<char *> (static_cast<void *>(&dtemp_ddata)), sizeof( double));
return 1;
}
/*!
write a single binary float datum to stream
*/
int TSData::writefloat(ofstream& ofs, size_t& sampleno) {
ftemp_ddata = float(ddata[sampleno]);
#ifdef use_shift_to_swap
bswap_32(ftemp_ddata);
#endif
#ifdef use_template_to_swap
tbswap(ftemp_ddata);
#endif
ofs.write(static_cast<char *> (static_cast<void *>(&ftemp_ddata)), sizeof( float));
return 1;
}
double TSData::time( const unsigned int sampleno,
const int i_relative_time, const long time_offset, const string dateformat,
string& dateresult, double extra_shift_sec) {
if (i_relative_time) {
return double(skip_samples_read + sampleno )/samplefreq + extra_shift_sec;
}
else {
if (dateformat == "ISO") dateresult = GMTISOtime(datetime + time_offset, sampleno, samplefreq, extra_shift_sec);
return double(datetime + time_offset) + extra_shift_sec + double(sampleno) /samplefreq;
}
}
/*!
write parts of the file
if apply lsb is activated the double represents then the integer of
the origina�digital time series
if time col is 0, only data is written *
*/
int TSData::write_ascii(ofstream& ofs, int i_time_col, int i_relative_time,
long time_offset, string dateformat, int i_app_lsb, string& ident, double extra_shift_sec) {
// test for output
if (!ofs) {
cerr << "\natsdata::write_ascii -> can not write to ofstream";
exit(0);
}
ofs.setf(ios::scientific, ios::floatfield);
ofs.precision(12);
// include function header data into object
size_t i, j = 0;
double temp = 1.;
if (i_app_lsb) temp = lsbval;
if (i_time_col) {
if (i_relative_time) {
if (ident == "data") {
for ( i = 0; i < this->samples; i++) {
ofs << double(skip_samples_read + i)/samplefreq << "\x9"
<< ddata[i] / temp << endl;
}
cerr << "TSData::write_ascii -> time series data written " << endl;
}
if (ident == "steps") {
for ( i = 0; i < steps.size(); i++) {
ofs << double(skip_samples_read + steps[i])/samplefreq << "\x9"
<< step_vals[i] / temp << endl;
}
cerr << "TSData::write_ascii -> index of steps written" << endl;
}
if (ident == "spikes") {
for ( i = 0; i < spikes.size(); i++) {
ofs << double(skip_samples_read + spikes[i])/samplefreq << "\x9"
<< spike_vals[i] / temp << endl;
}
cerr << "TSData::write_ascii -> index of spikes written " << endl;
}
if (ident == "stddev") {
for ( i = 0; i < posv.size(); i++) {
ofs << double(skip_samples_read + posv[i])/samplefreq << "\x9"
<< stddevs[i] / temp << endl;
}
cerr << "TSData::write_ascii -> index of standard devations written " << endl;
}
if (ident == "stddev_used") {
if (use_min_std_f == DBL_MAX || use_max_std_f == DBL_MAX) {
cerr << "TSData::write_ascii -> can not write " << ident << endl;
cerr << "min max factors were: " << use_min_std_f << " " << use_max_std_f << endl;
return 0;
}
for ( i = 0; i < posv.size(); i++) {
if ( (stddevs[i] > use_min_std_f * my_stddev_stddev + my_stddev_median) &&
(stddevs[i] < use_max_std_f * my_stddev_stddev + my_stddev_median)) {
ofs << double(skip_samples_read + posv[i])/samplefreq << "\x9"
<< stddevs[i] / temp << endl;
}
}
cerr << "TSData::write_ascii -> index of standard devations for USE written " << endl;
}
}
// absoulte time and date
else {
cerr << "TSData::write_ascii -> offset is date + offset: " << datetime << " + " << time_offset << endl;
long newtime = datetime + time_offset;
cerr << "TSData::write_ascii -> approx! offsetts are: original, shift: " << endl;
cerr << GMTtime(datetime);
cerr << GMTtime(newtime) << "( not evaluated iso_s: " << extra_shift_sec << " )" <<endl;
if (dateformat == "ISO") {
cerr << "TSData::write_ascii -> using ISO 8601 date format " << endl;
if (ident == "data") {
for ( i = 0; i < this->samples; i++) {
ofs << GMTISOtime(datetime, j++, samplefreq, extra_shift_sec) << "\x9"
<< ddata[i] / temp << endl;
}
cerr << "TSData::write_ascii -> time series data written " << endl;
}
if (ident == "steps") {
for ( i = 0; i < steps.size(); i++) {
ofs << GMTISOtime(datetime, steps[i], samplefreq, extra_shift_sec) << "\x9"
<< step_vals[i] / temp << endl;
}
cerr << "TSData::write_ascii -> index of steps written" << endl;
}
if (ident == "spikes") {
for ( i = 0; i < spikes.size(); i++) {
ofs << GMTISOtime(datetime, spikes[i], samplefreq, extra_shift_sec) << "\x9"
<< spike_vals[i] / temp << endl;
}
cerr << "TSData::write_ascii -> index of spikes written " << endl;
}
if (ident == "stddev") {
for ( i = 0; i < posv.size(); i++) {
ofs << GMTISOtime(datetime, posv[i], samplefreq, extra_shift_sec) << "\x9"
<< stddevs[i] / temp << endl;
}
cerr << "TSData::write_ascii -> index of standard devations written " << endl;
}
if (ident == "stddev_used") {
if (use_min_std_f == DBL_MAX || use_max_std_f == DBL_MAX) {
cerr << "TSData::write_ascii -> can not write " << ident << endl;
cerr << "min max factors were: " << use_min_std_f << " " << use_max_std_f << endl;
return 0;
}
for ( i = 0; i < posv.size(); i++) {
if ( (stddevs[i] > use_min_std_f * my_stddev_stddev + my_stddev_median) &&
(stddevs[i] < use_max_std_f * my_stddev_stddev + my_stddev_median)) {
ofs << GMTISOtime(datetime, posv[i], samplefreq, extra_shift_sec) << "\x9"
<< stddevs[i] / temp << endl;
}
}
cerr << "TSData::write_ascii -> index of standard devations for USE written " << endl;
}
}
else {
cerr << "TSData::write_ascii -> UNIX time_t + sample/sample_freq date format " << endl;
if (ident == "data") {
for ( i = 0; i < this->samples; i++) {
// cout.setf(ios::scientific, ios::floatfield);
// cout.precision(12);