Reset the contents of an already existing Db

Functions
int	Db::resetFromSamples (int nech, const ELoadBy &order=ELoadBy::fromKey("SAMPLE"), const VectorDouble &tab=VectorDouble(), const VectorString &names=VectorString(), const VectorString &locatorNames=VectorString(), bool flagAddSampleRank=true)
int	Db::resetFromCSV (const String &filename, bool verbose, const CSVformat &csvfmt, int ncol_max=-1, int nrow_max=-1, bool flagAddSampleRank=true)
int	Db::resetFromBox (int nech, const VectorDouble &coormin, const VectorDouble &coormax, int ndim=2, double extend=0., int seed=321415, bool flagAddSampleRank=true)
int	Db::resetFromOnePoint (const VectorDouble &tab=VectorDouble(), bool flagAddSampleRank=true)
int	Db::resetSamplingDb (const Db *dbin, double proportion=0, int number=0, const VectorString &names=VectorString(), int seed=23241, bool verbose=false, bool flagAddSampleRank=true)
int	Db::resetReduce (const Db *dbin, const VectorString &names=VectorString(), const VectorInt &ranks=VectorInt(), bool verbose=false)

Detailed Description

All methods enabling to Reset the contents of an already existing Db.

They clean the initial contents and replace it by the new one.

Function Documentation

resetFromBox()

int Db::resetFromBox	(	int	nech,
		const VectorDouble &	coormin,
		const VectorDouble &	coormax,
		int	ndim = 2,
		double	extend = 0.,
		int	seed = 321415,
		bool	flagAddSampleRank = true
	)

Create a Db generating samples randomly

Parameters

nech	Number of samples to be generated
coormin	Vector giving the smallest values of the coordinates
coormax	Vector giving the largest values for the coordinates
ndim	Space dimension (used if 'coormin' and 'coormax' are empty)
extend	Extension of the bounding box (if positive)
seed	Seed for the random number generator
flagAddSampleRank	true if the Sample ranks must be generated

resetFromCSV()

int Db::resetFromCSV	(	const String &	filename,
		bool	verbose,
		const CSVformat &	csvfmt,
		int	ncol_max = -1,
		int	nrow_max = -1,
		bool	flagAddSampleRank = true
	)

Creating a Db by reading a CSV file

Parameters

filename	Name of the CSV file
verbose	Verbose flag
csvfmt	Description of the CSV format
ncol_max	Maximum number of columns
nrow_max	Maximum number of rows
flagAddSampleRank	true if the sample rank must be generated

resetFromOnePoint()

int Db::resetFromOnePoint	(	const VectorDouble &	tab = VectorDouble(),
		bool	flagAddSampleRank = true
	)

Create a Db from a single sample whose coordinates are provided in 'tab'

Parameters

tab	Array containing the coordinates of the single sample
flagAddSampleRank	true if the Sample ranks must be generated

resetFromSamples()

int Db::resetFromSamples	(	int	nech,
		const ELoadBy &	order = ELoadBy::fromKey("SAMPLE"),
		const VectorDouble &	tab = VectorDouble(),
		const VectorString &	names = VectorString(),
		const VectorString &	locatorNames = VectorString(),
		bool	flagAddSampleRank = true
	)

resetReduce()

int Db::resetReduce	(	const Db *	dbin,
		const VectorString &	names = VectorString(),
		const VectorInt &	ranks = VectorInt(),
		bool	verbose = false
	)

resetSamplingDb()

int Db::resetSamplingDb	(	const Db *	dbin,
		double	proportion = 0,
		int	number = 0,
		const VectorString &	names = VectorString(),
		int	seed = 23241,
		bool	verbose = false,
		bool	flagAddSampleRank = true
	)

Sampling an input Db to create the output Db by selecting a subset of samples

Parameters

dbin	Pointer to the input Db
proportion	Proportion of samples to be retained
number	Number of samples to be retained
names	Vector of Names to be copied (empty: all names)
seed	Seed used for the random number generator
verbose	Verbose flag
flagAddSampleRank	true if the sample rank must be generated

Remarks

A possible selection in 'dbin' will not be taken into account

You can use either 'proportion' or 'number'