casacore::LatticeStatsBase Class Reference

Base class for LatticeStatistics class. More...

#include <LatticeStatsBase.h>

Inheritance diagram for casacore::LatticeStatsBase:

Public Types
enum	StatisticsTypes {   NPTS,   SUM,   SUMSQ,   MEDIAN,   MEDABSDEVMED,   QUARTILE,   Q1,   Q3,   MIN,   MAX,   MEAN,   VARIANCE,   SIGMA,   RMS,   FLUX,   NSTATS,   NACCUM }
	This enum StatisticTypes is provided for use with the LatticeStatistics<T>::setPlotting function. More...

Static Public Member Functions
static Vector< Int >	toStatisticTypes (const String &statistics, const Regex &delimiter)
	Helper function to convert a String containing a list of desired statistics to the correct Vector<Int> required for the LatticeStatistics<T>::setPlotting function. More...
static Vector< Int >	toStatisticTypes (const Vector< String > &statistics)
static String	toStatisticName (StatisticsTypes type)
	Convert type to string. More...
static String	toStatisticName (Int type)
static Int	toStatisticType (const String &statistic)
	Returns -1 if the statistic string is not valid. More...
static Bool	setNxy (Vector< Int > &nxy, ostream &os)
	Check and fill in defaults for a Vector<Int> containing the number of subplots in x and y to be put on a plot. More...
static void	setStorageImageShape (IPosition &storeImageShape, const Bool &last, const Int &axisSize, const Vector< Int > &displayAxes, const IPosition &shape)
	A storage image is used to accumulate information as a function of the display axes as an image is iterated through. More...
static void	stretchMinMax (Float &min, Float &max)
	Stretch a range by 10%. More...
static std::set< Double >	quartileFracs ()

Detailed Description

Base class for LatticeStatistics class.

Intended use:

Public interface

Review Status

Date Reviewed:

yyyy/mm/dd

Prerequisite

• Vector
• String

Etymology

A simple base class for the LatticeStatistics class

Synopsis

This base class provides an enum defining allowed statistics types and a helper function to convert between a String and a Vector<Int> describing the desired statistics to plot. The reason for having it as a base class rather than just part of LatticeStatistics is that the latter is templated, and it doesn't make much sense to invoke the static function setStatisticTypes function with a templated type.

Example

Vector<Int> statsToPlot = LatticeStatsBase::toStatisticTypes("mean,rms,sigma");

Definition at line 76 of file LatticeStatsBase.h.

Member Enumeration Documentation

enum casacore::LatticeStatsBase::StatisticsTypes

This enum StatisticTypes is provided for use with the LatticeStatistics<T>::setPlotting function.

It gives the allowed statistics types that you can ask for.

Enumerator
NPTS	The number of points.
SUM	The sum.
SUMSQ	The sum squared.
MEDIAN	The median - the robust stats does not fit well into storage lattice approach.
MEDABSDEVMED	median of absolute deviation from median
QUARTILE	inter-quartile range
Q1	The first and third quartiles.
Q3
MIN	The minimum.
MAX	The maximum.
MEAN	The mean.
VARIANCE	The variance about the mean.
SIGMA	The standard deviation about the mean.
RMS	The rms.
FLUX	The flux density (can't always compute this - needs the beam)
NSTATS	The total number of available statistics to plot.
NACCUM	The total number of accumulation image items (not for general use: note that the accumulation items MUST come first in this enum) dmehring changed from VARIANCE+1 to SIGMA+1 because the standard deviation should be stored rather than taking the square root of the same value multiple times. Not to mention the biweight algorithm does not compute the variance, so that the standard deviation must be explicitly stored for it.

Definition at line 84 of file LatticeStatsBase.h.

Member Function Documentation

static std::set<Double> casacore::LatticeStatsBase::quartileFracs ( )

static

static Bool casacore::LatticeStatsBase::setNxy ( Vector< Int > &  nxy, ostream &  os  )

static

Check and fill in defaults for a Vector<Int> containing the number of subplots in x and y to be put on a plot.

The Vector<Int> is resized to 2 before assignment. A return value of False indicates invalid arguments.

static void casacore::LatticeStatsBase::setStorageImageShape ( IPosition &  storeImageShape, const Bool &  last, const Int &  axisSize, const Vector< Int > &  displayAxes, const IPosition &  shape  )

static

A storage image is used to accumulate information as a function of the display axes as an image is iterated through.

This function sets the storage image shape to that appropriate to the shape of the display axes and the desired size of the first or last dimension.

static void casacore::LatticeStatsBase::stretchMinMax ( Float &  min, Float &  max  )

static

Stretch a range by 10%.

static String casacore::LatticeStatsBase::toStatisticName ( StatisticsTypes  type )

static

Convert type to string.

static String casacore::LatticeStatsBase::toStatisticName ( Int  type )

static

static Int casacore::LatticeStatsBase::toStatisticType ( const String &  statistic )

static

Returns -1 if the statistic string is not valid.

static Vector<Int> casacore::LatticeStatsBase::toStatisticTypes ( const String &  statistics, const Regex &  delimiter  )

static

Helper function to convert a String containing a list of desired statistics to the correct Vector<Int> required for the LatticeStatistics<T>::setPlotting function.

This may be usful if your user interface involves strings rather than integers. A new value is added to the output vector (which is resized appropriately) if any of the substrings "npts", "min", "max", "sum", "sumsq", "mean", "sigma", "rms", and "flux" is present. An empty vector results if there are no matches

static Vector<Int> casacore::LatticeStatsBase::toStatisticTypes ( const Vector< String > &  statistics )

static

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The documentation for this class was generated from the following file:

• casa/casacore/lattices/LatticeMath/LatticeStatsBase.h