histogram

package
v2.4.2 Latest Latest
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 Go to latest Published: Apr 13, 2022 License: MIT Imports: 18 Imported by: 11

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Constants

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const (
	SortNameAsc   = maputil.SortNameAsc
	SortNameDesc  = maputil.SortNameDesc
	SortValueAsc  = maputil.SortValueAsc
	SortValueDesc = maputil.SortValueDesc
)

Variables

This section is empty.

Functions

This section is empty.

Types

type Histogram 

type Histogram struct {
	Name        string
	Bins        map[string]int
	Counts      map[string]int // how many items have counts.
	Percentages map[string]float64
	BinCount    uint
	Sum         int
}

Histogram stats is used to count how many times an item appears and how many times number of appearances appear.

func NewHistogram 

func NewHistogram(name string) *Histogram

func ParseFileCSV 

func ParseFileCSV(file string, name string, binNameColIdx, binFrequencyColIdx uint) (*Histogram, error)

ParseFileCSV reads a CSV using default settings of `,` separator, header row and BOM to be stripped. If you have other configurations, use `table.ReadFile()` directly and call `HistogramFromTable()`.

func ParseTable 

func ParseTable(tbl table.Table, binNameColIdx, binFrequencyColIdx uint) (*Histogram, error)

ParseTable parses a `table.Table` to a `Histogram` given a table, binName column index and binFrequency column index. Empty rows are skipped.

func (*Histogram) Add 

func (hist *Histogram) Add(binName string, binCount int)

func (*Histogram) BinNameExists 

func (hist *Histogram) BinNameExists(binName string) bool

func (*Histogram) BinNames 

func (hist *Histogram) BinNames() []string

func (*Histogram) Inflate 

func (hist *Histogram) Inflate()

func (*Histogram) ItemCounts 

func (hist *Histogram) ItemCounts(sortBy string) []maputil.Record

ItemCounts returns sorted item names and values.

func (*Histogram) Stats 

func (hist *Histogram) Stats() point.PointSet

func (*Histogram) Table 

func (hist *Histogram) Table(colNameBinName, colNameBinCount string) *table.Table

func (*Histogram) TransformBinNames 

func (hist *Histogram) TransformBinNames(xfFunc func(input string) string) *Histogram

TransformBinNames modifies bin names and returns a new histogram.

func (*Histogram) TransformBinNamesMap 

func (hist *Histogram) TransformBinNamesMap(xfMap map[string]string, matchType string) *Histogram

TransformBinNamesMap modifies bin names and returns a new histogram. `matchType` can be set to `prefix` to match name prefixes instead of exact match.

func (*Histogram) ValueSum 

func (hist *Histogram) ValueSum() int

func (*Histogram) WriteTableASCII 

func (hist *Histogram) WriteTableASCII(writer io.Writer, header []string, sortBy string, inclTotal bool)

WriteTable writes an ASCII Table. For CLI apps, pass `os.Stdout` for `io.Writer`.

func (*Histogram) WriteXLSX 

func (hist *Histogram) WriteXLSX(filename, sheetname, colNameBinName, colNameBinCount string) error

type HistogramSet 

type HistogramSet struct {
	Name         string
	HistogramMap map[string]*Histogram
	KeyIsTime    bool
}

func NewHistogramSet 

func NewHistogramSet(name string) *HistogramSet

func NewHistogramSetWithData 

func NewHistogramSetWithData(name string, data map[string]map[string]int) *HistogramSet

func (*HistogramSet) Add 

func (hset *HistogramSet) Add(histName, binName string, binCount int)

Add provides an easy method to add a histogram bin name and count for an existing or new histogram in the set.

func (*HistogramSet) AddDateUIDCount 

func (hset *HistogramSet) AddDateUIDCount(dt time.Time, uid string, count int)

func (*HistogramSet) BinNameExists 

func (hset *HistogramSet) BinNameExists(binName string) bool

BinNameExists returns a boolean indicating if a bin name exists in any histogram.

func (*HistogramSet) BinNames 

func (hset *HistogramSet) BinNames() []string

BinNames returns all the bin names used across all the histograms.

func (*HistogramSet) DatetimeKeyCount 

func (hset *HistogramSet) DatetimeKeyCount() (timeseries.TimeSeries, error)

DatetimeKeyCount returns a TimeSeries when the first key is a RFC3339 time and a sum of items is desired per time.

func (*HistogramSet) DatetimeKeyCountTable 

func (hset *HistogramSet) DatetimeKeyCountTable(interval timeutil.Interval, countColName string) (table.Table, error)

func (*HistogramSet) DatetimeKeyToQuarter 

func (hset *HistogramSet) DatetimeKeyToQuarter(name string) (*HistogramSet, error)

DatetimeKeyToQuarter converts a HistogramSet by date to one by quarters.

func (*HistogramSet) HistogramBinNames 

func (hset *HistogramSet) HistogramBinNames(setName string) []string

HistogramBinNames returns the bin names for a single histogram whose name is provided as a function parameter.

func (*HistogramSet) HistogramNameExists 

func (hset *HistogramSet) HistogramNameExists(histName string) bool

HistogramNameExists returns a boolean indicating if the supplied histogram name exists.

func (*HistogramSet) HistogramNames 

func (hset *HistogramSet) HistogramNames() []string

HistogramNames returns the number of histograms.

func (*HistogramSet) HistogramSetTimeKeyCountWriteXLSX 

func (hset *HistogramSet) HistogramSetTimeKeyCountWriteXLSX(filename string, interval timeutil.Interval, countColName string) error

func (*HistogramSet) ItemCount 

func (hset *HistogramSet) ItemCount() uint

ItemCount returns the number of histograms.

func (*HistogramSet) ItemCounts 

func (hset *HistogramSet) ItemCounts() *Histogram

ItemCounts returns the number of histograms.

func (*HistogramSet) ItemNames 

func (hset *HistogramSet) ItemNames() []string

ItemNames returns the number of histograms. Alias for `HistogramNames()`.

func (*HistogramSet) LeafStats 

func (hset *HistogramSet) LeafStats(name string) *Histogram

LeafStats returns a histogram by combining the histogram bins across histograms, removing the histogram distinction.

func (*HistogramSet) TableMatrix 

func (hset *HistogramSet) TableMatrix(tableName, histColName string) (*table.Table, error)

TableMatrix returns a `*table.Table` where the first column is the histogram name and the other columns are the bin names. This is useful for easy visualization of a table and also creating charts such as grouped bar charts.

func (*HistogramSet) ToTimeSeriesDistinct 

func (hset *HistogramSet) ToTimeSeriesDistinct() (timeseries.TimeSeries, error)

func (*HistogramSet) TransformHistogramNames 

func (hset *HistogramSet) TransformHistogramNames(xfFunc func(input string) string) *HistogramSet

TransformHistogramNames modifies histogram names and returns a new histogram set.

func (*HistogramSet) TransformHistogramNamesMap 

func (hset *HistogramSet) TransformHistogramNamesMap(xfMap map[string]string, matchType string) *HistogramSet

TransformHistogramNamesMap modifies bin names and returns a new `HistogramSet`. `matchType` can be set to `prefix` to match name prefixes instead of exact match.

func (*HistogramSet) ValueSum 

func (hset *HistogramSet) ValueSum() int

ValueSum returns the sum of all the histogram bin values.

func (*HistogramSet) WriteXLSX 

func (hset *HistogramSet) WriteXLSX(filename, sheetName, colName1, colName2, colNameCount string) error

WriteXLSX creates an XLSX file where the first column is the histogram name, the second column is the bin name and the third column is the bin count.

func (*HistogramSet) WriteXLSXMatrix 

func (hset *HistogramSet) WriteXLSXMatrix(filename, sheetName, histColName string) error

WriteXLSXMatrix creates an XLSX file where the first column is the histogram name and the other columns are the bin names. This is useful for easy visualization of a table and also creating charts such as grouped bar charts.

type HistogramSetMetadata 

type HistogramSetMetadata struct {
	Names          []string `json:"names,omitempty"`
	NameCount      int      `json:"nameCount,omitempty"`
	UniqueBinCount int      `json:"uniqueBinCount,omitempty"`
}

func NewHistogramSetMetadata 

func NewHistogramSetMetadata(histSet *HistogramSet) *HistogramSetMetadata

type HistogramSets 

type HistogramSets struct {
	Name            string
	HistogramSetMap map[string]*HistogramSet
}

func NewHistogramSets 

func NewHistogramSets(name string) *HistogramSets

func NewHistogramSetsCSVs 

func NewHistogramSetsCSVs(filenames []string, key1ColIdx, key2ColIdx, uidColIdx uint) (*HistogramSets, table.Table, error)

NewHistogramSetsCSVs expects multiple files to have same columns.

func NewHistogramSetsTable 

func NewHistogramSetsTable(tbl table.Table, key1ColIdx, key2ColIdx, uidColIdx uint) (*HistogramSets, error)

func (*HistogramSets) Add 

func (hsets *HistogramSets) Add(hsetName, histName, binName string, binCount int, trimSpace bool)

func (*HistogramSets) BinNames 

func (hsets *HistogramSets) BinNames() []string

func (*HistogramSets) Counts 

func (hsets *HistogramSets) Counts() *HistogramSetsCounts

func (*HistogramSets) Flatten 

func (hsets *HistogramSets) Flatten(name string) *HistogramSet

func (*HistogramSets) ItemCount 

func (hsets *HistogramSets) ItemCount() uint

ItemCount returns the number of histogram sets.

func (*HistogramSets) Table 

func (hsets *HistogramSets) Table(tableName, colNameHSet, colNameHist, colNameBinName, colNameBinCount string) table.Table

func (*HistogramSets) TableMatrix 

func (hsets *HistogramSets) TableMatrix(tableName, colNameHSet, colNameHist, colNameBinNamePrefix, colNameBinNameSuffix string) table.Table

TableMatrix returns a `*table.Table` where the first column is the histogram set name, the second column is the histogram name and the other columns are the bin names.

func (*HistogramSets) Visit 

func (hsets *HistogramSets) Visit(visit func(hsetName, histName, binName string, binCount int))

func (*HistogramSets) WriteXLSX 

func (hsets *HistogramSets) WriteXLSX(filename, sheetname, colNameHSet, colNameHist, colNameBinName, colNameBinCount string) error

func (*HistogramSets) WriteXLSXMatrix 

func (hsets *HistogramSets) WriteXLSXMatrix(filename, sheetname, colNameHSet, colNameHist, colNameBinNamePrefix, colNameBinNameSuffix string) error

type HistogramSetsCounts 

type HistogramSetsCounts struct {
	UIDCounts     map[string]map[string]uint
	UIDCountsKey1 map[string]uint
	UIDCountsKey2 map[string]uint
	Key1Names     []string
	Key2Names     []string
}

HistogramSetsCounts returns UID counts. When used with NewHistogramSetsCSV(), it can provide a sanity check for raw record counts against aggregate query values, e.g. compare counts of raw records to GROUP BY counts.

func NewHistogramSetsCounts 

func NewHistogramSetsCounts(hsets HistogramSets) *HistogramSetsCounts

func (*HistogramSetsCounts) Inflate 

func (hcounts *HistogramSetsCounts) Inflate()

Source Files

View all Source files

Directories

Path Synopsis
examples
histogram_set_stats

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