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Class: Stats

dg.Stats

Represents basic descriptive statistics calculated for a {Column}. See samples: https://public.datagrok.ai/js/samples/data-frame/stats

Constructors​

constructor​

• new Stats(dart)

Parameters​

NameType
dartany

Defined in​

src/dataframe.ts:1785

Properties​

dart​

• Private Readonly dart: any

Defined in​

src/dataframe.ts:1783

Accessors​

avg​

• get avg(): number

Returns​

number

  • average

Defined in​

src/dataframe.ts:1838

kurt​

• get kurt(): number

Returns​

number

  • kurtosis

Defined in​

src/dataframe.ts:1858

max​

• get max(): number

Returns​

number

  • maximum

Defined in​

src/dataframe.ts:1828

med​

• get med(): number

Returns​

number

  • median value

Defined in​

src/dataframe.ts:1863

min​

• get min(): number

Returns​

number

  • minimum

Defined in​

src/dataframe.ts:1823

missingValueCount​

• get missingValueCount(): number

Number of missing (empty) values.

Returns​

number

Defined in​

src/dataframe.ts:1808

q1​

• get q1(): number

Returns​

number

  • first quartile

Defined in​

src/dataframe.ts:1868

q2​

• get q2(): number

Returns​

number

  • second quartile

Defined in​

src/dataframe.ts:1873

q3​

• get q3(): number

Returns​

number

  • third quartile

Defined in​

src/dataframe.ts:1878

skew​

• get skew(): number

Returns​

number

  • skewness

Defined in​

src/dataframe.ts:1853

stdev​

• get stdev(): number

Returns​

number

  • standard deviation

Defined in​

src/dataframe.ts:1843

sum​

• get sum(): number

Returns​

number

  • sum

Defined in​

src/dataframe.ts:1833

totalCount​

• get totalCount(): number

Total number of values (including missing values).

Returns​

number

Defined in​

src/dataframe.ts:1803

uniqueCount​

• get uniqueCount(): number

Number of unique values.

Returns​

number

Defined in​

src/dataframe.ts:1813

valueCount​

• get valueCount(): number

Number of non-empty values.

Returns​

number

Defined in​

src/dataframe.ts:1818

variance​

• get variance(): number

Returns​

number

  • variance

Defined in​

src/dataframe.ts:1848

Methods​

corr​

▸ corr(otherColumn): number

Pearson correlation

Parameters​

NameType
otherColumnColumn<any>

Returns​

number

Defined in​

src/dataframe.ts:1885

spearmanCorr​

▸ spearmanCorr(otherColumn): number

Spearman correlation

Parameters​

NameType
otherColumnColumn<any>

Returns​

number

Defined in​

src/dataframe.ts:1890

toString​

▸ toString(): string

Returns​

string

Defined in​

src/dataframe.ts:1898

fromColumn​

▸ Static fromColumn(col, mask?): Stats

Calculates statistics for the specified column.

Parameters​

NameTypeDefault value
colColumn<any>undefined
masknull | BitSetnull

Returns​

Stats

Defined in​

src/dataframe.ts:1793

fromValues​

▸ Static fromValues(values): Stats

Calculates statistics for the array of values.

Parameters​

NameType
valuesnumber[] | Int8Array | Int16Array | Int32Array | Float32Array | Float64Array

Returns​

Stats

Defined in​

src/dataframe.ts:1798

histogramsByCategories​

▸ Static histogramsByCategories(valueColumn, catColumn): Int32Array[]

Returns distributions of [valueColumn] for each category in [catColumn].

Parameters​

NameType
valueColumnColumn<any>
catColumnColumn<any>

Returns​

Int32Array[]

Defined in​

src/dataframe.ts:1893