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  2. Pivot table - Wikipedia

    en.wikipedia.org/wiki/Pivot_table

    Python data analysis toolkit pandas has the function pivot_table [16] and the xs method useful to obtain sections of pivot tables. [ citation needed ] R has the Tidyverse metapackage, which contains a collection of tools providing pivot table functionality, [ 17 ] [ 18 ] as well as the pivottabler package.

  3. Error bar - Wikipedia

    en.wikipedia.org/wiki/Error_bar

    A bar chart with confidence ... and so the measure selected should be stated explicitly in the graph or supporting text. ... the function describes the data.

  4. Lift (data mining) - Wikipedia

    en.wikipedia.org/wiki/Lift_(data_mining)

    because these are simply the most common patterns found in the data. A simple review of the above table should make these rules obvious. The support for Rule 1 is 3/7 because that is the number of items in the dataset in which the antecedent is A and the consequent 0. The support for Rule 2 is 2/7 because two of the seven records meet the ...

  5. Logistic regression - Wikipedia

    en.wikipedia.org/wiki/Logistic_regression

    Logistic regression is used in various fields, including machine learning, most medical fields, and social sciences. For example, the Trauma and Injury Severity Score (), which is widely used to predict mortality in injured patients, was originally developed by Boyd et al. using logistic regression. [6]

  6. Help:Table - Wikipedia

    en.wikipedia.org/wiki/Help:Table

    Note that with row headers you need to use a separate row in the wikitext for the row header cell. Here below is what a table looks like if the data cell wikitext is on the same line as the row header wikitext. Note that the data cell text is bolded, and the data cell backgrounds are the same shade of gray as the column and row headers.

  7. Data analysis - Wikipedia

    en.wikipedia.org/wiki/Data_analysis

    Data analysis is a process for obtaining raw data, and subsequently converting it into information useful for decision-making by users. [1] Data is collected and analyzed to answer questions, test hypotheses, or disprove theories. [11] Statistician John Tukey, defined data analysis in 1961, as:

  8. Intraclass correlation - Wikipedia

    en.wikipedia.org/wiki/Intraclass_correlation

    While it is viewed as a type of correlation, unlike most other correlation measures, it operates on data structured as groups rather than data structured as paired observations. A dot plot showing a dataset with high intraclass correlation. Values from the same group tend to be similar. A dot plot showing a dataset with low intraclass ...

  9. Interquartile range - Wikipedia

    en.wikipedia.org/wiki/Interquartile_range

    Boxplot (with an interquartile range) and a probability density function (pdf) of a Normal N(0,σ 2) Population. In descriptive statistics, the interquartile range (IQR) is a measure of statistical dispersion, which is the spread of the data. [1] The IQR may also be called the midspread, middle 50%, fourth spread, or H‑spread.