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  2. pandas (software) - Wikipedia

    en.wikipedia.org/wiki/Pandas_(software)

    However, if data is a DataFrame, then data['a'] returns all values in the column(s) named a. To avoid this ambiguity, Pandas supports the syntax data.loc['a'] as an alternative way to filter using the index. Pandas also supports the syntax data.iloc[n], which always takes an integer n and returns the nth value, counting from 0. This allows a ...

  3. Wide and narrow data - Wikipedia

    en.wikipedia.org/wiki/Wide_and_narrow_data

    The pandas package in Python implements this operation as "melt" function which converts a wide table to a narrow one. The process of converting a narrow table to wide table is generally referred to as "pivoting" in the context of data transformations.

  4. Table (database) - Wikipedia

    en.wikipedia.org/wiki/Table_(database)

    External tables (in Informix [3] or Oracle, [4] [5] for example) can also be thought of as views. In many systems for computational statistics, such as R and Python's pandas, a data frame or data table is a data type supporting the table abstraction. Conceptually, it is a list of records or observations all containing

  5. Category:Wikipedia table of contents templates - Wikipedia

    en.wikipedia.org/wiki/Category:Wikipedia_table...

    [[Category:Wikipedia table of contents templates]] to the <includeonly> section at the bottom of that page. Otherwise, add <noinclude>[[Category:Wikipedia table of contents templates]]</noinclude> to the end of the template code, making sure it starts on the same line as the code's last character.

  6. Template:Contents topic list - Wikipedia

    en.wikipedia.org/wiki/Template:Contents_topic_list

    This template takes one parameter, |1=, the list to format. This parameter should consisted on a multi-level standard MediaWiki list of *'s. All top-level items without an * are implicitly a part of a top-level list.

  7. Table of contents - Wikipedia

    en.wikipedia.org/wiki/Table_of_contents

    A table of contents from a book about cats with descriptive text. A table of contents, usually headed simply Contents and abbreviated informally as TOC, is a list, usually found on a page before the start of a written work, of its chapter or section titles or brief descriptions with their commencing page numbers.

  8. List of datasets in computer vision and image processing

    en.wikipedia.org/wiki/List_of_datasets_in...

    Randomly sampled color values from face images. B, G, R, values extracted. 245,057 Text Segmentation, classification 2012 [103] [104] R. Bhatt. Bosphorus 3D Face image database. 34 action units and 6 expressions labeled; 24 facial landmarks labeled. 4652 Images, text Face recognition, classification 2008 [105] [106] A Savran et al. UOY 3D-Face

  9. Wikipedia : Categories, lists, and navigation templates

    en.wikipedia.org/wiki/Wikipedia:Categories...

    For example, List of compositions by Franz Schubert, or, if appropriate, red links. See WP:Write the article first. List items can be manually sorted using a variety of methods. An article can appear several times or in different ways in the same list. List items can be linked to specific sections of articles.