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  2. pandas (software) - Wikipedia

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

    [4]: 114 A DataFrame is a 2-dimensional data structure of rows and columns, similar to a spreadsheet, and analogous to a Python dictionary mapping column names (keys) to Series (values), with each Series sharing an index. [4]: 115 DataFrames can be concatenated together or "merged" on columns or indices in a manner similar to joins in SQL.

  3. Row and column vectors - Wikipedia

    en.wikipedia.org/wiki/Row_and_column_vectors

    The transpose (indicated by T) of any row vector is a column vector, and the transpose of any column vector is a row vector: […] = [] and [] = […]. The set of all row vectors with n entries in a given field (such as the real numbers ) forms an n -dimensional vector space ; similarly, the set of all column vectors with m entries forms an m ...

  4. Array slicing - Wikipedia

    en.wikipedia.org/wiki/Array_slicing

    In computer programming, array slicing is an operation that extracts a subset of elements from an array and packages them as another array, possibly in a different dimension from the original.

  5. Row- and column-major order - Wikipedia

    en.wikipedia.org/wiki/Row-_and_column-major_order

    To use column-major order in a row-major environment, or vice versa, for whatever reason, one workaround is to assign non-conventional roles to the indexes (using the first index for the column and the second index for the row), and another is to bypass language syntax by explicitly computing positions in a one-dimensional array.

  6. I've been to all 63 US national parks. Here's how I'd rank ...

    www.aol.com/ive-63-us-national-parks-132301532.html

    After visiting all of Utah's "Mighty 5" national parks, I ranked them based on things like overall beauty, accessibility, and photo opportunities.

  7. Data Matrix - Wikipedia

    en.wikipedia.org/wiki/Data_Matrix

    A Data Matrix on a Mini PCI card, encoding the serial number 15C06E115AZC72983004. The most popular application for Data Matrix is marking small items, due to the code's ability to encode fifty characters in a symbol that is readable at 2 or 3 mm 2 (0.003 or 0.005 sq in) and the fact that the code can be read with only a 20% contrast ratio. [1]

  8. The 5 Handbag Trends to Update Your Look for 2025 - AOL

    www.aol.com/5-handbag-trends-look-2025-150000235...

    Seen on the runways of Max Mara, Louis Vuitton, and Christian Dior, the fanny pack—once considered solely functional for hands-free convenience—has transformed itself into a signifier of style ...

  9. CFPB sues Experian over "sham investigations" into consumer ...

    www.aol.com/cfpb-sues-experian-over-sham...

    Experian does not properly investigate consumer complaints of errors in credit reports, threatening their access to credit, employment and housing, the Consumer Financial Protection Bureau said ...