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  2. pandas (software) - Wikipedia

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

    [4]: 112 Series can be used arithmetically, as in the statement series_3 = series_1 + series_2: this will align data points with corresponding index values in series_1 and series_2, then add them together to produce new values in series_3. [4]: 114 A DataFrame is a 2-dimensional data structure of rows and columns, similar to a spreadsheet, and ...

  3. Map (higher-order function) - Wikipedia

    en.wikipedia.org/wiki/Map_(higher-order_function)

    Therefore, compilers will attempt to transform the first form into the second; this type of optimization is known as map fusion and is the functional analog of loop fusion. [2] Map functions can be and often are defined in terms of a fold such as foldr, which means one can do a map-fold fusion: foldr f z . map g is equivalent to foldr (f .

  4. Data structure alignment - Wikipedia

    en.wikipedia.org/wiki/Data_structure_alignment

    A block of data of size 2 (n+1) − 1 always has one sub-block of size 2 n aligned on 2 n bytes. This is how a dynamic allocator that has no knowledge of alignment, can be used to provide aligned buffers, at the price of a factor two in space loss.

  5. Java syntax - Wikipedia

    en.wikipedia.org/wiki/Java_syntax

    A snippet of Java code with keywords highlighted in bold blue font. The syntax of Java is the set of rules defining how a Java program is written and interpreted.. The syntax is mostly derived from C and C++.

  6. Nickel defense - Wikipedia

    en.wikipedia.org/wiki/Nickel_defense

    The Texas A&M–Commerce Lions in a nickel defense against the Adams State Grizzlies in 2015. In American football, a nickel defense (also known as a 425 or 3–3–5) is any defensive alignment that uses five defensive backs, of whom the fifth is known as a nickelback.

  7. Sequence alignment - Wikipedia

    en.wikipedia.org/wiki/Sequence_alignment

    2S = 2 soft clipping (could be mismatches, or a read longer than the matched sequence) 5M = 5 matches or mismatches 2D = 2 deletions 2M = 2 matches or mismatches The original CIGAR format from the exonerate alignment program did not distinguish between mismatches or matches with the M character. The SAMv1 spec document defines newer CIGAR codes.

  8. Machine learning - Wikipedia

    en.wikipedia.org/wiki/Machine_learning

    Machine learning (ML) is a field of study in artificial intelligence concerned with the development and study of statistical algorithms that can learn from data and generalize to unseen data, and thus perform tasks without explicit instructions. [1]

  9. Gap penalty - Wikipedia

    en.wikipedia.org/wiki/Gap_penalty

    An example includes seeking promoters within a DNA sequence. Unlike global alignment, it compromises of no end gaps in one or both sequences. If the end gaps are penalized in one sequence 1 but not in sequence 2, it produces an alignment that contains sequence 2 within sequence 1.