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  2. Kernel density estimation - Wikipedia

    en.wikipedia.org/wiki/Kernel_density_estimation

    Kernel density estimation of 100 normally distributed random numbers using different smoothing bandwidths.. In statistics, kernel density estimation (KDE) is the application of kernel smoothing for probability density estimation, i.e., a non-parametric method to estimate the probability density function of a random variable based on kernels as weights.

  3. Normal distribution - Wikipedia

    en.wikipedia.org/wiki/Normal_distribution

    4.1.1 Sample mean. 4.1.2 Sample ... The last formula is valid also for any non -integer > When the mean , the plain and absolute moments can be ... c: Heat map of the ...

  4. Microsoft Excel - Wikipedia

    en.wikipedia.org/wiki/Microsoft_Excel

    Microsoft Excel is a spreadsheet editor developed by Microsoft for Windows, macOS, Android, iOS and iPadOS.It features calculation or computation capabilities, graphing tools, pivot tables, and a macro programming language called Visual Basic for Applications (VBA).

  5. Confidence interval - Wikipedia

    en.wikipedia.org/wiki/Confidence_interval

    Factors affecting the width of the CI include the sample size, the variability in the sample, and the confidence level. [2] All else being the same, a larger sample produces a narrower confidence interval, greater variability in the sample produces a wider confidence interval, and a higher confidence level produces a wider confidence interval. [3]

  6. Skewness - Wikipedia

    en.wikipedia.org/wiki/Skewness

    where ¯ is the sample mean, s is the sample standard deviation, m 2 is the (biased) sample second central moment, and m 3 is the (biased) sample third central moment. [6] is a method of moments estimator. Another common definition of the sample skewness is [6] [7]

  7. List of mass spectrometry software - Wikipedia

    en.wikipedia.org/wiki/List_of_mass_spectrometry...

    Rational Numbers Excel Add-In Proprietary: De novo identification tool for small molecules that works with Microsoft Excel (2010, 2013, 2016 and 2019). This software treats small molecules as mathematical partitions of the molecular mass and generates subfragment formulas with atoms that are sets of partitions comprising the molecular formula.

  8. Acorn Archimedes - Wikipedia

    en.wikipedia.org/wiki/Acorn_Archimedes

    The first Archimedes models were introduced in 1987, [1] and systems in the Archimedes family were sold until the mid-1990s alongside Acorn's newer Risc PC and A7000 models. [2] The first Archimedes models, featuring a 32-bit ARM2 RISC CPU running at 8 MHz, provided a significant upgrade from Acorn's previous machines and 8-bit home computers ...