Perl
Definition of Perl
Perl is a programming language that is used for text processing, system administration, and web development. It is known for its powerful regular expression capabilities.
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Prior Distribution
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Definition of Prior Distribution A prior distribution is a probability distribution that is used to assign a probability to each outcome in a problem before any data is observed. This distribution is usually chosen based on experience or intuition.
Kernel Regression
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Definition of Kernel Regression Kernel Regression: Kernel regression is a type of nonlinear regression that uses a kernel function to calculate the weight of each input data point. This type of regression is often used for time series data, where the input points are close together in time. How is Kernel Regression used? Kernel Regression…
Covariance
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Covariance is a measure of how two variables change together. It is calculated as the variance of the product of the two variables divided by the product of their standard deviations.
LASSO
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Definition of LASSO Lasso: A type of regression where the researcher deliberately chooses a subset of the independent variables for inclusion in the model. It is also known as the “Least Absolute Shrinkage and Selection Operator”, or “LASSO” for short. How is LASSO used? LASSO, or Least Absolute Shrinkage and Selection Operator, is an algorithm…
Facet
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Definition of Facet Facet: A facet is a property or attribute of an object that can be measured or quantified. In data science, facets are often used to group and filter data sets based on specific criteria. For example, a data set might be grouped by country of origin, age group, or income level. How…