# Definitions for developers starting with letter P

**Perl**definition Definition in pre-Linux UNIX systems. Perl has always been popular for text processing, especially data cleanup and enhancement tasks. See also compare**Python**definition Explain 1994 that is popular with people doing data science. Python is noted for ease of use among beginners and great power when used by advanced why**Pandas**definition What is A Python library for data manipulation popular with data scientists. See also Python how better**Table Pivot**definition Meaning lists of data, without requiring you to write a single formula or copy a single cell. But the most notable feature of pivot tables is that when**Distribution Poisson**definition Abbreviation usually over a period of time or space, used to help predict the probability of an event. Like the binomial distribution, this is a determines**Analysis Component Principal**definition How to direction with the most variance and then determines that as the first principal component. This is very similar to how regression works in comparing to**Modeling Predictive**definition Help The development of statistical models to predict future events. See also predictive analytics, model depends on**Distribution Probability**definition Crossword discrete random variable is a listing of all possible distinct outcomes and their probabilities of occurring. Because all possible outcomes which**Analytics Predictive**definition Examples events, typically to aid in business planning. This incorporates predictive modeling and other techniques. Machine learning might be difference**Perceptron**definition Encyclopedia network is the perceptron, which approximates a single neuron with n binary inputs. It computes a weighted sum of its inputs and ‘fires’ if when**Distribution Prior**definition Information about the unknown quantity to be estimated has many plausible values modeled by what's called a prior distribution. Bayesian inference is pros and cons**Distribution Posterior**definition Tutorial See prior distribution similarities**Value P**definition Error the assumption of no effect or no difference (the null hypothesis), of obtaining a result equal to or more extreme than what was actually how much**Pagerank**definition Answer importance of something, typically to rank it in a list of search results. “PageRank works by counting the number and quality of links to a how many

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Definition of PageRank definition P value explain posterior distribution what is prior distribution meaning perceptron abbreviation predictive analytics how to probability. description.

What is Perl definition Python explain Pandas what is pivot table meaning in web development.