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In statistics, a proxy or proxy variable is a variable that is not in itself directly relevant, but that serves in place of an unobservable or immeasurable variable. [1] In order for a variable to be a good proxy, it must have a close correlation, not necessarily linear, with the variable of interest. This correlation might be either positive ...
A de facto standard for identifying the originating protocol of an HTTP request, since a reverse proxy (or a load balancer) may communicate with a web server using HTTP even if the request to the reverse proxy is HTTPS. An alternative form of the header (X-ProxyUser-Ip) is used by Google clients talking to Google servers.
In computer science, futures, promises, delays, and deferreds are constructs used for synchronizing program execution in some concurrent programming languages.Each is an object that acts as a proxy for a result that is initially unknown, usually because the computation of its value is not yet complete.
In computer programming, the proxy pattern is a software design pattern.A proxy, in its most general form, is a class functioning as an interface to something else.The proxy could interface to anything: a network connection, a large object in memory, a file, or some other resource that is expensive or impossible to duplicate.
In this example, innate ability (thought of as for example IQ at pre-school age) is a variable influencing wages , but its value is unavailable to researchers at the time of estimation. Instead they choose before-work IQ test scores L {\displaystyle L} , or late ability, as a proxy variable to estimate innate ability and perform regression from ...
Proxy (climate), a measured variable used to infer the value of a variable of interest in climate research; Proxy (statistics), a measured variable used to infer the value of a variable of interest; Healthcare proxy, a document used to specify an agent to make medical decisions for a patient in case they are incapacitated
Munchausen by proxy is a rare mental disorder and can become a serious form of child abuse. Recently, the condition has gotten increased attention due to its connection to a major news story.
A proxy server may reside on the user's local computer, or at any point between the user's computer and destination servers on the Internet. A proxy server that passes unmodified requests and responses is usually called a gateway or sometimes a tunneling proxy. A forward proxy is an Internet-facing proxy used to retrieve data from a wide range ...