The survival function is a function that gives the probability that a patient, device, or other object of interest will survive past a certain time. The...
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Survival analysis is used in several ways: To describe the survival times of members of a group Life tables Kaplan–Meier curves Survival function Hazard...
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Kaplan–Meier estimator (redirect from Kaplan-Meier survival curve)
limit estimator, is a non-parametric statistic used to estimate the survival function from lifetime data. In medical research, it is often used to measure...
27 KB (4,474 words) - 09:02, 25 March 2025
an empirical distribution function (a.k.a. an empirical cumulative distribution function, eCDF) is the distribution function associated with the empirical...
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{\Pr(X>t+s)}{\Pr(X>s)}}=\Pr(X>t).} Rearranging the equality with the survival function, S ( t ) = Pr ( X > t ) {\displaystyle S(t)=\Pr(X>t)} , gives S (...
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product of other distributions. If a density is log-concave, so is its survival function. If a density is log-concave, it has a monotone hazard rate (MHR)...
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{P} (T>t)=1-F_{T}(t).} In survival analysis, F ¯ X ( x ) {\displaystyle {\bar {F}}_{X}(x)} is called the survival function and denoted S ( x ) {\displaystyle...
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}\operatorname {coth} (t^{\beta }))}{\beta }}} The Hypertabastic survival function is defined as S ( t ) = sech [ α ( 1 − t β coth ( t β ) ) β ]...
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A likelihood function (often simply called the likelihood) measures how well a statistical model explains observed data by calculating the probability...
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Power law (section Power-law functions)
(mass) function directly, these methods introduce an implicit bias in the representation of the data, and thus should be avoided. The survival function, on...
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}f(u)\,du} is the complementary cumulative distribution function (also called survival function). The concept is named after John P. Mills. The Mills ratio...
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Generalized linear model (redirect from Link function)
response variable via a link function and by allowing the magnitude of the variance of each measurement to be a function of its predicted value. Generalized...
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optimization and decision theory, a loss function or cost function (sometimes also called an error function) is a function that maps an event or values of one...
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the survival function for Weibull distribution. For α = 1, it is same as the exponential distribution. Another famous example is when the survival model...
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Accelerated failure time model (category Survival analysis)
censored observations one needs the survival function, which is the complement of the cumulative distribution function, i.e. one needs to be able to evaluate...
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Outlier Statistical graphics Histogram Frequency distribution Quantile Survival function Failure rate Scatter plot Bar chart Design of experiments Optimal...
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Survival or survivorship, the act of surviving, is the propensity of something to continue existing, particularly when this is done despite conditions...
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Cross-correlation (redirect from Cross-correlation function)
processing, cross-correlation is a measure of similarity of two series as a function of the displacement of one relative to the other. This is also known as...
26 KB (4,083 words) - 05:53, 30 April 2025
f(t)} is the probability density function and S ( t ) = 1 − F ( t ) {\displaystyle S(t)=1-F(t)} is the survival function, with F ( t ) {\displaystyle F(t)}...
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Failure rate (redirect from Hazard function)
of systems). For convenience we first define the reliability (or survival function) as: R ( t ) = 1 − F ( t ) {\displaystyle R(t)=1-F(t)} then the hazard...
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Regression analysis (redirect from Regression function)
regression models propose that Y i {\displaystyle Y_{i}} is a function (regression function) of X i {\displaystyle X_{i}} and β {\displaystyle \beta } ...
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In time series analysis, the partial autocorrelation function (PACF) gives the partial correlation of a stationary time series with its own lagged values...
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relationship between two variables can be described using a monotonic function. The Spearman correlation between two variables is equal to the Pearson...
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De Moivre's law (category Survival analysis)
is a survival model applied in actuarial science, named for Abraham de Moivre. It is a simple law of mortality based on a linear survival function. De...
10 KB (1,374 words) - 22:57, 23 August 2023
Kolmogorov–Smirnov test (section Setting confidence limits for the shape of a distribution function)
distribution function of the sample and the cumulative distribution function of the reference distribution, or between the empirical distribution functions of two...
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Autocorrelation (redirect from Autocorrelation function)
Pearson correlation between values of the process at different times, as a function of the two times or of the time lag. Let { X t } {\displaystyle \left\{X_{t}\right\}}...
39 KB (5,833 words) - 21:51, 7 May 2025
Lindy effect (category Survival analysis)
by Iddo Eliazar) is a positive constant. This is equivalent to the survival function of T being Φ ( t ) := Pr ( T > t ) = ( c t ) ϵ , where ϵ = 1 + 1...
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and often for density estimation: estimating the probability density function of the underlying variable. The total area of a histogram used for probability...
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calculated by integrating the probability density function (which yields the cumulative distribution function—any other means of calculating the CDF will also...
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Moment (mathematics) (redirect from Moment of a function)
mathematics, the moments of a function are certain quantitative measures related to the shape of the function's graph. If the function represents mass density...
21 KB (3,066 words) - 21:09, 14 April 2025