• 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...
    16 KB (2,086 words) - 03:20, 11 April 2025
  • 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...
    50 KB (6,977 words) - 11:12, 17 July 2025
  • Thumbnail for Kaplan–Meier estimator
    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 (4,445 words) - 12:14, 1 July 2025
  • Thumbnail for Empirical distribution function
    an empirical distribution function (a.k.a. an empirical cumulative distribution function, eCDF) is the distribution function associated with the empirical...
    13 KB (1,514 words) - 06:53, 17 July 2025
  • {\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 (...
    7 KB (919 words) - 06:45, 14 July 2025
  • Thumbnail for Cumulative distribution function
    {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...
    26 KB (4,110 words) - 19:15, 28 July 2025
  • 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...
    11 KB (1,473 words) - 03:37, 27 January 2025
  • 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)...
    10 KB (1,319 words) - 19:51, 17 July 2025
  • Thumbnail for Cross-correlation
    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
  • Thumbnail for Power law
    (mass) function directly, these methods introduce an implicit bias in the representation of the data, and thus should be avoided. The survival function, on...
    66 KB (8,434 words) - 17:09, 21 July 2025
  • Thumbnail for Loss function
    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...
    21 KB (2,801 words) - 14:31, 25 July 2025
  • }f(u)\,du} is the complementary cumulative distribution function (also called survival function). The concept is named after John P. Mills. The Mills ratio...
    7 KB (890 words) - 04:48, 22 January 2024
  • Thumbnail for Regression analysis
    regression models propose that Y i {\displaystyle Y_{i}} is a function (regression function) of X i {\displaystyle X_{i}} and β {\displaystyle \beta } ...
    37 KB (5,235 words) - 18:48, 4 August 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)}...
    18 KB (2,876 words) - 22:13, 19 June 2025
  • A likelihood function (often simply called the likelihood) measures how well a statistical model explains observed data by calculating the probability...
    64 KB (8,546 words) - 18:27, 4 August 2025
  • the survival function for Weibull distribution. For α = 1, it is same as the exponential distribution. Another famous example is when the survival model...
    5 KB (1,137 words) - 10:14, 28 July 2025
  • 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...
    31 KB (4,202 words) - 04:22, 20 April 2025
  • Outlier Statistical graphics Histogram Frequency distribution Quantile Survival function Failure rate Scatter plot Bar chart Design of experiments Optimal...
    9 KB (753 words) - 04:05, 18 July 2025
  • }\operatorname {coth} (t^{\beta }))}{\beta }}} The Hypertabastic survival function is defined as S ( t ) = sech ⁡ [ α ( 1 − t β coth ⁡ ( t β ) ) β ]...
    36 KB (5,676 words) - 04:26, 12 July 2025
  • Thumbnail for Autocorrelation
    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\}}...
    40 KB (5,833 words) - 00:42, 20 June 2025
  • the relationship between two variables can be described by a monotonic function. The Kendall tau rank correlation coefficient is a measure of the portion...
    8 KB (754 words) - 04:50, 11 June 2025
  • Thumbnail for Interquartile range
    calculated by integrating the probability density function (which yields the cumulative distribution function—any other means of calculating the CDF will also...
    10 KB (1,131 words) - 00:32, 18 July 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...
    14 KB (1,696 words) - 17:37, 30 June 2025
  • Thumbnail for Kolmogorov–Smirnov test
    distribution function of the sample and the cumulative distribution function of the reference distribution, or between the empirical distribution functions of two...
    31 KB (3,909 words) - 09:43, 9 May 2025
  • Thumbnail for Log-Cauchy distribution
    F(x;0,1)={\frac {1}{2}}+{\frac {1}{\pi }}\arctan(\ln x),\ \ x>0} The survival function when μ = 0 {\displaystyle \mu =0} and σ = 1 {\displaystyle \sigma...
    12 KB (1,297 words) - 22:48, 4 June 2025
  • Thumbnail for Survival
    Survival or survivorship, the act of surviving, is the propensity of something to continue existing, particularly when this is done despite conditions...
    14 KB (1,688 words) - 00:20, 2 June 2025
  • for which Mandelbrot used the term "Lévy flight" is defined by the survival function of the distribution of step-sizes, U, being Pr ( U > u ) = { 1 :  ...
    17 KB (1,816 words) - 00:05, 24 May 2025
  • Thumbnail for Survival skills
    wilderness to avoid dehydration and to keep the body functioning properly. The U.S. Army survival manual does not recommend drinking water only when thirsty...
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  • {\displaystyle X} and Y {\displaystyle Y} have the following joint probability mass function, in which the six central cells give the discrete joint probabilities f...
    29 KB (4,754 words) - 01:56, 4 May 2025
  • accelerated (or decelerated). Survival models can be viewed as consisting of two parts: the underlying baseline hazard function, often denoted λ 0 ( t ) {\displaystyle...
    35 KB (5,760 words) - 13:31, 2 January 2025