receiver operating characteristic


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re·ceiv·er op·er·at·ing char·ac·ter·is·tic (ROC),

a plot of the sensitivity of a diagnostic test as a function of nonspecificity (one minus the specificity). The ROC curve indicates the intrinsic properties of a test's diagnostic performance and can be used to compare the relative merits of competing procedures.

characteristic

(kar?ak-te-ris'tik) [Gr. charakteristikos, pert. to a stamp]
1. A trait or character typical of an organism or of an individual.
2. In logarithmic expressions, the number to the left of the decimal point, as distinguished from the mantissa, the number to the right of the decimal point.

acquired characteristic

A trait or quality that was not inherited but is the result of environmental influence.

anal characteristic

Anal personality.

dominant characteristic

See: dominant

primary sex characteristic

An inherited trait that influences the development of the reproductive organs.

receiver operating characteristic

Receiver operating curve.

recessive characteristic

Recessive gene.

secondary sex characteristic

A gender-related physical attribute that normally develops under the influence of sex hormones at puberty. Voice quality, facial hair, and body fat distribution are examples.

sex-conditioned characteristic

A genetic trait carried by both sexes but expressed or inhibited by the sex of the individual.

sex-limited characteristic

A trait present in only one sex even though the gene responsible is present in both sexes.

sex-linked characteristic

A trait controlled by genes on the sex chromosomes. The X and Y chromosomes determine sex but also carry genes unrelated to sex.
Synonym: sex-linked gene
References in periodicals archive ?
The inconsistency of "optimal" cutpoints obtained using two criteria based on the receiver operating characteristic curve.
Steps in the Derivation of a Summary Receiver Operating Characteristic (SROC) Curve Steps Interpretation TPR = sensitivity = TP/(TP + FN) FPR = (1--specificity) = FP/(FP + TN) Generate ROC plot X-axis FPR = (1--specificity) Y-axis Sensitivity Derivation of SROC curve 1.
Properties of the summary receiver operating characteristic (SROC) curve for diagnostic test data.
Receiver operating characteristic curves were used to assess the prognostic ability of different clinical variables, including [LHL.
A biostatistician with the Memorial Sloan-Kettering Cancer Center introduces receiver operating characteristic (ROC) curves as a statistical tool for assessing the accuracy of predictions, and shows how to produce ROC curves with the available features in SAS.
The investigators calculated results by estimating the area under the receiver operating characteristic (ROC) curve with 95% confidence intervals.
A distribution-free procedure for comparing receiver operating characteristic curves from a paired experiment.
This Sunday, CLC bio and BioFormatix - a medical diagnostics software developer - will officially release their Bootstrapped Receiver Operating Characteristic (bROC) plug-in for CLC bio's desktop software packages, CLC Main Workbench and CLC Genomics Workbench.
As a continuous predictor, platelet counts, international normalised ratio, activated partial thromboplastin time and plasma fibrinogen concentrations were also not useful in differentiating between acute PE and other pulmonary pathologies (areas under the receiver operating characteristic curve were all close to 0.
Based upon the receiver operating characteristic curves, model 3 was chosen as the final model containing seven variables (listed with scoring method in Our Critique).

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