Diagnostics for respondent‐driven sampling

Diagnostics for Respondent-driven Sampling.

Respondent-driven sampling (RDS) is a widely used method for sampling from hard-to-reach human populations, especially populations at higher risk for HIV. Data are collected through peer-referral over social networks. RDS has proven practical for data collection in many difficult settings and is widely used. Inference from RDS data requires many strong assumptions because the sampling design is...

"Point of Injury" Sampling Technology for Battlefield Molecular Diagnostics

Functions for Assessing the Sampling Properties of plot.lm() Regression Diagnostics

Regression Diagnostics John Maindonald October 7, 2013 1 Calibration of Regression Diagnostics Indications of departures from regression assumptions in diagnostic plots may reflect sampling variation. This is an especial issue for relatively small datasets. Diagnostic plots for a number of sets of simulated data may be an essential aid to judgement. In e↵ect, the observed diagnostic plot is jud...

Gearbox Fault Diagnostics using AE Sensors with Low Sampling Rate

Acoustic Emission (AE) sensors have been investigated as a potential tool for machinery health monitoring and fault diagnostics. While AE sensors could possibly provide higher fault detection sensitivity compared with vibration sensors, they also have some drawbacks. AE sensors generally output signals in the range of several hundred kHz up to several MHz, making the AE data sampling and proces...

Mterglow Plasma Diagnostics with a Microwave Sampling Radiometer

A simple waveguide arrangement has been developed for the study of microwave absorption and emission from a magnetized afterglow plasma column. The time and frequency resolved measurements are performed by a sampling radiometer. A comparison and null technique permits the direct measurement of the electron temperature. Continuous plots of the temperature vs frequency, magnetic field, and afterg...