Instatistics, aGalbraith plot (also known asGalbraith's radial plot or justradial plot) is one way of displaying several estimates of the same quantity that have differentstandard errors.[1]
A Galbraith plot is produced by first calculating the standardized estimates orz-statistics by dividing each estimate by itsstandard error (SE). The Galbraith plot is then ascatter plot of eachz-statistic (vertical axis) against 1/SE (horizontal axis). Larger studies (with smaller SE and larger 1/SE) will be observed to aggregate away from the origin.[2]
^Galbraith, Rex (1988). "Graphical display of estimates having differing standard errors".Technometrics.30 (3). Technometrics, Vol. 30, No. 3:271–281.doi:10.2307/1270081.JSTOR1270081.
Galbraith, R.F., 1990. The radial plot: Graphical assessment of spread in ages. International Journal of Radiation Applications and Instrumentation. Part D. Nuclear Tracks and Radiation Measurements, 17 (3), pp. 207–214.doi:10.1016/1359-0189(90)90036-W.
Galbraith, R. & Green, P., 1990. Estimating the component ages in a finite mixture. International Journal of Radiation Applications and Instrumentation. Part D. Nuclear Tracks and Radiation Measurements, 17 (3), pp. 197–206.doi:10.1016/1359-0189(90)90035-V
Galbraith, R.F. & Laslett, G.M., 1993. Statistical models for mixed fission track ages. Nuclear Tracks And Radiation Measurements, 21 (4), pp. 459–470.doi:10.1016/1359-0189(93)90185-C
Galbraith, R.F., 2010. On plotting OSL equivalent doses. Ancient TL, 28 (1), pp. 1–10.[1]
Galbraith, R.F. & Roberts, R.G., 2012. Statistical aspects of equivalent dose and error calculation and display in OSL dating: An overview and some recommendations. Quaternary Geochronology, 11, pp. 1–27.doi:10.1016/j.quageo.2012.04.020
