statsIso {GCDkit} | R Documentation |
Plots a boxplot or stripplot for a given isotopic parameter, respecting groups.
boxplotIso() stripplotIso()
None.
The boxplot portrays realistically a statistical distribution of the data. The
box represents, for each of the groups, the two quartiles, the line inside is a
median, the whiskers show the whole range without outliers.
Stripplot shows 1D scatter plots for each of the groups, with some artificial
noise (jitter) added to make the individual points better visible. Stripplots
are a good alternative to boxplots when sample sizes are small.
The variables to choose from are:
Menu item | Explanation |
87Sr/86Sri | Initial Sr isotopic ratios |
143Nd/144Ndi | Initial Nd isotopic ratios |
EpsNdi | Initial ε(Nd) values |
1 stg DM model ages (Goldstein et al. 1988) | Single-stage DM Nd model ages |
1 stg DM model ages (Liew & Hofmann 1988) | Single-stage DM Nd model ages |
2 stg DM model ages (Liew & Hofmann 1988) | Two-stage DM Nd model ages |
None.
SrNd.r
Vojtech Janousek, vojtech.janousek@geology.cz
Liew T C & Hofmann A W (1988) Precambrian crustal components, plutonic associations, plate environment of the Hercynian Fold Belt of Central Europe: indications from a Nd and Sr isotopic study. Contrib Mineral Petrol 98: 129-138
Goldstein S L, O'Nions R K & Hamilton P J (1984) A Sm-Nd isotopic study of atmospheric dusts and particulates from major river systems. Earth Planet Sci Lett 70: 221-236