- from R
Open R software and run:
The Steel.Dwass.test package is build in github, and you can install it into your R software now.
How to install it? Click here.
Fomula as y=a+ b*e(c*x)
For exampleto get the turnover time for stable isotopes：δt = δf + (δi - δf)evt
See caution part and original R codes： http://blog.sciencenet.cn/blog-651374-1014133.html
(in alphabetical order)
abbr. : abbreviate vt.
abbr. : abbreviation(s) n.
approx. : approximately
aq : Aqua [Latin] .
aq : Aqueous adj.
ca. : Circa [Latin] (= about). ca. 71% ; ca. 2*4 μm or c. ,e.g., c. 71%
Kruskal-Wallis test is a popular nonparametric ANOVA method ,
and its corresponding post hoc analysis or multiple comparison methods are rarely known by part of scientific researchers,
Briefly, covariance analysis (ANCOVA) is expressed in the R language as y ~ x +/* y0, where the variable is y, the covariate is y0, the independent variable is x. Then, go ahead code test.