lamb2: Yield components in oat.

In gustavobio/semeco: Examples of Structural Equation Modelling Usage in Ecology

Description

Covariance matrix and syntaxes for the three first models in the paper by Lamb et al. (2011).

Usage

data(lamb2)
lamb2
lamb2.model.fig1
lamb2.model.fig2
lamb2.model.fig3

Format

A covariance matrix and three character vectors with model specifications.

Note

We couldn't make the latent variable models converge, so we included only the path models.

Source

Article:

http://pubs.aic.ca/doi/full/10.4141/cjps2010-035

References

Lamb E, Shirtliffe S, and May, W. 2011. Structural equation modeling in the plant sciences: An example using yield components in oat. Canadian Journal of Plant Sciences 91: 603-619.

Examples

## Not run: 
data(lamb2)
lamb2.model.fig1.fit <- sem(lamb2.model.fig1, sample.cov = lamb2,
                            sample.nobs = 144)
lamb2.model.fig2.fit <- sem(lamb2.model.fig2, sample.cov = lamb2,
                            sample.nobs = 144)
lamb2.model.fig3.fit <- sem(lamb2.model.fig3, sample.cov = lamb2,
                            sample.nobs = 144)
summary(lamb2.model.fig1.fit, standardized = TRUE)
summary(lamb2.model.fig2.fit, standardized = TRUE)
summary(lamb2.model.fig3.fit, standardized = TRUE)

## End(Not run)

gustavobio/semeco documentation built on May 17, 2019, 9:29 a.m.