Plot loadings.

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Description

A function to plot the loadings resulting from fitting a PPCA model or a PPCCA model to metabolomic data. A barplot or a scatterplot can be produced.

Usage

1
loadings.plot(output, barplot = FALSE, labelsize = 0.3)

Arguments

output

An object resulting from fitting a PPCA model or a PPCCA model.

barplot

Logical indicating whether a barplot of the loadings is required rather than a scatter plot. By default a scatter plot is produced.

labelsize

Size of the text of the spectral bin labels on the resulting plot.

Details

A function to plot the loadings resulting from fitting a PPCA model or a PPCCA model to metabolomic data. A barplot or a scatterplot can be produced. The size of the text of the spectral bin labels on the bar plot can also be adjusted if the number of bins plotted is large.

Author(s)

Nyamundanda Gift, Isobel Claire Gormley and Lorraine Brennan

References

Nyamundanda, G., Gormley, I.C. and Brennan, L. (2010) Probabilistic principal components analysis for metabolomic data. Technical report. University College Dublin, Ireland.

See Also

ppca.metabol, ppcca.metabol

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