Generate FOBI Graphs

Source: R/fobi_graph.R

This function allows users to create networks based on FOBI relationships.

fobi_graph(
  terms = NULL,
  get = NULL,
  property = c("is_a", "BiomarkerOf", "Contains"),
  layout = "sugiyama",
  labels = FALSE,
  labelsize = 3,
  legend = FALSE,
  legendSize = 10,
  legendPos = "bottom",
  curved = FALSE,
  pointSize = 3,
  fobi = fobitools::fobi
)

Arguments

terms

A character vector with FOBI term IDs.

get

A character string indicating desired relationships between provided terms. Options are 'anc' (for ancestors) and 'des' (for descendants). Default is NULL and all information related with input terms will be provided.

property

A character vector indicating which properties should be plotted. Options are 'is_a', 'BiomarkerOf', and 'Contains'. By default all of them are included.

layout

A character string indicating the type of layout to create. Options are 'sugiyama' (default) and 'lgl'.

labels

Logical indicating if node names should be plotted or not.

labelsize

Numeric value indicating the size of labels.

legend

Logical indicating if legend should be plotted or not.

legendSize

Numeric value indicating the size of legend.

legendPos

A character string indicating the legend position (if legend parameter is set to TRUE). Options are 'bottom' (default) and 'top'.

curved

Logical indicating if the shape of the edges shape should be curved or not.

pointSize

Numeric value indicating the size of graph points.

fobi

FOBI table obtained with `parse_fobi()`. If this value is set to NULL, the last version of FOBI will be downloaded from GitHub.

Value

A ggraph object.

References

Pol Castellano-Escuder, Raúl González-Domínguez, David S Wishart, Cristina Andrés-Lacueva, Alex Sánchez-Pla, FOBI: an ontology to represent food intake data and associate it with metabolomic data, Database, Volume 2020, 2020, baaa033, https://doi.org/10.1093/databa/baaa033.

Author

Pol Castellano-Escuder

Examples


terms <- c("CHEBI:16164","CHEBI:16243","FOODON:00001139","FOODON:00003274","FOODON:00003275")
fobi_graph(terms, get = "anc")


# Red meat related FOBI biomarkers
fobi_graph(terms = "FOBI:0193", 
           property = c("is_a", "BiomarkerOf"), 
           layout = "lgl", curved = TRUE) # set labels = TRUE to display node names