rescale_node_attr_in_selection: Rescale numeric node attribute values for nodes in a selection

Description

From a graph object of class dgr_graph, take a set of numeric values for node attributes specified in a selection of nodes, rescale to a new numeric or color range, then write a new set of node attribute values.

Usage

rescale_node_attr_in_selection(graph, node_attr_from, node_attr_to,
  to_lower_bound = 0, to_upper_bound = 1, from_lower_bound = NULL,
  from_upper_bound = NULL)

Arguments

graph

a graph object of class dgr_graph that is created using create_graph.

node_attr_from

the node attribute containing numeric data that is to be rescaled to new numeric or color values.

node_attr_to

the name of the new or existing node attribute that will contain the scaled values. If the node attribute exists for the selected nodes, rescaled values will replace any existing values.

to_lower_bound

the lower bound value for the set of rescaled values. This can be a numeric value or an X11 color name.

to_upper_bound

the upper bound value for the set of rescaled values. This can be a numeric value or an X11 color name.

from_lower_bound

an optional, manually set lower bound value for the set of values to be rescaled. If not set, the minimum value of the set of values to be rescaled will be used.

from_upper_bound

an optional, manually set upper bound value for the set of values to be rescaled. If not set, the minimum value of the set of values to be rescaled will be used.

Value

a graph object of class dgr_graph.