subset.CommunityCollection {cheddar} | R Documentation |
A subset of a CommunityCollection
.
## S3 method for class 'CommunityCollection' subset(x, subset, properties=NULL, ...)
x |
An object of class |
subset |
logical expression indicating communities to keep. |
properties |
The names of properties passed to |
... |
further arguments passed to other methods. |
CollectionCPS
is used to gather properties
.
properties
should contain the names of properties required to evaluate
subset
. If properties
is NULL
, all first-class properties
are available to the subset
expression. Returns a new
CommunityCollection
or NULL
if no communities in x
meet
the criteria in subset
.
A new object of class CommunityCollection
or NULL
.
Lawrence Hudson
CommunityCollection
, CollectionCPS
,
subset
data(pHWebs) # Two communities have pH>7 subset(pHWebs, pH>7) # No communities have pH>10 so this returns NULL subset(pHWebs, pH>7) # Get a subset based on a computed property subset(pHWebs, S>50, properties=c(S='NumberOfNodes')) # X is not a property so this raises an error ## Not run: subset(pHWebs, X==1)