quadratic-class {flowCore} | R Documentation |
Quadratic transform class defines a transformation defined by the function
f(parameter,a)=a*parameter^2
Objects can be created by calls to the constructor
quadratic(parameters,a,transformationId)
.Data
:Object of class "function"
~~
a
:Object of class "numeric"
-non zero multiplicative
constant
parameters
:Object of class "transformation"
-flow
parameter to be transformed
transformationId
:Object of class "character"
-unique
ID to reference the transformation
Class "singleParameterTransform"
, directly.
Class "transform"
, by class "singleParameterTransform",
distance 2.
Class "transformation"
, by class "singleParameterTransform",
distance 3.
Class "characterOrTransformation"
, by class "singleParameterTransform",
distance 4.
No methods defined with class "quadratic" in the signature.
The quadratic transformation object can be evaluated using the eval method by passing the data frame as an argument.The transformed parameters are returned as a column vector. (See example below)
Gopalakrishnan N, F.Hahne
Gating-ML Candidate Recommendation for Gating Description in Flow Cytometry V 1.5
dg1polynomial,ratio,squareroot
dat <- read.FCS(system.file("extdata","0877408774.B08", package="flowCore")) quad1<-quadratic(parameters="FSC-H",a=2,transformationId="quad1") transOut<-eval(quad1)(exprs(dat))