Linguistic Fuzzy Logic
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Documentation for package ‘lfl’ version 2.2.1
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A C D E F G H I K L M N P Q R S T V
-- A --
| aggregateConsequents | Aggregation of fired consequents into a resulting fuzzy set |
| algebra | Algebra for Fuzzy Sets |
| algebraNA | Modify algebra's way of computing with 'NA' values. |
| allowed.lingexpr | Creator of functions representing linguistic expressions |
| antecedents | Extract antecedent-part (left-hand side) of rules in a list |
| as.ctx3 | Context for linguistic expressions |
| as.ctx3.ctx3 | Context for linguistic expressions |
| as.ctx3.ctx3bilat | Context for linguistic expressions |
| as.ctx3.ctx5 | Context for linguistic expressions |
| as.ctx3.ctx5bilat | Context for linguistic expressions |
| as.ctx3.default | Context for linguistic expressions |
| as.ctx3bilat | Context for linguistic expressions |
| as.ctx3bilat.ctx3 | Context for linguistic expressions |
| as.ctx3bilat.ctx3bilat | Context for linguistic expressions |
| as.ctx3bilat.ctx5 | Context for linguistic expressions |
| as.ctx3bilat.ctx5bilat | Context for linguistic expressions |
| as.ctx3bilat.default | Context for linguistic expressions |
| as.ctx5 | Context for linguistic expressions |
| as.ctx5.ctx3 | Context for linguistic expressions |
| as.ctx5.ctx3bilat | Context for linguistic expressions |
| as.ctx5.ctx5 | Context for linguistic expressions |
| as.ctx5.ctx5bilat | Context for linguistic expressions |
| as.ctx5.default | Context for linguistic expressions |
| as.ctx5bilat | Context for linguistic expressions |
| as.ctx5bilat.ctx3 | Context for linguistic expressions |
| as.ctx5bilat.ctx3bilat | Context for linguistic expressions |
| as.ctx5bilat.ctx5 | Context for linguistic expressions |
| as.ctx5bilat.ctx5bilat | Context for linguistic expressions |
| as.ctx5bilat.default | Context for linguistic expressions |
| as.data.frame.farules | Convert the instance of the 'farules()' S3 class into a data frame. Empty 'farules()' object is converted into an empty 'data.frame()'. |
| as.data.frame.fsets | Convert an object of 'fsets' class into a matrix or data frame This function converts an instance of S3 class fsets into a matrix or a data frame. The 'vars()' and 'specs()' attributes of the original object are deleted. |
| as.matrix.fsets | Convert an object of 'fsets' class into a matrix or data frame This function converts an instance of S3 class fsets into a matrix or a data frame. The 'vars()' and 'specs()' attributes of the original object are deleted. |
-- C --
| c.farules | Take a sequence of instances of S3 class 'farules()' and combine them into a single object. An error is thrown if some argument does not inherit from the 'farules()' class. |
| cbind.fsets | Combine several 'fsets' objects into a single one |
| compose | Composition of Fuzzy Relations |
| consequents | Extract consequent-part (right-hand side) of rules in a list |
| ctx | Context for linguistic expressions |
| ctx3 | Context for linguistic expressions |
| ctx3bilat | Context for linguistic expressions |
| ctx5 | Context for linguistic expressions |
| ctx5bilat | Context for linguistic expressions |
-- D --
| defaultHedgeParams | A list of the parameters that define the shape of the hedges. |
| defuzz | Convert fuzzy set into a crisp numeric value |
| dragonfly | Modify algebra's way of computing with 'NA' values. |
-- E --
| equidist | Return equidistant breaks |
| equifreq | Return equifrequent breaks |
| evalfrbe | Evaluate the performance of the FRBE forecast |
-- F --
| farules | Create an instance of S3 class 'farules' which represents a set of fuzzy association rules and their statistical characteristics. |
| fcut | Transform data into a 'fsets' S3 class using shapes derived from triangles or raised cosines |
| fcut.data.frame | Transform data into a 'fsets' S3 class using shapes derived from triangles or raised cosines |
| fcut.default | Transform data into a 'fsets' S3 class using shapes derived from triangles or raised cosines |
| fcut.factor | Transform data into a 'fsets' S3 class using shapes derived from triangles or raised cosines |
| fcut.logical | Transform data into a 'fsets' S3 class using shapes derived from triangles or raised cosines |
| fcut.matrix | Transform data into a 'fsets' S3 class using shapes derived from triangles or raised cosines |
| fcut.numeric | Transform data into a 'fsets' S3 class using shapes derived from triangles or raised cosines |
| fire | Evaluate rules and obtain truth-degrees |
| frbe | Fuzzy Rule-Based Ensemble (FRBE) of time-series forecasts |
| fsets | S3 class representing a set of fuzzy sets on the fixed universe |
| ft | Fuzzy transform |
| ftinv | Inverse of the fuzzy transform |
-- G --
| goedel.biresiduum | Algebra for Fuzzy Sets |
| goedel.residuum | Algebra for Fuzzy Sets |
| goedel.tconorm | Algebra for Fuzzy Sets |
| goedel.tnorm | Algebra for Fuzzy Sets |
| goguen.biresiduum | Algebra for Fuzzy Sets |
| goguen.residuum | Algebra for Fuzzy Sets |
| goguen.tconorm | Algebra for Fuzzy Sets |
| goguen.tnorm | Algebra for Fuzzy Sets |
-- H --
| hedge | Linguistic hedges |
| horizon | Create a function that computes linguistic horizons |
-- I --
| invol.neg | Algebra for Fuzzy Sets |
| is.algebra | Algebra for Fuzzy Sets |
| is.ctx3 | Context for linguistic expressions |
| is.ctx3bilat | Context for linguistic expressions |
| is.ctx5 | Context for linguistic expressions |
| is.ctx5bilat | Context for linguistic expressions |
| is.farules | Test whether 'x' inherits from the S3 'farules' class. |
| is.frbe | Test whether 'x' is a valid object of the S3 'frbe' class |
| is.fsets | Test whether 'x' is a valid object of the S3 'fsets' class |
| is.ft | Test whether 'x' is a valid object of the S3 'ft' class |
| is.specific | Determine whether the first set 'x' of predicates is more specific (or equal) than 'y' with respect to 'vars' and 'specs'. |
-- K --
| kleene | Modify algebra's way of computing with 'NA' values. |
-- L --
| lcut | Transform data into a 'fsets' S3 class of linguistic fuzzy attributes |
| lcut.data.frame | Transform data into a 'fsets' S3 class of linguistic fuzzy attributes |
| lcut.default | Transform data into a 'fsets' S3 class of linguistic fuzzy attributes |
| lcut.factor | Transform data into a 'fsets' S3 class of linguistic fuzzy attributes |
| lcut.logical | Transform data into a 'fsets' S3 class of linguistic fuzzy attributes |
| lcut.matrix | Transform data into a 'fsets' S3 class of linguistic fuzzy attributes |
| lcut.numeric | Transform data into a 'fsets' S3 class of linguistic fuzzy attributes |
| lingexpr | Creator of functions representing linguistic expressions |
| lowerEst | Modify algebra's way of computing with 'NA' values. |
| lukas.biresiduum | Algebra for Fuzzy Sets |
| lukas.residuum | Algebra for Fuzzy Sets |
| lukas.tconorm | Algebra for Fuzzy Sets |
| lukas.tnorm | Algebra for Fuzzy Sets |
-- M --
| mase | Compute Mean Absolute Scaled Error (MASE) |
| minmax | Creating linguistic context directly from values |
| mult | Callback-based Multiplication of Matrices |
-- N --
| nelson | Modify algebra's way of computing with 'NA' values. |
-- P --
| pbld | Perform a Perception-based Logical Deduction (PbLD) with given rule-base on given dataset |
| perceive | From a set of rules, remove each rule for which another rule exists that is more specific. |
| pgoedel.tconorm | Algebra for Fuzzy Sets |
| pgoedel.tnorm | Algebra for Fuzzy Sets |
| pgoguen.tconorm | Algebra for Fuzzy Sets |
| pgoguen.tnorm | Algebra for Fuzzy Sets |
| plot.fsets | Plot membership degrees stored in the instance of the S3 class 'fsets()' as a line diagram. |
| plukas.tconorm | Algebra for Fuzzy Sets |
| plukas.tnorm | Algebra for Fuzzy Sets |
| print.algebra | Print an instance of the 'algebra()' S3 class in a human readable form. |
| print.ctx3 | Print the linguistic context |
| print.ctx3bilat | Print the linguistic context |
| print.ctx5 | Print the linguistic context |
| print.ctx5bilat | Print the linguistic context |
| print.farules | Print an instance of the 'farules()' S3 class in a human readable form. |
| print.frbe | Print an instance of the 'frbe()' class |
| print.fsets | Print an instance of the 'fsets()' class |
-- Q --
| quantifier | A quantifier is a function that computes a fuzzy truth value of a claim about the quantity. This function creates the <1>-type quantifier. (See the examples below on how to use it as a quantifier of the <1,1> type.) |
-- R --
| raisedcos | Deprecated functions to compute membership degrees of numeric fuzzy sets |
| raisedcosine | Factories for functions that convert numeric data into membership degrees of fuzzy sets |
| rbcoverage | Compute rule base coverage of data |
| reduce | Reduce the size of rule base |
| rmse | Compute Root Mean Squared Error (RMSE) |
-- S --
| searchrules | Searching for fuzzy association rules |
| slices | Return vector of values from given interval |
| smape | Compute Symmetric Mean Absolute Percentage Error (SMAPE) |
| sobocinski | Modify algebra's way of computing with 'NA' values. |
| specs | S3 class representing a set of fuzzy sets on the fixed universe |
| specs<- | S3 class representing a set of fuzzy sets on the fixed universe |
| strict.neg | Algebra for Fuzzy Sets |
| sugeno | A factory function for creation of sugeno-integrals. |
-- T --
| triangle | Deprecated functions to compute membership degrees of numeric fuzzy sets |
| triangular | Factories for functions that convert numeric data into membership degrees of fuzzy sets |
-- V --
| vars | S3 class representing a set of fuzzy sets on the fixed universe |
| vars<- | S3 class representing a set of fuzzy sets on the fixed universe |