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fixprevious fix objects saved from r versions previous to 1 8 rdrr io find an r package r language docs run r in your browser home r documentation methods fixprevious fix objects saved from r versions previous to 1 8 fixprevious fix objects saved from r versions previous to 1 8 fixpre1 8 r documentation fix objects saved from r versions previous to 1 8 description beginning with r version 1 8 0 the class of an object contains the identification of the package in which the class is defined the function fixpre1 8 fixes and re assigns objects missing that information typically because they were loaded from a file saved with a previous version of r usage fixpre1 8 names where arguments names character vector of the names of all the objects to be fixed and re assigned where the environment from which to look for the objects and for class definitions defaults to the top environment of the call to fixpre1 8 the global environment if the function is used interactively details the named object will be saved where it was found its class attribute will be changed to the full form required by r 1 8 otherwise the contents of the object should be unchanged objects will be fixed and re assigned only if all the following conditions hold the named object exists it is from a defined class not a basic datatype which has no actual class attribute the object appears to be from an earlier version of r the class is currently defined the object is consistent with the current class definition if any condition except the second fails a warning message is generated note that fixpre1 8 currently fixes only the change in class attributes in particular it will not fix binary versions of packages installed with earlier versions of r if these use incompatible features such packages must be re installed from source which is the wise approach always when major version changes occur in r value the names of all the objects that were in fact re assigned methods as force an object to belong to a class basicclasses classes corresponding to basic data types callgeneric call the current generic function from a method cancoerce can an object be coerced to a certain s4 class cbind2 combine two objects by columns or rows classes s4 class documentation classes_details class definitions classestoam compute an adjacency matrix for superclasses of class classname class names including the corresponding package classrepresentation class class objects documentation using and creating on line documentation for classes and dotsmethods the use of in method signatures emptymethodslist class internal class representing empty methods list environmentclass class environment evalsource use function definitions from a source file without findclass find class definitions findmethods description of the methods defined for a generic function fixprevious fix objects saved from r versions previous to 1 8 genericfunction class generic function objects genericfunctions tools for managing generic functions getclass get class definition getmethod get or test for the definition of a method getpackagename the name associated with a given package hasarg look for an argument in the call implicitgeneric manage implicit versions of generic functions inheritedslotnames names of slots inherited from a super class initialize methods methods to initialize new objects from a class introduction basic use of s4 methods and classes is is an object from a class issealedmethod check for a sealed method or class languageclasses classes to represent unevaluated language objects languageel elements of language objects linearmethodslist class class linearmethodslist localrefclass localized objects based on reference classes methoddefinition class classes to represent method definitions methods s4 class documentation methods defunct defunct functions in package methods methods deprecated deprecated functions in package methods methods_details general information on methods methods_for_nongenerics methods for non generic functions in other packages methods_for_s3 methods for s3 and s4 dispatch method skeleton create a skeleton file for a new method methodslist methodslist objects methodslist class class methodslist defunct representation of methods methods package formal methods and classes methodsupport additional support functions for methods methodutilities utility functions for methods and s plus compatibility methodwithnext class class methodwithnext new generate an object from a class nextmethod call an inherited method nonstructure class a non structure s4 class for basic types objectswithpackage class a vector of object names with associated package names promptclass generate a shell for documentation of a formal class promptmethods generate a shell for documentation of formal methods rclassutils utilities for managing class definitions refclass objects with fields treated by reference oop style removemethod remove a method representation construct a representation or a prototype for a class rmethodutils method utilities s3part s4 classes that contain s3 classes s4groupgeneric s4 group generic functions sclassextension class class to represent inheritance extension relations selectsuperclasses super classes of specific kinds of a class setas methods for coercing an object to a class setclass create a class definition setclassunion classes defined as the union of other classes setgeneric create a generic version of a function setgroupgeneric create a group generic version of a function setis specify a superclass explicitly setloadactions set actions for package loading setmethod create and save a method setoldclass register old style s3 classes and inheritance setsclass create a class definition show show an object showmethods show all the methods for the specified function s or class signature class class signature for method definitions slot the slots in an object from a formal class stdrefclass class envrefclass structureclasses classes corresponding to basic structures substitutedirect substitutedirect testinheritedmethods test for and report about selection of inherited methods traceclasses classes used internally to control tracing validobject test the validity of an object zbasicfunslist list of builtin and special functions what can we improve the page or its content looks wrong i can t find what i m looking for i have a suggestion other extra info optional submit improve this page r package documentation rdrr io home r language documentation run r code online browse r packages cran packages bioconductor packages r forge packages github packages we want your feedback note that we can t provide technical support on individual packages you should contact the package authors for that tweet to rdrrhq github issue tracker ian mutexlabs com personal blog embedding an r snippet on your website add the following code to your website remove this copy to clipboard for more information on customizing the embed code read embedding snippets close