transfer-r - v3.0.0

GAMS Transfer R v3.0.0

• C++ GDX API version 7.10.1
• New three digit versioning scheme

GAMS Transfer R 2.9.0

• GDX API changed to the new GDX C++ API - significant performance improvements and no dependency on the GAMS system directory
• systemDirectory argument in the Container constructor is deprecated and will be removed in the future
• Bug fix: Container property summary changed from a method to active binding
• Fixed overriding PKG_CXXFLAGS in Makevars
• Performance improvements in read
• Bug fix: Symbol method equals incorrectly returned FALSE when the symbol records contain NA

- R
Published by 0x17 over 2 years ago

transfer-r - v2.8.0

GAMS Transfer R v2.8.0

• bug fix in reading symbols with unused UELs
• bug fix in getUELs method with unusedUELs argument when the symbol has NULL records
• squashed a build warning

- R
Published by 0x17 over 2 years ago

transfer-r - v2.6.0

GAMS Transfer R v2.6.0

• bug fix in registering unused UELs when not all symbols from the container are written to a GDX file
• Breaking: Following Container methods do not support list input for symbols argument: describeSets, describeAliases, describeParameters, describeVariables, describeEquations, read, removeSymbols, getSymbols. Use vector inputs instead.
• Breaking: types argument in the Container methods listVariables and listEquations does not support the input of type list. Use vector inputs instead.
• Breaking: uelPriority argument in the Container method write does not support the input of type list. Use vector inputs instead.
• Container method write now supports mapped write mode with the help of new argument mode
• Breaking: removed getUniverseSet method from Container. Use getUELs instead.
• Symbol field refContainer is renamed to container.
• bug fix in failed Symbol constructor call resulting in symbol being added to the Container
• The output of describe* Container methods has been improved for clarity.
• summary field for Symbol objects is refined for clarity.
• Container objects now have a summary field.
• New convenience methods for Container objects: getSets, getAliases, getParameters, getVariables, and getEquations.
• Breaking: removed all Const* classes. ConstContainer is no longer supported. Use Container instead.
• bug fix in read for Variable and Equation classes where the lower and upper attributes were interchanged.
• Records columns that are not specified by the user in a dataframe are not auto completed to save memory. For example, a set with only the domain columns will now not have the element_text columns. A default valuer is assumed for the missing attributes.
• bug fix in the Symbol method equals where identical domain symbols exist in different containers
• uelPriority argument in write does not have to be a subset of the universe set. Users can register any UELs using the uelPriority argument.
• new field defaultValues for symbols of type Parameter, Variable, and Equation.
• bug fix in symbol reorderUELs and toDense method for symbols with relaxed domain.

- R
Published by 0x17 over 2 years ago

transfer-r - v2.4.0

GAMS Transfer R v2.4.0

• bug fix in read for Variable and Equation classes where the lower and upper attributes were interchanged.

- R
Published by 0x17 over 2 years ago

transfer-r - v2.2.0

GAMS Transfer R v2.2.0

• fixed bug with library unload upon read or write
• performance improvement in setting records for symbols

- R
Published by 0x17 over 2 years ago

transfer-r - v2.0.0

v2.0.0

- R
Published by 0x17 over 2 years ago

transfer-r - v1.18.0

GAMS Transfer R v1.18.0

• Symbol method isValid now checks also for scalars with more than one record entries
• bug fix in symbol description
• added isScalar property for the symbols of type Variable and Equation
• Symbol method getCardinality is removed
• Updated symbol method reorderUELs(). If the argument uels is not passed UELs are reordered based on the records
• Symbol method toDense() now requires domain UELs and domain records to be in the same order and unused UELs in the domain (if any) at the end of the UEL list
• Fixed the display of long error messages
• bug fix in accessing Container symbols in a case-insensitive manner
• bug fix in the Container method describeAliases
• Container read preserves the domain type from the source and avoids domain linking by symbol name

- R
Published by 0x17 over 2 years ago

transfer-r - v1.16.0

GAMS Transfer R v1.16.0

• added checks for singleton and multidimensional checksin Symbol method isValid()
• changed the default domain labels. User-specified domain labels are preserved if unique
• performance improvement in Container method read

- R
Published by 0x17 over 2 years ago

transfer-r - v1.14.0

GAMS Transfer R v1.14.0

• Significant performance improvements to Container write method
• bug fix in Container read when reading a Symbol with unused UELs
• bug fix in todense method for Symbol

- R
Published by 0x17 over 2 years ago

transfer-r - v1.12.0

GAMS Transfer R v1.12.0

• released for MacOS ARM64
• bug fix in writing empty container
• added Symbol method copy to copy symbol from one Container or ConstContainer to another Container
• added Container and ConstContainer method copy to copy symbols from to another
• bug fix in using ConstContainer Alias methods when the aliased parent set is absent

- R
Published by 0x17 over 2 years ago

transfer-r - v1.10.0

GAMS Transfer R v1.10.0

• performance improvement in read
• Partial domain forwarding is now allowed by passing a logical vector as the domainForwarding argument
• generateRecords method for Symbols to automatically generate records

- R
Published by 0x17 over 2 years ago

transfer-r - v1.8.0

GAMS Transfer R v1.8.0

• removeSymbols removes symbol links in other symbols
• added symbols argument to Container methods renameUELs and removeUELs
• findDuplicateRecords now returns a data frame instead of row indices
• Breaking: Container data field is now an ordered dictionary from collections package instead of named list. Instead of m$data$<symbolname>, use m[<symbolname>].
• performance improvement to Container method hasSymbols. This results in significant speed-ups when adding multiple symbols to the Container.
• added symbols argument to Container methods getDomainViolations, hasDomainViolations, countDomainViolations, dropDomainViolations, hasDuplicateRecords, countDuplicateRecords, dropDuplicateRecords, isValid, and write for partial operation.
• Container method getSymbols now always returns a list
• added equals method to Symbols to check if symbols are equal
• bug fix in SpecialValues$isNA
• bug fix in getUELs for scalar symbols
• bug fix in Symbol method isValid for symbols containing only NA
• bug fix in Variable and Equation set records for numeric inputs
• added equals method for Container and ConstContainer

- R
Published by 0x17 over 2 years ago

transfer-r - v1.6.0

GAMS Transfer R v1.6.0

• domain forwarding bug fix when the records are NULL
• describe* method bug fix when the type of symbol is not present in the Container
• added UniverseAlias symbol type for alias to the Universe
• renameUELs methods now have allowMerge argument for more data flexibility

- R
Published by 0x17 over 2 years ago

transfer-r - v1.4.0

GAMS Transfer R v1.4.0

• Breaking: Symbol name uniqueness is now checked case insensitively. For example, it is not possible to have two different symbols named symbol and Symbol or SYMBOL anymore
• Added a method Container$getSymbolNames to return the original symbol names for a list of symbol names of any case
• Added a method Container$hasSymbols to check if symbol name (case insensitive) exists
• Changed Container$getSymbols, Container$removeSymbols, Container$renameSymbol, Container$describe* and others that use Container$getSymbols to accept symbol names case insensitively
• New Symbol methods hasDuplicateRecords, countDuplicateRecords, findDuplicateRecords, and dropDuplicateRecords to help debug and resolve errors with duplicate records
• New Container methods hasDuplicateRecords, countDuplicateRecords, and dropDuplicateRecords to help find symbols that contain duplicate records that cause the Symbol to be invalid
• Raises an exception if attempting to read a symbol that does not exist in the data source (previously symbol names were silently ignored)
• New tests within Container$isValid() method to detect broken container references in symbols and inconsistent symbol naming between the <Container>$data field and the symbol objects
• Breaking: Symbol records and symbol names are treated in a case insensitive manner. Symbols domain is not automaitcally checked
• isValid method does not check for symbol record domain columns being factors, for duplicates, and for domain violations
• New Symbol methods hasDomainViolations, countDomainViolations, findDomainViolations, dropDomainViolations, getDomainViolations
• New Container methods hasDomainViolations, countDomainViolations, dropDomainViolations
• bug fix in Alias record setter
• bug fix in toDense() method for Symbols with domaintype other than regular
• allowed symbol overwriting with addSet/addParameter/addVariable/addEquation/addAlias methods when everything other than records and description is unchanged
• Added methods SpecialValues$isNA, SpecialValues$isEps, SpecialValues$isUndef, SpecialValues$isPosInf, SpcialValues$isNegInf to test for SpecialValues
• bug fix in count* methods for multiple columns
• The argument for where* methods changed from columns to column
• Changing the symbol domain now changes column names of records data.frame accordingly
• removed dependence on the package assertthat
• automatically remove trailing whitespaces from UELs in setRecords and *UEL methods

- R
Published by 0x17 over 2 years ago

transfer-r - v1.0.0

GAMS Transfer R v1.0.0

• added a new class ConstContainer for efficient data transfer
• allow read from Container/ConstContainer into another Container
• bug fix in listSets function that used to also list Aliases
• updated default_values in the Equation class
• updated Symbol isValid() method to check for levels of the linked domain set and symbol records
• bug fix in setting factor levels for subsets of subsets
• bug fix in countEPS method
• fixed record setter using non-dataframe object types for variables, equations, and parameters

- R
Published by 0x17 over 2 years ago

transfer-r - v0.2.0

GAMS Transfer R v0.2.0

• released binary packages on Windows and MacOS
• bug fixes and improvements

- R
Published by 0x17 over 2 years ago

transfer-r - v0.1.0

GAMS Transfer R v0.1.0

• first release

- R
Published by 0x17 over 2 years ago