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AlphaChannelQ[image] returns True if the image has an alpha channel
CreateWikiDocumentation[directory,context] creates wiki pages for the symbols in the given context
DatasetImport[file, ...] evaluates as Dataset[Import[ file, ...]]
DatasetImportFiles[files, ...] evaluates as Map[Dataset, ImportFiles[files, ...]]
DatasetMap[func, expr] evaluates as Dataset[AssociationMap[func, expr]]
DirectoryByteCount[dir] returns the byte count for directory 'dir'
DirectorySize[dir] returns the byte count for 'dir' as a quantity
GetFiles[files] evaluates as Map[Get, files]
Image3DCubeQ[image] returns True if the image width, height, and depth are all equal
ImageStrictlyPortraitQ[image] returns True if the image width is greater than or equal to the image height
ImageStrictlyPortraitQ[image] returns True if the image width is less than or equal to the image height
ImageStrictlyPortraitQ[image] returns True if the image width is equal to the image height
ImageStrictlyPortraitQ[image] returns True if the image width is greater than the image height
ImageStrictlyPortraitQ[image] returns True if the image width is less than the image height
ImportDirectory[dir] imports all files in 'dir'. ImportDirectory[dir,patt] imports all files that match string pattern 'patt'
ImportFiles[files, ...] evaluates as Map[Import, files]
InformationDataset[ pattern ] gives usage information for functions matching the string pattern
RandomGeoPosition[] picks a random geo position
SystemStringOpen[string] determines the file format for 'string' and opens it with the default application
$ExtensionToFormat associates file extensions with their format name
$FormatToExtension associates a file format with its list of supported file extensions
$InputDirectoryName is the directory name for the current value of $InputFileName