Skip to content
Arnoud Buzing edited this page Jan 17, 2018 · 21 revisions

AlphaChannelQ

AlphaChannelQ[image] returns True if the image has an alpha channel

BuildPaclet

BuildPaclet::usage

BuildWikiDocumentation

BuildWikiDocumentation[directory,context] creates wiki pages for the symbols in the given context

By

By[head, data, func] evaluates as head[Map[func,data]]

CommonestBy

CommonestBy[data, func] computes the commonest value of 'data' by using 'func'

DatasetImport

DatasetImport[file, ...] evaluates as Dataset[Import[ file, ...]]

DatasetImportFiles

DatasetImportFiles[files, ...] evaluates as Map[Dataset, ImportFiles[files, ...]]

DatasetMap

DatasetMap[func, expr] evaluates as Dataset[AssociationMap[func, expr]]

DirectoryByteCount

DirectoryByteCount[dir] returns the byte count for directory 'dir'

DirectorySize

DirectorySize[dir] returns the byte count for 'dir' as a quantity

GetFiles

GetFiles[files] evaluates as Map[Get, files]

Image3DCubeQ

Image3DCubeQ[image] returns True if the image width, height, and depth are all equal

ImageCropResize

ImageCropResize[image, dims] crops and resize an image to the specified dimensions

ImageLandscapeQ

ImageStrictlyPortraitQ[image] returns True if the image width is greater than or equal to the image height

ImagePortraitQ

ImageStrictlyPortraitQ[image] returns True if the image width is less than or equal to the image height

ImageSquareQ

ImageStrictlyPortraitQ[image] returns True if the image width is equal to the image height

ImageStrictlyLandscapeQ

ImageStrictlyPortraitQ[image] returns True if the image width is greater than the image height

ImageStrictlyPortraitQ

ImageStrictlyPortraitQ[image] returns True if the image width is less than the image height

ImportDirectory

ImportDirectory[dir] imports all files in 'dir'. ImportDirectory[dir,patt] imports all files that match string pattern 'patt'

ImportFiles

ImportFiles[files, ...] evaluates as Map[Import, files]

InformationDataset

InformationDataset[ pattern ] gives usage information for functions matching the string pattern

MaxBy

MaxBy[data, func] computes the maximum value of 'data' by using 'func'

MeanBy

MeanBy[data, func] computes the mean of 'data' by using 'func'

MedianBy

MedianBy[data, func] computes the median of 'data' by using 'func'

MinBy

MinBy[data, func] computes the minimum value of 'data' by using 'func'

PacletInformationDataset

PacletInformationDataset[paclet] returns paclet information as a dataset

RandomGeoPosition

RandomGeoPosition[] picks a random geo position

Rarest

Rarest[data] computes the rarest (least common) values of 'data'

RarestBy

RarestBy[data, func] computes the rarest (least common) values of 'data' by using 'func'

StandardDeviationBy

StandardDeviationBy[data, func] computes the standard deviation of 'data' by using 'func'

SystemStringOpen

SystemStringOpen[string] determines the file format for 'string' and opens it with the default application

ToStringFileName

ToStringFileName[file] rewrites file as a classical string filename

URLHash

URLHash[url] gives the hash for the content stored at the url

VarianceBy

VarianceBy[data, func] computes the variance of 'data' by using 'func'

$ExtensionToFormat

$ExtensionToFormat associates file extensions with their format name

$FormatToExtension

$FormatToExtension associates a file format with its list of supported file extensions

$InputDirectoryName

$InputDirectoryName is the directory name for the current value of $InputFileName

Clone this wiki locally