MATHEMATICA IMPORT/EXPORT 格式

MAT (.mat)

MATLAB MAT-files.
Matrix data format.
Native data format of the MATLAB numerical computation software.
Stores numerical matrices, Boolean values, or strings.
Binary format.
MAT Level 4 files are compatible with MATLAB Version 4 and lower, while MAT 5 files are compatible with MATLAB Version 5 and higher versions.

Import fully supports Versions 4 and 5 of the MAT format.

When appropriate, numerical data is imported as SparseArray objects.

Export generates MAT 4 files.

IMPORT 与 EXPORT

Import imports a MAT-file, returning an array.

Export exports any numeric array to a MAT-file.

Import["file.mat"] returns a multidimensional array containing numbers, strings, or Boolean values.

Export["file.mat", expr] creates a MAT-file from an array of integers or doubles.

Import imports the specified element from a MAT-file.

Import imports a subelement.

Import imports multiple elements.

The import format can be specified with Import["file", "MAT"] or Import.

Export creates a MAT-file by treating expr as specifying element elem.

Export treats each as specifying the corresponding .

Export exports expr with the specified option elements taken to have the specified values.

Export uses rules to specify the elements to be exported.

See the reference pages for full general information on Import and Export.

ImportString and ExportString support the MAT format.

参数

General Import elements:

	"Elements"	list of elements and options available in this file
	"Rules"	full list of rules for each element and option
	"Options"	list of rules for options, properties and settings