XPORT (.stx, .xpt)

  • Import fully supports the XPORT format.
  • Background

      MIME type: application/x-sas-xport
      SAS XPORT transport format.
      Legacy data exchange format.
      Stores numerical datasets in a portable format.
      Text format.
      Developed in the late 1980s by SAS Institute.

    Import and Export

    • Import["file.stx"] imports an XPORT file, returning all datasets arranged as a table.
    • Import["file.stx"] returns a table, representing each dataset as a column.
    • XPORT data is represented in the Wolfram Language by real or integer numbers, strings, Boolean values True and False, and DateList specifications.
    • Import["file.stx",elem] imports the specified element from an XPORT file.
    • Import["file.stx",{elem,suba,subb,}] imports a subelement.
    • Import["file.stx",{{elem1,elem2,}}] imports multiple elements.
    • The import format can be specified with Import["file","XPORT"] or Import["file",{"XPORT",elem,}].
    • See the reference pages for full general information on Import.
    • ImportString supports the XPORT format.

    Elements

    • 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
    • Data representation elements:
    • "Data"datasets arranged as a table
      "LabeledData"datasets given as a list of rules
    • Import uses the "Data" element by default.
    • Import["file.stx"] reads all datasets and returns them as a table.
    • Import["file.stx","LabeledData"] imports the entire file and returns an expression of the form {a1->col1,a2->col2,}, where the ai are the table headings.
    • Meta-information elements:
    • "Labels"dataset names given as a list of strings
      "Metadata"information about each dataset, given as a list of strings

    Options

    • Import option:
    • "EmptyField"""how empty cells are represented in the Wolfram Language

    Examples

    Basic Examples  (1)

    Import an XPT file from a website and return the labels of all datasets:

    In[1]:=
    Click for copyable input
    Out[1]=
    In[2]:=
    Click for copyable input
    Out[2]=

    Get the first few entries for the "LBDLDL" dataset:

    In[3]:=
    Click for copyable input
    Out[3]=

    Import two datasets and visualize them as a ListPlot:

    In[4]:=
    Click for copyable input
    In[5]:=
    Click for copyable input
    Out[5]=

    See Also

    "DBF"  "DIF"  "MAT"  "MPS"  "MTP"  "XLS"

    Introduced in 2007
    (6.0)