rnseloader

Retrieve data from Machine Readable News from LSEG Data & Analytics sentiment archive file

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    Syntax

    x = rnseloader(file)
    x = rnseloader(file,Name=Value)

    Description

    x = rnseloader(file) retrieves data from the Machine Readable News sentiment archive file, and outputs the structure x.

    x = rnseloader(file,Name=Value) specifies optional name-value arguments to customize how you retrieve the data. For example, rnseloader(file,"start",10000) returns data starting at record number 1000.

    example

    Examples

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    This example shows how you can use multiple name-value arguments to customize the data structure returned by rnseloader.

    Retrieve up to 100000 records from "file.csv", for the securities "ABC.N" and "XYZ.O", with date stamps between and including "02/02/2007" and "02/03/2007".

    x = rnseloader('file.csv','records',100000,...
               'date',{'02/02/2007','02/03/2007'},...
               'security',{'ABC.N','XYZ.O'})
    Input Arguments
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    Machine Readable News sentiment archive file, specified as a string scalar or
            character vector.
    Name-Value Arguments
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    Specify optional pairs of arguments as
      Name1=Value1,...,NameN=ValueN, where Name is
      the argument name and Value is the corresponding value.
      Name-value arguments must appear after other arguments, but the order of the
      pairs does not matter.
    
    Example: rnseloader(file,"security","F.N","start",10000)
    Date stamp to retrieve data from, specified as a string scalar, character vector,
              cell array, or numeric scalar. For example,
                rnseloader("file.csv","date",{'02/02/2007'}) returns data from a
              single date stamp, while
                rnseloader("file.csv","date",{'02/02/2007','02/03/2007'})
              retrieves data between two specified date stamps, inclusive.
    List of securities to retrieve data for, specified as a string scalar or cell
              array. For instance, rnseloader("file.csv","security",{'XYZ.O'})
              retrieves data for the security 'XYZ.O' from the specified
              file.
    Starting record number to retrieve data from, specified as a numeric scalar. For
              instance, rnseloader("file.csv","start",10000) retrieves data from
              the specified file starting at record 10000.
    Number of records to retrieve from start of file, specified as a numeric scalar.
              For example, rnseloader("file.csv","records",10000) retrieves the
              first 10000 records from the specified file.
    Field names to retrieve, specified as a string scalar or character vector. For
              instance, rnseloader("file.csv","fieldnames",{'ITEM_ID'}) retrieves
              only the specified field, 'ITEM_ID' from the specified file.
    Version History
    Introduced in R2008b