haverdirect

Create Haver Analytics DLX Direct cloud connection

Since R2024a

Description

The haverdirect function creates a connection to a cloud instance of a Haver Analytics^® database. Once you have created a haverdirect object, you can retrieve all historical data for a variable or historical data for a specific date range.

From MATLAB^®, you can retrieve data by following these steps:

1. Create a Haver DLX Direct connection by using the haverdirect function.

2. List variables by using the info function.

3. Retrieve data by using the fetch function.

Creation

Syntax

c = haverdirect(databasename)

Description

c = haverdirect(databasename) creates a connection to a cloud instance of a Haver Analytics database.

Input Arguments

databasename — Database name

character vector | string scalar

Database name, specified as a character vector or string scalar. This argument sets the DatabaseName property.

Example: "USECON"

Properties

DatabaseName — Database name

character vector | string scalar

Database name, specified as a character vector or string scalar. This property is set by the databasename argument.

DatetimeType — Date and time data type

" " (default) | "datetime"

Date and time data type, specified as a " " or "datetime". When you create a haverdirect object, the haverdirect function leaves this property unset. You can use dot notation to set this property manually.

Example: c = haverdirect("USECON"); c.DatetimeType = "datetime"

DataReturnFormat — Data return format

" " (default) | "table" | "timetable"

Data return format of the retrieved data, specified as " ", "table", or "timetable". When you create a haverdirect object, the haverdirect function leaves this property unset. You can use dot notation to set this property manually.

Example: c = haverdirect("USECON"); c.DataReturnFormat = "timetable"

Object Functions

aggregation	Set Haver Analytics aggregation mode
fetch	Request data from Haver Analytics database
get	Retrieve properties from Haver Analytics connection objects
info	Retrieve information about Haver Analytics variables
isconnection	Determine if connections to Haver Analytics data servers are valid
nextinfo	Retrieve information about next Haver Analytics variable
close	Close Haver Analytics database

Examples

Create Haver DLX Direct Connection

Create a connection to a Haver Analytics database by specifying a valid database name. In this example, replace USECON with the name of your database.

databasename = "USECON";
c = haverdirect(databasename)

c = 

  haverdirect with properties:

        DatabaseName: "USECON"
        DatetimeType: ''
    DataReturnFormat: ''

Version History

Introduced in R2024a