history

Request CQG historical data

Syntax

history(c,s,startdate,enddate,period)

history(c,s,startdate,enddate,period,x)

Description

history(c,s,startdate,enddate,period) requests CQG^® historical data asynchronously with bar size period between startdate and enddate for CQG instrument name s with CQG connection c.

history(c,s,startdate,enddate,period,x) requests CQG historical data asynchronously with additional request properties x.

Examples

Request CQG Historical Data

To request daily historical data for an instrument, create the connection c using cqg and startUp. Register an event handler for tracking events associated with connection status. Set up the API configuration properties. Then, register an event handler for tracking events associated with building and initializing the output data structure. For an example demonstrating these activities, see Request CQG Historical Data. See CQG API Reference Guide to learn more about event handlers and the API configuration properties.

Request historical daily data for instrument XYZ.XYZ for the last 10 days. XYZ.XYZ is a sample instrument name. To request historical data for your instrument, substitute the symbol name in instrument.

instrument = {'Close(XYZ.XYZ)','Open(XYZ.XYZ)'};
startdate = floor(now) - 10;
enddate = floor(now);
period = 'hpDaily';

history(c,instrument,startdate,enddate,period)
pause(1)

MATLAB^® writes variable cqgHistoryData to the Workspace browser.

Display cqgHistoryData.

cqgHistoryData

cqgHistoryData =
   1.0e+05 *
    7.3533    0.0063    0.0063
    7.3533    0.0064    0.0064
    7.3533    0.0065    0.0065
    7.3534    0.0065    0.0065
    7.3534    0.0066    0.0066
    7.3534    0.0065    0.0065
    7.3534    0.0066    0.0066
    7.3534    0.0066    0.0066
    7.3534    0.0064    0.0064

Each row in cqgHistoryData represents data for 1 day. The columns in cqgHistoryData show the numerical representation of the timestamp, the close price, and the open price for the instrument during the day.

Close the CQG connection.

close(c)

Request CQG Historical Data with Additional Request Properties

To request daily historical data for an instrument with an additional property, create the connection c using cqg and startUp. Register an event handler for tracking events associated with connection status. Set up the API configuration properties. Then, register an event handler for tracking events associated with building and initializing the output data structure. For an example demonstrating these activities, see Request CQG Historical Data. See CQG API Reference Guide to learn more about event handlers and the API configuration properties.

Pass an additional optional request property by creating the structure x and setting the optional property.

x.UpdatesEnabled = false;

For additional optional properties you can set, see CQG API Reference Guide.

Request historical daily data for instrument XYZ.XYZ for the last 10 days using the additional optional request property x. XYZ.XYZ is a sample instrument name. To request historical data for your instrument, substitute the symbol name in instrument.

instrument = {'Close(XYZ.XYZ)','Open(XYZ.XYZ)'};
startdate = floor(now) - 10;
enddate = floor(now);
period = 'hpDaily';

history(c,instrument,startdate,enddate,period,x)
pause(1)

MATLAB writes the variable cqgHistoryData to the Workspace browser.

Display cqgHistoryData.

cqgHistoryData

cqgHistoryData =
   1.0e+05 *
    7.3533    0.0063    0.0063
    7.3533    0.0064    0.0064
    7.3533    0.0065    0.0065
    7.3534    0.0065    0.0065
    7.3534    0.0066    0.0066
    7.3534    0.0065    0.0065
    7.3534    0.0066    0.0066
    7.3534    0.0066    0.0066
    7.3534    0.0064    0.0064

Each row in cqgHistoryData represents data for 1 day. The columns in cqgHistoryData show the numerical representation of the timestamp, the close price, and the open price for the instrument during the day.

Close the CQG connection.

close(c)

Input Arguments

c — CQG connection

connection object

CQG connection, specified as a CQG connection object created using cqg.

s — CQG instrument name

character vector | string scalar

CQG instrument name, specified as a character vector or string scalar that identifies the instrument or security. For a list of CQG instrument names, see Tradable Symbols.

Data Types: char | string

startdate — Start date

character vector | string scalar | numeric scalar

Start date, specified as a character vector, string scalar, or numeric scalar.

Data Types: double | char | string

enddate — End date

character vector | string scalar | numeric scalar

End date, specified as a character vector, string scalar, or numeric scalar.

Data Types: double | char | string

period — Bar size

'hpDaily' (default) | 'hpWeekly' | 'hpMonthly' | 'hpQuarterly' | 'hpSemiannual' | 'hpYearly'

Bar size, specified as one of the above values predetermined by the CQG API that denotes the length of time to collect data.

x — CQG request properties

request properties structure

CQG request properties, specified as a CQG request properties structure. Create this structure by writing MATLAB code to set additional optional request properties. For additional optional properties you can set, see CQG API Reference Guide.

Example: x.UpdatesEnabled = false;

Data Types: struct

Version History

Introduced in R2013b