dtMinute¶

Purpose¶

Extracts the minute component from a date/time variable as a number (0-59).

Format¶

minutes = dtMinute(X[, column])¶

Parameters:

X (TxK dataframe) – Data with metadata.
column (Scalar or string) – Optional, name or index of the date variable in X to get minutes from. Default = first column.

Returns:

minutes (Tx1 vector) – The minutes of the dates in the column specified by column.

Examples¶

Example 1¶

// Create a date
date_df = asDate("2008-02-16 18:36:29", "%Y-%m-%d %H:%M:%S");

// Get minutes
dtMinute(date_df);

This extracts the minute component:

Example 2¶

// Load data and convert TIMESTAMP
// to a date variable. The %s tells GAUSS
// that it is stored as seconds since
// Jan 1, 1970
fname = getGAUSSHome("examples/usd_cad_2018.dat");
usd_cad = loadd(fname, "date(TIMESTAMP, %s) + BIDPRICE");

// Select the first 5 rows
usd_cad = head(usd_cad);

// Convert printing format
usd_cad[.,"TIMESTAMP"] = setcoldateformats(usd_cad[.,"TIMESTAMP"], "%Y-%m-%d %T");

print usd_cad;

       TIMESTAMP         BIDPRICE
2018-01-01 17:00        1.2550500
2018-01-01 17:03        1.2551500
2018-01-01 17:03        1.2551800
2018-01-01 17:03        1.2551900
2018-01-01 17:04        1.2552000

// Get the number of minutes past the hour
// for the TIMESTAMP variable
m = dtMinute(usd_cad, "TIMESTAMP");
print m;