businessQuarterBegin
Syntax
businessQuarterBegin(X, [startingMonth=1], [offset], [n=1])
Arguments
X is a scalar/vector of data type DATE, DATEHOUR, DATETIME, TIMESTAMP or NANOTIMESTAMP.
startingMonth (optional) is an integer between 1 and 12 indicating a month. The default value is 1.
offset (optional) is a scalar of the same data type as X. It must be no greater than the minimum value of X. The default value is the minimum value of X.
n (optional) is a positive integer. The default value is 1.
Details
Return the first business day (Monday to Friday) of the quarter that X belongs to. The first months of the quarters are determined by startingMonth. Note that startingMonth=1 is equivalent to startingMonth=4, 7 or 10.
If parameter offset is specified, the result is updated every n quarters. Parameter offset works only if parameter n>1.
Examples
businessQuarterBegin(2012.06.12);
// output
2012.04.02
businessQuarterBegin(2012.06.12, 3);
// output
2012.06.01
businessQuarterBegin(2012.06.12, 8, 2011.08.01, 3);
// output
2012.05.01
date=2011.04.25+(1..10)*90
time = take(09:30:00, 10)
sym = take(`MSFT,10)
price= 49.6 29.46 29.52 30.02 174.97 175.23 50.76 50.32 51.29 52.38
qty = 2200 1900 2100 3200 6800 5400 1300 2500 8800 4500
t1 = table(date, time, sym, qty, price);
t1;
date | time | sym | qty | price |
---|---|---|---|---|
2011.07.24 | 09:30:00 | MSFT | 2200 | 49.6 |
2011.10.22 | 09:30:00 | MSFT | 1900 | 29.46 |
2012.01.20 | 09:30:00 | MSFT | 2100 | 29.52 |
2012.04.19 | 09:30:00 | MSFT | 3200 | 30.02 |
2012.07.18 | 09:30:00 | MSFT | 6800 | 174.97 |
2012.10.16 | 09:30:00 | MSFT | 5400 | 175.23 |
2013.01.14 | 09:30:00 | MSFT | 1300 | 50.76 |
2013.04.14 | 09:30:00 | MSFT | 2500 | 50.32 |
2013.07.13 | 09:30:00 | MSFT | 8800 | 51.29 |
2013.10.11 | 09:30:00 | MSFT | 4500 | 52.38 |
select avg(price),sum(qty) from t1 group by businessQuarterBegin(date, 10, 2010.10.01, 2);
businessQuarterBegin_date | avg_price | sum_qty |
---|---|---|
2011.04.01 | 49.6 | 2200 |
2011.10.03 | 29.49 | 4000 |
2012.04.02 | 102.495 | 10000 |
2012.10.01 | 112.995 | 6700 |
2013.04.01 | 50.805 | 11300 |
2013.10.01 | 52.38 | 4500 |
Related functions: businessQuarterEnd, quarterBegin, quarterEnd