fy5253Quarter

fy5253Quarter(X, [weekday=0], [startingMonth=1], [qtrWithExtraWeek=1], [nearest=true], [offset], [n=1])

X is a scalar/vector, its type can be DATE, DATETIME, TIMESTAMP, NANOTIMESTAMP.

weekday (optional) is an integer between 0 and 6. 0 means Monday, 1 means Tuesday, …, and 6 means Sunday. The default value is 0.

startingMonth (optional) is an integer between 1 and 12 indicating the beginning month of the year. The default value is 1.

qtrWithExtraWeek (optional) is an integer between 1 to 4. If there is a leap quarter (usually the quarter contains 13 weeks, but the leap quarter contains 14 weeks ), it indicates the leap quarter.

nearest (optional) is a Boolean value with the default value of true.

offset (optional) is a scalar with the same data type as X. It must be smaller than the minimum value in X. The default value is the minimum value in X.

n (optional) is a positive integer. The default value is 1.

Using the 52-53 week in fiscal year (4-4-5 calendar), this function returns the start date of fiscal year which includes X.

• If nearest=true, the last weekday which is closest to the last day of startingMonth will be used as the starting date of the fiscal year.

• If nearest=false, the last weekday in startingMonth will be used as the starting date of the fiscal year.

If the offset is specified, indicating that starting from the offset, the result will be updated every n years. Note that only when n is greater than 1, the offset can take effect.

fy5253Quarter(2019.12.01,0,1,1,true);
// output
2019.11.04

fy5253Quarter(2019.12.01,0,1,4,true);
// output
2019.10.28   // The start date of the fiscal year 2019 is 2019.01.28. For the fiscal year 2020 it is 2020.02.03. The difference between them is 53 weeks, suggesting the existence of a leap quarter. qtrWithExtraWeek=1 means the first quarter is a leap quarter, which contains 14 weeks, so the start date of the quarter including 2019.12.01 is 2019.11.01; qtrWithExtraWeek=4 means that the fourth quarter is a leap season, which contains 14 weeks, so the start date of the quarter including 2019.12.01 is 2019.10.28.

date=2016.01.12 2016.02.25 2016.05.12 2016.06.28 2016.07.10 2016.08.18 2016.09.02 2016.10.16 2016.11.26 2016.12.30
time = [09:34:07,09:36:42,09:36:51,09:36:59,09:32:47,09:35:26,09:34:16,09:34:26,09:38:12,09:38:13]
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);

select avg(price),sum(qty) from t1 group by fy5253Quarter(date,0,1,1,true,2016.01.01,2);

Related function: fy5253