bounds — setting estimation bounds
[]=bounds(b1,b2, , b2n-1,b2n)
a series of dates strings
Nothing: the bounds are transferred to the upper level in a (p x 1) vector by the argument resume
bounds('1964q3','1989q2') //example taken from hendryericsson_d: bounds range from the first quarter of 1963 to the third quarter of 1989. bounds('1990f52p1','1999f52d26') // bounds brange from the first week ('f52' indicates that the frequency is set to 52) of 1990 until the 26th week of 1999. bounds('1901a','1913a', '1919a','1939a', '1946a','2000a') // bounds cover all the 20th century years, the period of the first (years 1914 to 1918) and second (years 1940 to 1945) world wars being excluded.