Thread: Standard Deviation/Variance function development
Has anybodys grabbed development of a standard deviation/variance calculation function? If not, I am interested in tacking it on my todo list. What would be involved? That is, should it be written in C or in PL/PgSQL, or what? (I imagine that C would be fastest, no?) Cheers, dan
> > Has anybodys grabbed development of a standard deviation/variance > calculation function? > If not, I am interested in tacking it on my todo list. > > What would be involved? > That is, should it be written in C or in PL/PgSQL, or what? > (I imagine that C would be fastest, no?) It is marked with a dash, meaning it is done and will be in 7.1. -- Bruce Momjian | http://candle.pha.pa.us pgman@candle.pha.pa.us | (610) 853-3000 + If your life is a hard drive, | 830 Blythe Avenue + Christ can be your backup. | Drexel Hill, Pennsylvania 19026
On Tue, Mar 06, 2001 at 09:15:15PM -0500, some SMTP stream spewed forth: > > > > Has anybodys grabbed development of a standard deviation/variance > > calculation function? > > If not, I am interested in tacking it on my todo list. > > > > What would be involved? > > That is, should it be written in C or in PL/PgSQL, or what? > > (I imagine that C would be fastest, no?) > > It is marked with a dash, meaning it is done and will be in 7.1. Hehe, I suppose actually /reading/ would be a good start, eh? Thanks for the clue-smack. Now I have to find something else to do. dan > > -- > Bruce Momjian | http://candle.pha.pa.us > pgman@candle.pha.pa.us | (610) 853-3000 > + If your life is a hard drive, | 830 Blythe Avenue > + Christ can be your backup. | Drexel Hill, Pennsylvania 19026 ---------------------------(end of broadcast)--------------------------- TIP 4: Don't 'kill -9' the postmaster
On Tue, Mar 06, 2001 at 09:15:15PM -0500, some SMTP stream spewed forth: > > > > Has anybodys grabbed development of a standard deviation/variance > > calculation function? > > If not, I am interested in tacking it on my todo list. > > > > What would be involved? > > That is, should it be written in C or in PL/PgSQL, or what? > > (I imagine that C would be fastest, no?) > > It is marked with a dash, meaning it is done and will be in 7.1. Hehe, I suppose actually /reading/ would be a good start, eh? Thanks for the clue-smack. Now I have to find something else to do. dan > > -- > Bruce Momjian | http://candle.pha.pa.us > pgman@candle.pha.pa.us | (610) 853-3000 > + If your life is a hard drive, | 830 Blythe Avenue > + Christ can be your backup. | Drexel Hill, Pennsylvania 19026 ---------------------------(end of broadcast)--------------------------- TIP 4: Don't 'kill -9' the postmaster