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Cumulative total [message #12870]

Thu, 17 September 1998 00:00

bowman
Messages: 121
Registered: September 1991

Senior Member

Can anyone suggest a more efficient way to compute the running cumulative
total of a 1-D array than using FOR loops? That is, a built-in function
or array operator to compute as follows:

n = 100L
f = FINDGEN(n) ;Just an example
f_cum = FLTARR(n)
f_cum[0L] = f[0L]
FOR i = 1L, n-1 DO f_cum[i] = f_cum[i-1L] + f[i]

Thanks, Ken Bowman

--
Dr. Kenneth P. Bowman, Professor 409-862-4060
Department of Meteorology 409-862-4466 fax
Texas A&M University bowmanATcsrp.tamu.edu
College Station, TX 77843-3150 Replace AT with @

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[Message index]

		Cumulative total By: bowman on Thu, 17 September 1998 00:00
		Re: Cumulative total By: Thomas A. McGlynn on Thu, 24 September 1998 00:00
		Re: Cumulative total By: Martin Schultz on Mon, 21 September 1998 00:00
		Re: Cumulative total By: davidf on Fri, 18 September 1998 00:00

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