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confused multiplying arrays [message #73482]

Thu, 11 November 2010 13:11

paulartcoelho
Messages: 30
Registered: March 2007

Member

hello,

i've got two arrays:

IDL> help,area,fluxes
AREA FLOAT = Array[2000]
FLUXES FLOAT = Array[2000, 112864]

I want the i-th element in area AREA[i] to multiply all elements in
the corresponding 2nd dimension in fluxes FLUXES[i,*] and then sum up
all the 2000 resulting fluxes, i.e., using loop:

for i = 0,1999 do begin
TOTAL_FLUX = TOTAL_FLUX + AREA[i]*reform(FLUXES[i,*])
endfor

i've been trying to figure out (without success) how to compute
TOTAL_FLUX without the loop using TOTAL(). ideas?

thx
p.

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[Message index]

		confused multiplying arrays By: paulartcoelho on Thu, 11 November 2010 13:11
		Re: confused multiplying arrays By: penteado on Fri, 12 November 2010 08:21
		Re: confused multiplying arrays By: paulartcoelho on Fri, 12 November 2010 08:10
		Re: confused multiplying arrays By: David Gell on Fri, 12 November 2010 06:30

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