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Finding NaNs in arrays - Strange outcome [message #92382]

Sat, 05 December 2015 04:02

dmfl0590
Messages: 17
Registered: December 2015

Junior Member

Hello

I have a 3D array A ( A FLOAT = Array[480, 480, 160]). I wanted to check for NaNs so I had split one 2D array as follows:

A1 = total(A[0:79, 0:79,25])
A2 = total(A[80:159,80:159,25])
A3 = total(A[160:239,160:239,25])
A4 = total(A[240:319,240:319,25])
A5 = total(A[320:399,320:399,25])
A6 = total(A[400:479,400:479,25])

print, 'A1', A1
print, 'A2', A2
print, 'A3', A3
print, 'A4', A4
print, 'A5', A5
print, 'A6', A6

print, 'total',total(A[*,*,25])

PRINT, 'sum',A1+A2+A3+A4+A5+A6

I got the following print results:
A1 682066.
A2 1.51149e+007
A3 9.41048e+006
A4 9.07705e+006
A5 1.18558e+007
A6 62705.1
total NaN
sum 4.62031e+007

Why the total(A[*,*,25]) gave me NaN? Isn't the same thing as the sum?

Can anyone help with this?

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[Message index]

		Finding NaNs in arrays - Strange outcome By: dmfl0590 on Sat, 05 December 2015 04:02
		Re: Finding NaNs in arrays - Strange outcome By: David Fanning on Sat, 05 December 2015 06:38
		Re: Finding NaNs in arrays - Strange outcome By: dmfl0590 on Sat, 05 December 2015 08:16
		Re: Finding NaNs in arrays - Strange outcome By: dmfl0590 on Sat, 05 December 2015 08:24
		Re: Finding NaNs in arrays - Strange outcome By: David Fanning on Sat, 05 December 2015 08:46
		Re: Finding NaNs in arrays - Strange outcome By: dmfl0590 on Sat, 05 December 2015 10:05
		Re: Finding NaNs in arrays - Strange outcome By: David Fanning on Sat, 05 December 2015 10:40
		Re: Finding NaNs in arrays - Strange outcome By: wlandsman on Sat, 05 December 2015 13:24
		Re: Finding NaNs in arrays - Strange outcome By: dmfl0590 on Mon, 07 December 2015 03:35

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