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Bug in rebin function [message #6079] Thu, 28 March 1996 00:00
Evan F. Fishbein is currently offline  Evan F. Fishbein
Messages: 6
Registered: February 1995
Junior Member
In versions { sparc sunos 3.6.1c} and { x86 linux unix 4.0.1}
the following code gives a surprising answer

x=lindgen(1, 1000)*2l^16
x1=rebin(x, 32, 1000)
x1=x1(0,*)
dx = x1-x
plot, dx


The answer should be that dx is everywhere 0, but is not. The first number
where dx is not zero is 2l^25, so, obviously rebin is losing the significant
byte of the long field. As an aside,
dx = x-(long(rebin(float(x),32,1000)))(0,*)
is indeed zero everywhere.

Evan

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