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Re: generating sequences [message #85843 is a reply to message #85842]

Fri, 13 September 2013 12:29

spluque
Messages: 33
Registered: September 2013

Member

On Friday, September 13, 2013 2:10:40 PM UTC-5, Mats Löfdahl wrote:
> On 2013-09-13 21:01, spluque@gmail.com wrote:
>
>> Hi,
>
>>
>
>> I thought this should be very easy, but I cannot find how to do it IDL. Say we have a vector with a few starting values:
>
>>
>
>> a=[1, 12, 90]
>
>>
>
>> and we want to generate sequences of 3 numbers starting with these values, so that we end up with:
>
>>
>
>> [1, 2, 3, 12, 13, 14, 90, 91, 92]
>
>>
>
>> How is this done in IDL?
>
>
>
> IDL> print,reform(transpose([[a],[a+1],[a+2]]),9)
>
> 1 2 3 12 13 14 90 91 92

What if the sequence for each starting value was 1000 instead of 3?...

I'm surprised one can't just do:

print, a + indgen(3)

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[Message index]

		generating sequences By: spluque on Fri, 13 September 2013 12:01
		Re: generating sequences By: Mats Löfdahl on Fri, 13 September 2013 12:10
		Re: generating sequences By: spluque on Fri, 13 September 2013 12:29
		Re: generating sequences By: Mats Löfdahl on Fri, 13 September 2013 12:56
		Re: generating sequences By: spluque on Fri, 13 September 2013 13:36

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