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Re: search routine [message #54385 is a reply to message #54240]

Fri, 01 June 2007 07:27

Paolo Grigis
Messages: 171
Registered: December 2003

Senior Member

Laurens wrote:
> Paolo Grigis wrote:
>>
>>
>> Laurens wrote:
>>> Hi folks,
>>>
>>> From Martin Schultz (posted in 1999) I found the following
>>> array-search algorithm which seems to do a fine job.
>>> Except that i'm not able to catch the first element in the array.
>>>
>>> Example:
>>>
>>> Array = [0,80,100,120,180,300]
>>> result = search, Array, 4.53
>>>
>>> It should return index 0, if I understand it correctly, but it
>>> returns 1 instead. Now I don't quite follow the logic of the
>>> function, so maybe someone for which it's easy to see can help me in
>>> the right direction?
>>
>> You could use the built-in function value_locate instead:
>>
>> result=value_locate(array,4.53)
>>
>> which returns 0.
>>
>> Ciao,
>> Paolo
>>
> though i'm noticing that it takes its ground number to be returned.
> If my array has [0,10,20,30] and i'm searching for 18, it will return
> 10. Now its just that would want to get 20 instead of 10 :)

well, in that case, just increase the index of the returned
value by one (though you'd better check that it wasn't the
*last* element...).

Ciao,
Paolo

>
> regards, Laurens

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[Message index]

		Search routines By: bowman on Fri, 18 September 1998 00:00
		Re: Search routines By: Martin Schultz on Mon, 21 September 1998 00:00
		Re: Search routines By: R. Bauer on Sat, 26 September 1998 00:00
		Re: search routine By: Laurens on Fri, 01 June 2007 06:42
		Re: search routine By: Paolo Grigis on Fri, 01 June 2007 07:27
		Re: search routine By: Laurens on Fri, 01 June 2007 06:38
		Re: search routine By: cmancone on Fri, 01 June 2007 06:34
		Re: search routine By: Paolo Grigis on Fri, 01 June 2007 07:23
		Re: search routine By: cmancone on Fri, 01 June 2007 06:32
		Re: search routine By: Paolo Grigis on Fri, 01 June 2007 07:20
		Re: search routine By: Paolo Grigis on Fri, 01 June 2007 06:11

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