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Looping over odd values only [message #93028]

Wed, 13 April 2016 04:48

omar ali
Messages: 13
Registered: December 2015

Junior Member

Hi,
I need to make a for loop over odd values only. for example
for n=0, 15 do begin
If n eq odd value (1, 3, 5, ... etc) then begin
calculations
endif
endfor

Thanks in advance,

Omar

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Re: Looping over odd values only [message #93029 is a reply to message #93028]

Wed, 13 April 2016 04:53

wlandsman
Messages: 743
Registered: June 2000

Senior Member

IDL> for i=1,15,2 do print,i
1
3
5
7
9
11
13
15

On Wednesday, April 13, 2016 at 7:48:47 AM UTC-4, omar ali wrote:
> Hi,
> I need to make a for loop over odd values only. for example
> for n=0, 15 do begin
> If n eq odd value (1, 3, 5, ... etc) then begin
> calculations
> endif
> endfor
>
> Thanks in advance,
>
> Omar

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Re: Looping over odd values only [message #93030 is a reply to message #93029]

Wed, 13 April 2016 05:29

omar ali
Messages: 13
Registered: December 2015

Junior Member

بتاريخ الأربعاء، 13 أبريل، 2016 1:53:06 م UTC+2، كتب wlandsman:
> IDL> for i=1,15,2 do print,i
> 1
> 3
> 5
> 7
> 9
> 11
> 13
> 15
>
> On Wednesday, April 13, 2016 at 7:48:47 AM UTC-4, omar ali wrote:
>> Hi,
>> I need to make a for loop over odd values only. for example
>> for n=0, 15 do begin
>> If n eq odd value (1, 3, 5, ... etc) then begin
>> calculations
>> endif
>> endfor
>>
>> Thanks in advance,
>>
>> Omar

Thanks wlandsman, it works

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Re: Looping over odd values only [message #93034 is a reply to message #93028]

Wed, 13 April 2016 08:09

Paul Van Delst[1]
Messages: 1157
Registered: April 2002

Senior Member

On 04/13/16 07:48, omar ali wrote:
> Hi,
> I need to make a for loop over odd values only. for example
> for n=0, 15 do begin
> If n eq odd value (1, 3, 5, ... etc) then begin
> calculations
> endif
> endfor
>
> Thanks in advance,

Your question has been answered, but the Harris Docs Center is pretty
good too. See http://www.harrisgeospatial.com/docs/FOR.html

cheers,

paulv

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