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Re: For loop avoidance - getting indices of real space [message #81451 is a reply to message #81226]

Fri, 21 September 2012 13:06

simulana
Messages: 15
Registered: August 2012

Junior Member

On Tuesday, August 28, 2012 5:41:29 PM UTC-4, JDS wrote:
> On Thursday, August 23, 2012 4:58:48 PM UTC-4, simu...@gmail.com wrote:
>
>> I have read and re-read until cross-eyed this post: http://www.idlcoyote.com/tips/forloops.html
>
>
>
> Just for the record, that particular post was made almost entirely in jest: sometimes a for loop is indeed what you want.
>
>
>
> JD

*Almost* entirely you say, but in my case entirely accurate. I reduced the runtime of my code from 10 minutes to 2 minutes by using the above arrays to find my indices instead of for loops, which seems significant to me, considering I need to run it over and over again. I was getting really bored.

In general I find that it's easy to loose focus on a problem if your runtime is approximately between 4 min - 2 hours. You feel like it's too short of a time to switch focus to another project and be productive at all. So, yay for code optimization.

In response to Yngvar:

I also had the problem that I had to add a constant value to each i,j,k specified by another array xBounds that gives the lower left corner of each grid. Since I was basically concatenating all the data from each grid, I could figure out how to add this lower left corner value to each data point before the reform.

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[Message index]

		For loop avoidance - getting indices of real space By: simulana on Thu, 23 August 2012 13:58
		Re: For loop avoidance - getting indices of real space By: JDS on Tue, 28 August 2012 14:41
		Re: For loop avoidance - getting indices of real space By: simulana on Fri, 21 September 2012 13:06

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