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Wouter

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Everything posted by Wouter

  1. Thanks! Totally missed that. So who is currently the creator of OpenG? And is this maybe something I can do myself?
  2. First question, Is OpenG not available for LabVIEW NXG 5.0? When I try to install it via the NI Package Manager I see version 3. Then when I want to install it, I see that the NI Package Manager wants to install LabVIEW NXG 3.0... so I understand that OpenG is only available for LabVIEW NXG 5.0? Second question, (cross post from https://forums.ni.com/t5/LabVIEW/LabVIEW-NXG-Polymorphic-amp-Malleable-VI-s/m-p/4047507#M1160978) How can I create a polymorphic or malleable .giv in LabVIEW NXG? In NXG they are called "overloads" The only information I can find is: https
  3. If you want to know if your data is within population I think it would be best to simply calculate the mean, mean + 3*std and mean - 3std of all datasets and plot those along with your new dataset.
  4. Offtopic: You should use randomized data for a fair representation. Maybe the algorithm performs a lot better or a lot worse for certain values. Maybe the functionality posted in the OP functions a lot better for very large values. I would benchmark with random data which represents the full input range that could be expected. Furthermore I would also do the for-loop around 1 instance of the function. Then store the timings in array. Compute the mean, median, variance, standard deviation and show maybe a nice histogram :-) What is also nice to do, is by changing the input size for eac
  5. @Steen Schmidt you know that if that is your benchmark setup, that the benchmark is not fair right?
  6. Small note: there is a machine learning toolkit available, https://decibel.ni.com/content/docs/DOC-19328
  7. Wikipage about this: https://en.wikipedia.org/wiki/Publish%E2%80%93subscribe_pattern Further I was wondering, your current implementation does not support subscription to multiple different publishers (who have a different name) right? That would be a nice feature, another extension would be that you can also publish across a network.
  8. If it is a 2D array ánd it contains a lot of zero's you should consider using a sparse matrix datastructure.
  9. What do you mean with LU solver? Do you mean that this solves Ax = b using LU decomposition? Or does it do LU decomposition?
  10. http://www.planetpdf.com/codecuts/pdfs/ooc.pdf I think this might be a good book. It goes about OOP in ANSI-C.
  11. Hmmm... Using 2012 here and today I got the same error as described by the OP. I came to this topic by google.
  12. Don't the VI's give you the option to create X number of zip files? Each Y Bytes big? Like you see often? filename.rar0, filename.rar1, etc...
  13. http://www.random.org/ already provides the same functionality for several years. I wrote some VI's to get the random numbers/strings, https://decibel.ni.com/content/docs/DOC-13121
  14. Maybe we should create a library for parsing JSON, YAML and XML, with a abstract layer on top of it. All 3 are basically the same, they are human readable data serializations, with each of them their own benefits. More at http://en.wikipedia....eadable_formats Question; In what LabVIEW version is it written, 2009?
  15. Maybe this may interest the topic starter, http://halide-lang.org/. Paper: http://people.csail.mit.edu/jrk/halide12/halide12.pdf
  16. For computer science I would like to recommend the book. T.H. Cormen, C.E. Leiserson, R.L. Rivest and C. Stein. Introduction to Algorithms (3rd edition) MIT Press, 2009. ISBN 0-262-53305-7 (paperback) It is made by a few proffessors from MIT, you can also see colleges ocw.mit.edu/courses/electrical-engineering-and-computer-science/6-046j-introduction-to-algorithms-sma-5503-fall-2005/ ocw.mit.edu/courses/electrical-engineering-and-computer-science/6-006-introduction-to-algorithms-spring-2008/ You can also download the video colleges as torrent, torrentz.eu/search?f=introduction+to+algor
  17. http://en.wikipedia....lar_Expressions ^ Matches the starting position within the string. In line-based tools, it matches the starting position of any line.
  18. I'm not suprised by it. I actually also build a version which used the string subset but then i thought of the case that the string "test" may not be on the front in each case, then I just choose to create a more general solution.
  19. Yes you are totally correct. In the second run the memory is already allocated and hence does not need to be done anymore.
  20. I get a memory is full error for a size of 1 million Thats because proberbly some intern machine code results are cached.
  21. I played with this just now. Let me post my remarks. The tests where done with 1 million elements First off al the first method can be made much more efficient, by just preallocation the data. If the input has 10000 then you should also preallocate a array of 10000 elements for both the string array as the index array. Then after the loop you just split the array and hence remove the elements you didn't use. The first method, (500 ms), is then most times faster then the second method, (550 ms). However of course you can also apply this to the second method. Which makes the second faster b
  22. meh would rather see time being spend on making templates, like in C++, be made available for LabVIEW.
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