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Mars Su

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Everything posted by Mars Su

  1. Hello Lava fellows, I found that LabVIEW is not so intelligent at data import compared to Matlab.(Just personal view! ) I got a set of data stored in txt file. The good thing is that it's pure numeric data, but the bad thing is that the delimiters between columns are not uniform, sometimes space, sometimes tab. Then I try to import the data with LabVIEW. I tried 2 ways. 1. load in data by "read from spreadsheet". This doesn't work 2. load in data by "read from txt file", then "string to spreadsheet array", it failed again. I guess the problem is that the delimiter symbol is not consistent. Then I give up and turn to Matlab, just one use command "load" that's all. The data is imported and stored as a 2d array. Of course I can first read the txt file and then use string functions to replace all the space with tab (the worst thing is that even the number of space between columns are not equivalent.) and then convert string to array. But this is really time consuming. I wish LabVIEW could be as intelligent as Matlab in the field of data import. Maybe there are some high level technique exist in LabVIEW in this field that I am not aware... Please be kind to share your ideas here Thanks
  2. Next objective: CLD

  3. You can't believe this. I meet exactly a question on this topic in my CLAD test. Thanks again for you guys' help.
  4. thank you all. it"s time to step to CLD:book: I am on the way to approaching you guys' level.
  5. Hellow Lava fellows, It seems that 2D array doesn't support "conditional probe"...
  6. Thanks for all you guys' sharing which encourage me to go on (without taking those training course). Phillip, i will reveiw all your hints in my mind before I enter the exam-room. jcarmody, I cant help say that u are freakin' awesome. The CLD will be my next target after CLAD. The first thing comes to my mind when I look at the picture above isthat" Ooooo. The eyes!"
  7. Hello LAVA fellows, I would like to launch a poll here to know how many CLAD owners took their trainning courses from NI before you passed the exam. Does a guy who works on Labview for around one and half years and is able to finish the sample exam within 40 minute with 70% correct outcomes (OK , this guy is me) need to take part in those trainning courses? I appreciate your reply and any suggestions. Mars
  8. Hello everyone, Here I am again. It a question regarding the property node. In the book "LabVIEW Graphical Programming, Fourth Edition " by Gary W. Johnson and Richard Jennigs, it's written that: Each item in the list can be either a read or a write, and execution order is sequential from top to bottom. But I implement an example with multiple access to property node, the data flow of course runs parallel to and reachs the property node simultaneously. So for me it seems that the execution order is not sequential from top to down but parallel. (And this is consistent to the underlying principle of Labview, a data flow language.) With great respect to the authors, I think I may misunderstand the meaning of the book. Or is it possible that the property node does excute all the accessing parallel? Best regards
  9. Hello Lava fellows, I gonna take the CLAD test at the end of July. Frankly speaking, I was quite confident to pass the exam since I have worked on Labview around 1 and half years. But my CLAD sample exam resulted not so good, only 70% correct. So it seems practice expereinces are slightly different from what NI prefer you to understand in CLAD exam. I guess I have to get more practice by taking more CLAD sample exams. Could anyone be nice to provide some hints or resources for my preparation? Thanks in advance Best regards
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