Boolean Build table

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• Build tables then again

  Hi all

  I know that you are reading these words a lot here, sorry, I'm new to labview and I want someone to help me in vi that I'll explain now.

  

  I have a while loop with a variable inside (local variable or a random variable in this example), the loop has timeout of 1000 ms, so each one second there is a new value.

  After a time, I want to record what the output variable into an array and then summarize all these values and then display.

  I trigger the recording process manually by using a Boolean trigger, so, no need for a timer or something, I have you just press a button then values begin at accomulate in the table and then when I release the button, I want these values to summarize and display, then I have another RESET Boolean, I press reset the values of the transom zeros in order to press the key once more again later in and then the process is repeated again.

  I did the vi in the way I write now that I can start only the vi so the values accomulate and then when I press the Boolean value affects the loop stops and then the table is summed up and display.

  the problem is that I can not reset the values or repeat once again because when I press the Boolean value, stop the loop and I cannot start over once again.

  I'll be very grateful if someone helped me with that.

  Thanks in advance

  Concerning

  Shady

  Hey shady,

  It is always advisable to use the registry to offset for building tables. Using a while loop within a Structure of matter is not a good programming practice. Check out the attached VI. This should help you.

  

  Best regards,
  NitZ

  (Bravo to give good answers, mark it as a Solution If your problem is resolved)

• Build table

  Hi guys

  Need some help here

  My goal is more

  1. create a table based on the values programitlitly beeing past in the table

  2. This should each time when a Boolean value is true.

  3. the table building function should wait 6 s when the value is true before you store them in the array

  My problem is that when I press on True and begin to change the value to the value desired before past 6 seconds, the value passed to the table after 6 seconds is the starting value before I changed to the desired value betwwen 1 to 6 seconds.

  It drives me crazy

  And the desired value must come within a structure of sequense

  The attached value se

  Put the digital terminal in the second image in the sequence. In this way he'll only get read after 6 seconds.

• Build table 2D-the only condition of case string

  Hello

  I'm having a problem when I am trying to build a 2D of the elements of the string table. Here's basically what I'm doing:

  I'm loading the tables in different text files (Session_001.txt, Session_002.txt, etc.) and concatenate into 1 big table.

  On each line of text Session files, there is the session number, various characteristics of hockey sticks, and then a couple results.

  I want to be able to select the various features and then display the corresponding results. Currently, I'm working on the selection of the Session, and when I get this working, the rest would be similar (I guess).

  The problem I have is that when I select the sessions that I want, the Array3 resulting (with all data) is filled with empty lines (table 1 d of the empty elements). I had the same problem when display a table 1 d (table 2) coming to show what Sessions had been selected, but I managed to fix that by searching for and deleting empty elements.

  The problem lies within the structure of matter I. I compare all the elements in the first column of my huge 2D array with each number of the selected Session, and when it is 'true', that I keep the current line to go to table 3. If it is "false", nothing should happen (I have a registry change through my case 'false', but a line of empty strings is added to the table.

  What Miss me?

  I know this probably sounds very confusing, so I join you the only VI and a zip containing the VI and my text files.

  Thank you!

  Off topic (Finally, still on the topic of my VI), it will be possible to assign a different color for each type of stick (MX3, APX3) or the different type of marker for different types of shots (WS, SS), etc., when I want to display the results on the same graph? If not, stop now and I'm going to Matlab.

  Oh my... Equal to true. I'm so ashamed.

  I just started Labview on my internship 2 weeks ago. There are probably several simplifications I can do for my screws, but as long as they work and do not burn my laptop, I agree.

  With respect to the conditional tunnel, I n, t really know to use it yet, but I found the problem with my registry to offset. I created a 2D array empty outside the two loops and added a registry to offset. I then build I tried to rely on another thread.

  Resolved VI is attached to anyone who cares

• Boolean reference table

  How do I create an array of Boolean reference?

  Steve

  Hi 4BoysDad,

  You are eager to create an array of Booleans in LabVIEW?

  If so, you can place a constant matrix down, then place a Boolean constant inside the empty array. This will turn it into an array of data type Boolean. Then you can stretch the table to add/remove the number of items in the table (or use the up/down arrows index).

  If you try to do that in something else than LabVIEW, let me know.

  Also, for any future reference your post will get more action if you post them in the appropriate sub-forum. This forum is for our DSA material, post it in the forum LabVIEW will result in faster responses.

• Build table - you have connected two terminals of different types

  Hello, I'm getting my vibration sensor data using my USB 9171 cdaq and the NI 9234. I want to display the signal of vibration, to record in a file, to do all kinds of possible statistics and the display of the statistics table on the front in update mode, attached is my VI based on some examples in the finder of the example, it has an error, can someone help me to make it work. Thank you very much in advance for your collaboration. Ihab

  Change the table build to add entries instead of concatenate.

  Lynn

• Why "arrow red triangle" show in build table function?

  refer to title, when you use the function 'building the table' why it displays "arrow red triangle" in the port of entry, you can see two photo below, why this difference occurs?

  any response is high appreciated!

    

  I got the reason: even the label of controls must be identical.

  

• Build table retaining memory between executions

  Hey everybody,

  I'm relatively new to LabVIEW and try to design an executable to read the measurements of a digital multimeter that takes measures and integrate them into a table which then transfers to an Excel document.

  I received the DMM upward and running, I have got to write to the file, but if I run several times he tries to build the file using past performance and the results of the current test.

  How can I empty the system memory so that it starts fresh every time?

  Right now I use a loop which refreshes the numerical measures and use buildarrays to compile all of the results (shift registers to sell berries). At the end of the code (stop button) they transfer to be compiled into tables.

  Hi anthony,.

  I have attached the VI the problem of shift register.  When you run that a vi with SHIFT registers him registry will remain in memory until you close.  Then, when you run your first iteration, it will start by default, then stop.  When you restart it without closing the register shift will keep the values from the previous run.  As long as the temperature outside the loop so you reset the registry of each race.

• Can I remove the spaces between Booleans in table 2D?

  Hi all

  I created a table 2D Boolean buttons. But there are still spaces between the 2 buttons (see picture below). I want my buttons are near others. I tried the custom control, but was not getting rid of this problem. So, is there a way to fix this? If I want to change the color of the button programmatically, should BTW, I Xcontrol to do this? Thank you!

  I use lv 8.5.

  

  Best wishes

  Bo

  foolooo wrote:

  Hi all

  I created a table 2D Boolean buttons. But there are still spaces between the 2 buttons (see picture below). I want my buttons are near others. I tried the custom control, but was not getting rid of this problem. So, is there a way to fix this? If I want to change the color of the button programmatically, should BTW, I Xcontrol to do this? Thank you!

  I use lv 8.5.

  

  Best wishes

  Bo

• Boolean quick table to table number conversion

  Hello

  Can someone tell me the quickest way to convert an array of Boolean to an array of 8-bit words repressenting numbers?

  Examples:

  Table of Boolean 1 d: 11001001 11111111 10110010

  Out of 1 d U8: 201 255 178

  As you can see it the MSB is read first. I'm going to cela thousands of times. What is the most effective way to do this? My implementation is not fast enough.

  Any help or links would be greatly appreciated.

  John

  Please find attached a suggestion.

  Your pieces of bits is always the same size?

• Effective Int32 table in table of Boolean for table Int16

  Have a wide range of Int32 (~ 500 000 elements).

  Each Int32 must be analyzed in two Int16 tables: table 1 the first 12 bits of the Int32, Array 2 is the second 12 bits of the Int32.

  The method I use (see table) works fine but it takes a long time to run (on a relatively slow processor, embedded).

  Does anyone have an idea how to make it run faster?

  Boolean operations on numbers using seems to be quite a bit faster: 42 ms vs ms 280 for 1000000 point tables.  See the image below.

  Also, when I duplicated the code on the image I don't have results you described in your post.  Please post images as .png files.  They can be shipped rigtht in depth with the Insert/edit image button (it looks like a tree).

  Lynn

  

• building tables and compare content

  Hi team,

  build a flash drag and drop activity with a button of control responses, having trouble getting tables to compare... Here is my code (below)

  Why my work table uanswer properly used and when I compare the tables how can I make them "match" or == if they have the same content in different order? Is how important it?

  Also can I get a number reutrned on the number of items matching there even if they do not completely match?

  See you soon

  void

  ans1.ans1text.text = "beans";

  ans2.ans1text.text = "Chicken";

  ans3.ans1text.text = "Rice";

  ans4.ans1text.text = "Rocks";

  ans5.ans1text.text = "Dirt";

  incorrect var: number = 0;

  var right: number = 0;

  trace (getRect (destination1));

  var rightanswers:Array = ["years1, years2, years3"];

  for (var i: int = 0; i < rightanswers.length; i ++)

  {

  var response: String = rightanswers [i];

  }

  var useranswers:Array;

  for (var j: int = 0; j < useranswers.length; j ++)

  {

  var uanswer:String = useranswers [j]

  }

  This.ans1.addEventListener (MouseEvent.MOUSE_DOWN, pickMe1);

  This.ans1.addEventListener (MouseEvent.MOUSE_UP, dropMe1);

  function pickMe1(event:MouseEvent):void {}

  event.target.startDrag ();

  }

  function dropMe1(event:MouseEvent):void {}

  event.target.stopDrag ();

  var myTargetName:String = "years1" + event.target.name;

  If ((event.target.hitTestObject (destination1) == true)) {}

  useranswers.push ("years1");

  trace (useranswers);

  } else {}

  var ians1:Number = useranswers.indexOf ("years1");

  trace (ians1);

  useranswers.splice(ians1,1);

  trace (useranswers);

  }

  }

  This.ans1.buttonMode = true;

  This.ans2.addEventListener (MouseEvent.MOUSE_DOWN, pickMe2);

  This.ans2.addEventListener (MouseEvent.MOUSE_UP, dropMe2);

  function pickMe2(event:MouseEvent):void {}

  event.target.startDrag ();

  }

  function dropMe2(event:MouseEvent):void {}

  event.target.stopDrag ();

  var myTargetName:String = "years2" + event.target.name;

  If ((event.target.hitTestObject (destination1) == true)) {}

  useranswers.push ("years2");

  trace (useranswers);

  } else {}

  var ians2:Number = useranswers.indexOf ("years2");

  trace (ians2);

  useranswers.splice(ians2,1);

  trace (useranswers);

  }

  }

  This.ans2.buttonMode = true;

  This.ans3.addEventListener (MouseEvent.MOUSE_DOWN, pickMe3);

  This.ans3.addEventListener (MouseEvent.MOUSE_UP, dropMe3);

  function pickMe3(event:MouseEvent):void {}

  event.target.startDrag ();

  }

  function dropMe3(event:MouseEvent):void {}

  event.target.stopDrag ();

  var myTargetName:String = "years3" + event.target.name;

  If ((event.target.hitTestObject (destination1) == true)) {}

  useranswers.push ("years3");

  trace (useranswers);

  } else {}

  var ians3:Number = useranswers.indexOf ("years3");

  trace (ians3);

  useranswers.splice(ians3,1);

  trace (useranswers);

  }

  }

  This.ans3.buttonMode = true;

  checker.addEventListener (MouseEvent.CLICK, checker1);

  function checker1(event:MouseEvent) {}

  trace (response);

  trace (uanswer);

  That's where I want to get my two tables to compare, but my table of uanswer does not work

  }

  function matchesF(a1:Array,a2:Array):int {}

  var n: int = 0;

  If (a1.length<>

  var has:Array=a1.slice();

  var:Array=a2.slice() b;

  } else {}

  a = a2. Slice();

  b = a1. Slice();

  for (var i: int = 0; i<>

  {if (b.IndexOf (a [i]) >-1)}

  n ++ ;

  }

  }

  return n;

  }

• build table 2d

  Hello

  I was keen to build a 2d element of 10 * 10. So a total of 100 items. The upper left corner of the element must be 0 and the lower right corner must be 10. Each element will be the last of 0.1. Is there a way to build it quickly instead of filling each value. I would like to look like this.

  0,0.1,0.2,0.3,0.4,0.5...

  1,1.1,1.2,1.3,1.4,1.5...

  2,2.1,2.2,2.3,2.4... and so on

  Any help would be appreciated

  Thanks, Craig

  Hi Craig,.

  using basic math:

  

  But in the meantime you should have typed a constant matrix rather

• Build table experimental Points on

  What I do with labview, use an output module for the control of a valve ball valve and finally flow rate throug a pipe.  I'm trying to set up a loop that will gradually open the valve and at each stop point account made the position of the valve and the flow rate (flow of a counter with output 4-20).  Then using the data table, I should be able to draw line inbetween each pair of points and use my line segments to define the flow curve.

  Then in operation I should be able to ask for a flow, and using the initialization data, labview can send the signal to the right position to the valve.

  I'm stuck on the construction of this picture however. In addition, at this stage I am simulating signals, positions and rates based on some arbitrary relationships.

  For now I would record the points on the Board based on the click of a button.  In you future I have will automate.

  

  
  

• Building a structure to deal with four Boolean (true or false) input.

  I currently have two Boolean inputs that I would use to select a structure of business cases. I would like to have the four cases, each depends on the two Boolean true/false question. If variable Boolean 1 = true, then case 1 must be used, if Boolean 2 = true, case 2 is to be used, etc.

  What structure use to convert these Boolean entries in digital case?

  Build table for two Boolean values, then a Boolean table number.