Replace elements in array

I have a 2D array with values. The array comes from a set of calculations. Unfortunately LabView creates a strange value once in each column (it puts in the value -3,41418E+9 once in each column). I want to replace this value with 0 (zero). How can this be done?
Greetings
Kristoffer
Solved!
Go to Solution.

I have created a couple of sub-VIs, so quite some files to upload, but will do it now!
Attachments:
Master_program_code.vi ‏20 KB
Time_Interval_master.vi ‏27 KB
Powercurve_master.vi ‏30 KB

Similar Messages

Search and replace elements in a 2D Array

Hello,
i have a programming problem in Labview 7.1 under Win XP. I want replace elements in a 2D Array. The code works fine but I want replace elements in the 2D Array (for example all elements between 2 and 5 should replace to zero).
Thank you in advance
Rene
Attachments:
Search_and_replace 2D Array.vi ‏42 KB

Sometimes, you don't need any loops
Note to Devchander:
You can configure the "In Range and Coerce" finction to either exclude or include the limits. This is done by right-clicking on their respecive terminal. Try it! The terminal will be either a solid or open diamond, depending on configuration.
Message Edited by altenbach on 01-11-2006 07:59 AM
LabVIEW Champion . Do more with less code and in less time .
Attachments:
Search_and_replace_2D_ArrayMOD.vi ‏24 KB
SearchReplace2D.png ‏3 KB

Merging elements of array

Hi,
I am new to programming.
I have a sensor that sends a data stream through a serial port. I have collect all that data in a 1D unsigned byte array. Now, lets say my 1-D array is [12][45][65][12]...... where each "[ ]" is a element of the array. Now to make sense of this data what i need to do is merge two elements the array and multipy it by 2/(2^15). i.e. My converted data should by [1245]*2/(2^15). Basically 2 bytes together makes sense. I can do a simple add of each element. Also the other problem is,data from the sensor is a stored as the 1-D array of unsigned byte. However, the converted data is supposed to be signed 16-bit integer.
Please give any suggestions on how to go about doing this.
Siddhant Shah

Another option is "decimate&Join". (Here it is easy to change the byte order if needed).
Message Edited by altenbach on 12-15-2008 06:28 PM
LabVIEW Champion . Do more with less code and in less time .
Attachments:
8bitTo16BitByteOrder.png ‏5 KB

The prefix mx for element mx:Array is not bound

Hi All
I have a component:
<?xml version="1.0" encoding="utf-8"?>
<mx:Array id="arr">
    <mx:Object label="Flex"
      thumbnailImage="http:/someURL"
      fullImage="http://someURL" />
</mx:Array>
<mx:Canvas xmlns:mx="http://www.adobe.com/2006/mxml">
</mx:Canvas>
This gives me an error
The prefix "mx" for element "mx:Array" is not bound
I need a root element here, but I cannot use mx:Canvas, what would be the best choice?
cheers
Luca

Hi Luca,
Try to put the Array inside your canvas rather than outside ...
<?xml version="1.0" encoding="utf-8"?
<mx:Canvas xmlns:mx="http://www.adobe.com/2006/mxml">
<mx:Array id="arr">
    <mx:Object label="Flex"
      thumbnailImage="http:/someURL"
      fullImage="http://someURL" />
</mx:Array>
</mx:Canvas>
Why you dont want to use mx:Canvas as root tag of your component.. ?? However which ever component you use try to put the <mx:Array/> inside your root tag of your component, otherwise you will be thrown the same error as mentioned. The error occurs as the the compiler doesn't recognize the namespace mx for the array since you declared it outside the root tag of your component.
Thanks,
Bhasker

Remove element from array

hi
if i have an array
eg
int[] array = {4,2,1,2,1};
how to i remove the index 2 from it and create a new array?
thanks

You can't remove the element--an array's size is fixed at creation.
If you want a new array, create a new one that's one element smaller, then use System.arrayCopy to copy the elements you want to keep.

How can i retrieve missing element in array

how can i retrieve missing element in arrays if array length is exceeded

Not sure about what the question means, but could it be that OP is not aware that the first element in an array is at index 0 (not 1) ?
<a href="http://java.sun.com/docs/books/tutorial/java/nutsandbolts/arrays.html" style="background:url(http://java.sun.com/docs/books/tutorial/figures/java/objects-tenElementArray.gif) no-repeat; width:400; height:145;"></a>

3D Array: Can't replace subset 2D array?

Hey guys,
I've discovered (possibly) a rather odd event. In debugging my code I came accross my Replace Array Subset function to find it was the source of my frustrations. Either I don't understand how it works for 3D arrays (I use it alot for 2D, 1D) or there is a bug. I've attached an image here of some example code. I cannot replace a 2D array within my 3D array. I'd like to take one page of the 3D and replace it with an updated/different page. The example image is of course only to highly the oddity.
Any thoughts?
Solved!
Go to Solution.
Attachments:
Can't replace 2D array.JPG ‏92 KB

I'm afraid thats not the case. Attached is the actual VI (2009), and another example with more entries in the first page.
Attachments:
Can't replace 2D array (2).JPG ‏99 KB
Cant Replace 3D array subset.vi ‏10 KB

Replacing Element with text using Java iwth XPath

Hi
I have to relpace elements which are with name <Link>,with
string <?abc id='10' city='xxx' ?>
<root>
<title>Dummy title</title>
<content type='html'>
<Link id='100,101'/> Dummy <a href='www.google.com'>content</a> that the <a href='www.yahoo.com'>cross</a> linking tool will manipulate
</content>
<content type='html'>
<Link id='200,201'/> Dummy <a href='www.google.com'>content</a> that the <a href='www.yahoo.com'>cross</a> linking tool will manipulate
</content>
<content type='html'>
<Link id='300,301'/> Dummy <a href='www.google.com'>content</a> that the <a href='www.yahoo.com'>cross</a> linking tool will manipulate
</content>
<removed>500</removed_ids>
</root>expected out put is file is
code]<root>
<title>Dummy title</title>
<content type='html'>
<?abc id='100,101' city='xxx' ?>Dummy content that the cross linking tool will manipulate
</content>
<content type='html'>
<?abc id='200,201' city='xxx' ?>Dummy content that the cross linking tool will manipulate
</content>
<content type='html'>
<?abc id='300,310' city='xxx' ?> Dummy content that the cross linking tool will manipulate
</content>
<removed>500</removed_ids>
</root>
java code is
DocumentBuilder builder = DocumentBuilderFactory.newInstance().newDocumentBuilder();
    Document document = builder.parse(new File("C:\\LinkProcess.xml"));
    XPath xpath = XPathFactory.newInstance().newXPath();
    String expression = "//Link";
    NodeList nodelist = (NodeList) xpath.evaluate(expression, document, XPathConstants.NODESET);
    for(int i=0;i<nodelist.getLength();i++){
    Element element = (Element)nodelist.item(i);
    String id = element.getAttribute("id");
    System.out.println("id = "+id);
    Text text = document.createTextNode("<?dctm id ='100'?>");
    document.insertBefore(text,element);
    System.out.println("remove is success");
    }document.insertBefore(text,element); statement throwing exception as
org.w3c.dom.DOMException: HIERARCHY_REQUEST_ERR: An attempt was made to insert a node where it is not permitted.
and i would like to remove element named <removed>
can you help in this
Thanks & Regards
vittal

1. This element makes your XML document malformed:<removed>500</removed_ids>The name of the start tag and the closing tag must always be identical.
http://www.w3.org/TR/REC-xml/#sec-starttags
2. The type of the nodes with which you would like to replace your <Link> elements is called "ProcessingInstruction". Processing instructions are to be handled somewhat differently from elements.
3. The string "><?dctm id ='100'?>" is misspelled. Additionally, it is meant to be a processing instruction so it should not be created as a text node.
4. You use a node list to replace elements by means of a loop. A loop is only useful when there is a system to the data to be processed, which is not the case with your processing instructions:<?abc id='100,101' city='xxx'?>
<?abc id='200,201' city='xxx'?>
<?abc id='300,310' city='xxx'?>From the fact that you use a loop, I presume that the third node is meant to be <?abc id='300,301' city='xxx' ?>. If so, you can use this code:DocumentBuilder builder = DocumentBuilderFactory.newInstance().newDocumentBuilder();
Document document = builder.parse(new File("C:\\LinkProcess.xml"));
XPath xpath = XPathFactory.newInstance().newXPath();
String expression = "//Link";
NodeList nodelist = (NodeList) xpath.evaluate(expression, document, XPathConstants.NODESET);
float n;
String piData;
ProcessingInstruction pi;
for(int i=0;i<nodelist.getLength();i++){
Element element = (Element)nodelist.item(i);
n = (i+1)*100+((i+1)*100+1)/1000F;
piData = "id='" + n + "' city='xxx'";
pi = document.createProcessingInstruction("abc", piData);
element.getParentNode().replaceChild(pi, element);
System.out.println("Element <Link...> has been replaced with <?abc " + piData + "?>");
}This code is not ideal, but I hope is easy to understand and you will be able to change it to suit your needs.
5. To remove an element use the removeChild() method of the Node interface. If your XML document contains "ignorable" white spaces, it's best to use an XPath expression again ("root/removed") to set reference to the node to be removed rather than locate it by position (e.g. using the getLastChild() method).

Dynamically create empty mcs and asign elements from array and loadmovie

I'm creating an educational game for my school students.
A little boy is flying through the city when he encounters objects flying from left to right.
He hears a SOUND eg: Dog - he must go and click the dog image with the flying cursor. There are at least 5 DIFFERENT objects that should be flying on the screen. There could be various of them at any one time.
I have the roots of the images in an xml file. And the actual swf are in a file called IMAGE and the sounds in SOUND.
My problem is that most tutorials I see use the attachmovie method but I don't want to put all the swf's in the library as there are hundreds.
I have to use the loadmovie method.
I take it I have to loop through the array and assign each element to an empty movieclip which in turn is in the loop so you get 5 empty clips - I will use i (index). It doesn't seem to be working. I shall keep trying and post back here if I get any luck but I'm running out of ideas.
Then the objects have to float across the screen. Don't know whether to use tween object or onEnterFrame handler or other. AND someone has mentioned using setinterval to "spit out" the objects.
BUT if I have five flying across the screen I'm left without clips to stick in any more.
Oh my head hurts but I will keep going.
CHEERS if any help is around. This should be quite a standard thng for game developpers. Code at the moment
function loadEnemies():Void {
enemy_xml = new XML();
enemy_xml.ignoreWhite = true;
enemy_xml.onLoad = function(success:Boolean) {
if (success) {
_root.parseEnemyXML();
//enemy_xml.load("level_"+level+".xml");
enemy_xml.load("data/animal_catch.xml");
function parseEnemyXML():Void {
rows = enemy_xml.firstChild.childNodes.length;
for (var i:Number = 0; i<rows; i++) {
var row_string:String = String(enemy_xml.firstChild.childNodes[i].firstChild.firstChild);
_root["row_"+i+"_array"] = row_string; //MAIN ARRAY holds an array images/dog_a.swf/ images/cat_a.swf etc... all five
_root.createEmptyMovieClip("enemyObjects", 1);
enemyObjects.createEmptyMovieClip("holder_"+i, i);
_root["object"+i] = new Sound(enemyObjects["holder_"+i]);
trace(row_string);
loadMovie["row_"+i+"_array"], ["holder_"+i]
if (level == 1) {
alerts_mc.play();
} else {
currRow = 0;
rowCounter = 0;
OK got to about here BUT
a. I started to get confused around the createEmptyMovieClip part
b. I KNOW I shouldn't have Sound(enemyObjetcs etc... BUT I copied the code from a tutorial and I don't know what to replace it with.
I'm close but I need a little polishing.

It doesn't do you much good to work with borrowed code that you do not understand. Your best bet will be to start small, creating one functional piece of the puzzle at a time, and work your way up. Start with making sure you are loading and parsing the xml properly, then set about loading the external content, then see about making that content move around, etc...
In the code you show, your loadMovie line of code does not resemble anything I have seen before, looking more like (but not quite like) a multi-dimensional array element than a loadMovie() function call. If you find you need to have control of the items as soon as they load, then you should consider using MovieClipLoader.loadClip instead of loadMovie. The MovieClipLoader class provides features, such as to be able to determine when items have fully loaded.

How to change a specific element in array

hi
i have an 1d intialized array
i want to take the existed array and for example add +1 for the 5th element
how can it be done?
thanks
Solved!
Go to Solution.

In a typical application you would want to repeat that operation to form a simple histogram. This is most easily achieved by keeping the array in a shift register and repeating the operation in a FOR loop until all data is processed.
My very simple example from a few years ago can be found here. In this case we are counting the number of occurences of small integers in a 1D array. Modify as needed.
LabVIEW Champion . Do more with less code and in less time .

Web service proxy receiving single element in array

I've generated a web service proxy over a web service and expect to get multiple elements returned from the web service. However when I excute the proxy I receive only the first element. Testing the web service with the same parameters on the application server shows that I should be receiving 3 elements in total. Not sure where the disconnect is in generating the response message within the proxy. Any suggestions is appreciated.

Are you looking for SOAP ENC Array feature? Which version are you using 10134 or 11g?

Add element in array

Hi,
I have one String array.
I need to create another String array with the content of 1st array and additional 1st element in the 2nd array with "Product" text.
2nd array[0] = Product;
How do i do it
Thanks

String[] array1 = {"1", "2", "3"};
String[] array2 = {"4", "5"};
String[] array3 = new String[array1.length+array2.length];
System.arraycopy(array1, 0, array3, 0, array1.length);
System.arraycopy(array2, 0, array3, array1.length, array2.length);
here, the array3 will have all the elements in order ie, 1,2,3,4,5.
In case you need to use array2, assign array3 to array2 ie, array2 = array3
Hope that helps.
Regards,
Sumant

Sort Second Element in Array of Strict Type Def Clusters

I need to sort the an array of strict type def clusters by the second or third element in the cluster. In the past I have used 1-D array sort and sorted by the first element of the cluster. When I need to sort by the second, third, or fourth element of the cluster I just break down the cluster and rebuild it placing the desired sort element in the first position of the new cluster. This works for simple tasks and clusters, but as the cluster gets more complicated this becomes a pain to do this. There must be a cleaner way to sort by other elements within the original array of strict type def clusters. Has anyone succeeded in doing this a different way?

Hello,
Here's the way I would do it...just create a new cluster array, where each cluster contains two elements...the unbundled item you want to sort by, and the cluster itself. Then sort the new cluster array, then unbundle the sorted cluster array to get the original clusters (now sorted). Here is a screenshot:
There may be a better way, but this is the first thing I thought of.
-D
Message Edited by Darren on 03-16-200610:00 AM
Darren Nattinger, CLA
LabVIEW Artisan and Nugget Penman
Attachments:
Sorted_cluster.jpg ‏30 KB

How to add all element of array?

1-D array has N number of element .i want to sum all the element ,and the result is a number.
can you give me some example?
thanks.

Just use the "Add Array Elements"-function located in the Numeric palette.
Message Edited by becktho on 02-21-2006 12:58 PM
Using LV8.0
Don't be afraid to rate a good answer...
Attachments:
AddArrayElements.PNG ‏14 KB

Problems selecting elements from arrays

I'm having difficulty selecting indexed elements from a array of nodes. I have seen this issues discussed in a number of threads but none address the specific issue which I have encountered.
Previously in version 10.1.2 I constructed a XPath query and then used the BPEL getVariableData function to obtain the element I was after but this doesn't appear to be supported the same way in 10.1.3.1.
I'm using the following expression
bpws:getVariableData('VariableDBResult',bpws:getVariableData('xpath'))
and when I try to compile I get the following error
Error(243):
[Error ORABPEL-10085]: invalid argument
[Description]: in line 243 of "C:\....", the second argument "bpws:getVariableData("xpath")" for getVariableData is not a literal expression.
[Potential fix]: Please correct the second argument, you might need to escape using single quote or " to make it literal.
I used the same code in 10.1.2 and it compiled fine.
For reference the XPath is formed as follows
concat('/ns3:Result/ns3:t/ns3:c/ns3:e[',bpws:getVariableData('loop'),']')
But the error occurs at compile time not run time so I suspect the way the xpath is formed would not affect the compile
I'm suspecting the problem has something to do with the fact that I'm using the function without the optional "pat name" the variable "VariableDBResult" is defined by a schema not a WSDL message type. I have compiled the Array sample 112 which used a part name and it works but in my case without the part name it fails.
I attempted to cast the expression to a string and use a string variable, all to no avail.
Any help or suggestions will be greatly appreciated.
Regards
Graeme

Has anybody got around this issue...I searched the forums but allI could get it unresolved threads pointing to this problem
getVariableData is not a literal expression
Re: getVariableData is not a literal expression
Literal function error
Literal function error
I want to mention that its a compile time issue and I am using Jdev 10.1.3.4

Replace elements in array

Similar Messages

Maybe you are looking for