Convert array components to re/im values?

I have 2Darray and want to convert its componants to re/im values
want to be
26+49i
81+93i
and want that for any values not specific one (cant input values by myself) want sol. for general case
Solved!
Go to Solution.

GerdW wrote:
why do you let us answer that question in two places?
Why do you create double posts?
Twice the exposure means twice the chance of getting an answer? In reality, it just annoys people on the board and you then have half the chance of getting an answer.
There are only two ways to tell somebody thanks: Kudos and Marked Solutions
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Index array is not getting new values from DAQ

I am measuring force values with my DAQ card and these values are always changing. However, in my programming something is not working right with the way I have things set up. After my DAQ I have a "Convert to Dynamic Data" and after that I have an "Index Array". When the program is executing and I turn on the highlight option I do not get changing force values after the "Convert to Dynamic Data" and therefore no changing force values enter my "Index Array". Whaterever the first value is that gets passed to the "Convert to Dynamic Data" is the only value that I get for the remainder of the program. I tried plugging in an indicator between the DAQ and the "Convert to Dynamic Data" and it did show varying values. Please help with my program. I have tried messing with the properties of the "Convert to Dynamic Data" and nothing has worked. I am stuck and cannot see how to fix this problem. I have attached my program as it is currently put together.
Thank You In Advance,
Gabe.
Attachments:
Actuator_Gabe_Oct27_Flat_Sequence_XY_+Measurement_File.vi ‏131 KB

Please know that the best option is to review the concepts discussed to further understand programming in LabVIEW. Perhaps you could take a look through ni.com/gettingstarted and ni.com/lv101 to have a look at some of the online help materials. I have included a VI snippet of the while loop containing the changes. Further, the code you attached contains a lot of customer controls and VIs, which are not common to all LabVIEW users. It is a best practice to only attach the code of value to the question/post, and to have the most simplified version of the problem.
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Having trouble converting array to spreadsheet string, storing the file and coverting back to array with complex numbers

I am working with a network analyzer. I have arrays made of 5 columns the first consisting of an integer and the next four consisting of complex numbers. I am converting the array into a spreadsheet string and then saving the file using the write characters to a file VI. That seems to work well as when I open the file in Excel all the data is there. However when I try to reverse the process, open file and convert back to array, I loose some of the data. Specifically the imaginary parts of my complex numbers are all going to zero. I have narrowed down the problem to be in the conversion from spreadsheet string to array and vice versa. I
think the problem may be with the 'format' input to the VI. I do not have an adequate resource for this so I am not sure what to put in to accomplish my task. Any takers?

Hi Biz
I don't think there is a direct way of converting a complex number to a
string, so when you convert the array to a spreadsheet string, the
numbers would be converted to real data.
However, you could try separating the real and imaginary parts using the
"Numeric: Complex to Re/Im" function, and then store these - either in
separate files or in adjacent columns/rows in the same file. Then, when
you read in the data again, use the "Numeric: Re/Im to Complex" function
to put the two "halves" together.
If you actually want Excel to interpret the numbers as imaginary, then
you'll probably want to create a string for each complex number of the
form "Re + Im*i" (after separating the Re and Im parts), by using
"String:Format into String" with 2 numeric inputs and the format string
"%f+%fi".
Reading the data back into Labview then would require splitting the
string into the 2 pieces by using "Stringcan from String" with 2
numeric outputs (smae precision as original numbers specified by the 2
Default Value inputs) and the same format string "%f+%fi", and then using
the above-mentioned "Numeric: Re/Im to Complex" function. It worked for
me, so if you can't follow what I am describing, send me an email and I
can email you what I did (LV 5.1.1).
Paul
Biz wrote:
> Having trouble converting array to spreadsheet string, storing the
> file and coverting back to array with complex numbers
>
> I am working with a network analyzer. I have arrays made of 5 columns
> the first consisting of an integer and the next four consisting of
> complex numbers. I am converting the array into a spreadsheet string
> and then saving the file using the write characters to a file VI. That
> seems to work well as when I open the file in Excel all the data is
> there. However when I try to reverse the process, open file and
> convert back to array, I loose some of the data. Specifically the
> imaginary parts of my complex numbers are all going to zero. I have
> narrowed down the problem to be in the conversion from spreadsheet
> string to array and vice versa. I think the problem may be with the
> 'format' input to the VI. I do not have an adequate resource for this
> so I am not sure what to put in to accomplish my task. Any takers?
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subbareddy.p

Hi Bhasker,
thanks for u r reply. Here i attached screen shot of my server "data.result".
My proxy varaible contains
My object varaible "obj" contains
After parsing the result my arraycollection contains, (i mean after converting Object to Array to ArrayCollection) the below information. For information Pl find the attached arraycollection.png image. In the attached image my arraycollection name is "users".
Here i pasted the code that i used to convert "ObjectProxy" to "ArrayCollection"
var proxy:ObjectProxy = ObjectProxy(data.result);
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Regards
sss

How to convert signed ascii hex to float value

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I have a requirement to convert IEEE ascii hex to float value.
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The problem is the parseInt method. It can only process numbers up to 2147483647 or 7FFFFFFF. Because that method expects a signed number.
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Hey ,
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Re: Converting unsigned to java signed byte value
i need to use a raw address in a client i am writing
but, of course, the address contains a byte outside
of the java signed byte range.
if any one could tell
me what an unsigned byte of 224 is in signed java
I would be very grateful, if you could also show how
you did this it would be appreciated. thank you =)You misunderstand signed/unsigned.
A byte has 8 bits. It can represent 256 different values.
Viewed as an unsigned scalar the range is [0;255].
Viewed as a signed two's-complement scalar the range is [-128;127].
Values [0;127] are obviously the same byte values in the two views.
What the other half of the possible byte values represent depends on what view you adopt.
You don't need to convert anything.
public final class Byte224 {
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Thank you Ravens Fan for replying.
I missed one extra point of data. Below is what I'd like to send:
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32.001
0.00051234
0.0014838
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Slave Send Data.vi ‏15 KB

Convert array of clusters to cluster of arrays without for loop

Hi!
Here's a problem: I've got an array of clusters (array of messages). Each cluster consists of elements of different data types: double (time), cluster (parameters), char (station id), byte (message code). I know one cluster size and the array size. I need to draw a time graph. How can I convert the array of clusters to a cluster of arrays (array of time values, array of parameters clusters, arrays of chars and bytes).
I post this question because in my real array of clusters each cluster consists of 162 elements and some of them are clusters themselves, so I realy dont want to wire "for" loops as was advised in other topics.
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Idea wrote:
Hi, everybody! Glad you read the post!
There is the cluster in the attachment. The application I make is a TCP client. The cluster is a message. Actually I get a string, find edges ("DIAG" - begin, "GAID" - end) and then I use "unflattern to string" for making the cluster. I cann't make another structure of the message - I didn't make the server. My client has a buffer of recieved messages. I need to plot graphs of different cluster elements for all messages in my buffer (for example the Time 1 element). If I use the for loop it would be too slow. The idea was to convert all buffer to a 2D array of U8 and then use type cast to get the cluster of arrays. Then it would be easy to take ane cluster element and send it to graph.
I didn't sucseed yet.
Idea.
What is your question about?
A) convert the string you get from I don't know where to the giant cluster, the red part in your message, or
B) making a graph out of some element from that giant cluster, who now is in an array, the blue part in your message.
The code you showed us looks a solution for question A but no loop is needed for this. So why bother about a loop that would be too slow here?
Also your code start from an array of U8, so where's the string?
If you could provide a string that needs conversion, we could try another way ... ...
Question B can easily be solved with a for loop and "unbundle by name". Don't know where you get the idea that a loop would be too slow
Open G library has a lot of VI's to retrieve specific elements from clusters, maybe one of those could help solve the problem.

Converting Array of string to an array of integers

I have a problem converting a array of string to array of int's
This is my code...
String[] forminfo = request.getParameterValues("forsendur");
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Incompatible type for method. Can't convert java.lang.String[] to java.lang.String.
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ParesIn methos returns a int buto not a int[]. You must iterate along the String array and perform the methos for each element setting the return value into the element of the int array
Ej:
int[] intArray = new int[stringArray.length]
for(int i = 0; i < stringArray.length; i++)
intArray[i] = Integer.parseInt(stringArray);

Array of Ring to string value for creating a table

I want to convert an array of ring to string and generate a table from it.
But using property node for converting each ring is changing all the value of the table!
each array represents different register!hence required to change for different array!
i am hereby attaching a Vi!
Solved!
Go to Solution.
Attachments:
Untitled 1.vi ‏1944 KB

How about this simple solution? Array of a ring control to Array of string.
/Y
Message Edited by Yamaeda on 04-13-2010 08:36 AM
LabVIEW 8.2 - 2014
"Only dead fish swim downstream" - "My life for Kudos!" - "Dumb people repeat old mistakes - smart ones create new ones."
G# - Free award winning reference based OOP for LV

How can I convert array of database variant to cluster?

When I use the Database Connectivity Toolkit to read a recordset from a database, I just use a SQL query. This returns an array of variant data. I have always just indexed this array in a sequence structure that has the database variant conversion function in it and build a cluster from that. There has got to be an easier way, but I can't find it. Of course, my recordset has various data types in it. Any ideas?

Here is the seed of an idea I had been nocking around.
Compose an SQL query based on the cluster elements. I chose to use the caption of the cluster elements so that the unbundles have the names I want but the caption can be set to match the collumn names from the table. (If you really want to get fancy, update the captions of the cluster of the typedef before the application opens)
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Come to think of it....
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Ben
Message Edited by Ben on 01-03-2007 09:02 PM
Message Edited by Ben on 01-03-2007 09:04 PM
Message Edited by SarahM on 01-08-2007 12:24 PM
Ben Rayner
I am currently active on.. MainStream Preppers
Rayner's Ridge is under construction
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Cluster.JPG ‏92 KB

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Thanks alot
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I checked SU01 and didn't see anything there to customize...
In my workstation, control panel / regional and languages settings / tab regional Options / customize; my time format is HH:mm:ss; the HH has to be in capital letter to display the time in 24 hour...
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Solved!
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I might even attach the VI this time!! (V 8.6)
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Convert array components to re/im values?

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