Add data at the beginning of the text file

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• Writing data in the text file or excel spreadsheet

  Hello

  I have a silly question to ask questions about the writing of data in a text file or a spreadsheet. I have an example that simulates a sine-swept DAQmx. The output it provides is the (amplitude and phase) frequency response function that is plotted on a graph (see VI) attached. I like to use these data for further analysis by transmitting the data to a text file or a spreadsheet. I've tried a few things, but the thread is broken. I guess I use the sink badly - so I was wondering, can you please advise me on what sink should I use?

  Your help would be very appreciated,

  Thank you very much

  REDA

  The wire is broken, because you cannot connect this type of data to one of these two functions. The data source type is a table 1 d of the clusters, where each cluster contains two tables. The text file write accepts strings, not clusters. Writing on a file action accepts dynamic data, and while you can convert dynamic data tables, there is no built-in mechanism to convert a table 1 d of the clusters of two matrices.

  What you need to do is to convert the data in a format which can be accepted by these functions. Since you want to have a "spreadsheet" file then you should use writing to the spreadsheet file that creates a delimited text file. Since the frequency data would be the same for the plot of the magnitude and phase diagrams, you can have 3 columns: frequency, amplitude, and phase. You can take off the items using Unbundle by name, and then create a table 2D of each element of the cluster. The real question is to know if you want to save the data at each iteration and if you simply add on the file. The attached figure shows write an initial header and then adding just streaming the data.

• Import data from the text file to open the Document

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  Have you looked at using custom JavaScript?

  importTextData

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• Adds data to the binary file as concatenated array

  Hello

  I have a problem that can has been discussed several times, but I don't have a clear answer.

  Normally I have devices that produce 2D image tables. I have send them to collection of loop with a queue and then index in the form of a 3D Board and in the end save the binary file.

  It works very well. But I'm starting to struggle with problems of memory, when the number of these images exceeds more than that. 2000.

  So I try to enjoy the fast SSD drive and record images in bulk (eg. 300) in binary file.

  In the diagram attached, where I am simulating the camera with some files before reading. The program works well, but when I try to open the new file in the secondary schema, I see only the first 300 images (in this case).

  I read on the forum, I have to adjust the number of like -1 in reading binary file and then I can read data from the cluster of tables. It is not very good for me, because I need to work with the data with Matlab and I would like to have the same format as before (for example table 3D - 320 x 240 x 4000). Is it possible to add 3D table to the existing as concatenated file?

  I hope it makes sense :-)

  Thank you

  Honza

  • Good to simulate the creation of the Image using a table of random numbers 2D!  Always good to model the real problem (e/s files) without "complicating details" (manipulation of the camera).
  • Good use of the producer/consumer in LT_Save.  Do you know the sentinels?  You only need a single queue, the queue of data, sending to a table of data for the consumer.  When the producer quits (because the stop button is pushed), it places an empty array (you can just right click on the entry for the item and choose "Create Constant").  In the consumer, when you dequeue, test to see if you have an empty array.  If you do, stop the loop of consumption and the output queue (since you know that the producer has already stopped and you have stopped, too).
  • I'm not sure what you're trying to do in the File_Read_3D routine, but I'll tell you 'it's fake  So, let's analyze the situation.  Somehow, your two routines form a producer/consumer 'pair' - LT_Save 'product' a file of tables 3D (for most of 300 pages, unless it's the grand finale of data) and file_read_3D "consume" them and "do something", still somewhat ill-defined.  Yes you pourrait (and perhaps should) merge these two routines in a unique "Simulator".  Here's what I mean:

  

  This is taken directly from your code.  I replaced the button 'stop' queue with code of Sentinel (which I won't), and added a ' tail ', Sim file, to simulate writing these data in a file (it also use a sentinel).

  Your existing code of producer puts unique 2D arrays in the queue of data.  This routine their fate and "builds" up to 300 of them at a time before 'doing something with them', in your code, writing to a file, here, this simulation by writing to a queue of 3D Sim file.  Let's look at the first 'easy' case, where we get all of the 300 items.  The loop For ends, turning a 3D Board composed of 300 paintings 2D, we simply enqueue in our Sim file, our simulated.  You may notice that there is an empty array? function (which, in this case, is never true, always False) whose value is reversed (to be always true) and connected to a conditional indexation Tunnel Terminal.  The reason for this strange logic will become clear in the next paragraph.

  Now consider what happens when you press the button stop then your left (not shown) producer.  As we use sentries, he places an empty 2D array.  Well, we dequeue it and detect it with the 'Empty table?' feature, which allows us to do three things: stop at the beginning of the loop, stop adding the empty table at the exit Tunnel of indexing using the conditional Terminal (empty array = True, Negate changes to False, then the empty table is not added to the range) , and it also cause all loop to exit.  What happens when get out us the whole loop?  Well, we're done with the queue of data, to set free us.  We know also that we queued last 'good' data in the queue of the Sim queue, so create us a Sentinel (empty 3D table) and queue for the file to-be-developed Sim consumer loop.

  Now, here is where you come from it.  Write this final consumer loop.  Should be pretty simple - you Dequeue, and if you don't have a table empty 3D, you do the following:

  • Your table consists of Images 2D N (up to 300).  In a single loop, extract you each image and do what you want to do with it (view, save to file, etc.).  Note that if you write a sub - VI, called "process an Image" which takes a 2D array and done something with it, you will be "declutter" your code by "in order to hide the details.
  • If you don't have you had an empty array, you simply exit the while loop and release the queue of the Sim file.

  OK, now translate this file.  You're offshore for a good start by writing your file with the size of the table headers, which means that if you read a file into a 3D chart, you will have a 3D Board (as you did in the consumer of the Sim file) and can perform the same treatment as above.  All you have to worry is the Sentinel - how do you know when you have reached the end of the file?  I'm sure you can understand this, if you do not already know...

  Bob Schor

  PS - you should know that the code snippet I posted is not 'properly' born both everything.  I pasted in fact about 6 versions here, as I continued to find errors that I wrote the description of yourself (like forgetting the function 'No' in the conditional terminal).  This illustrates the virtue of written Documentation-"slow you down", did you examine your code, and say you "Oops, I forgot to...» »

• How to save data in the text file of Spartan 3

  Hi all

  I would like to kindly save the data table text file or a spreadsheet on vi using fpga spartan 3e as an fpga target. Once I added all the functions related to the operation of file, it gave an error that these functions are not supported by the target device.

  could you please help me with this

  Thank you

  Rania

  Hi David,

  Thank you for posting. You use LabVIEW? If so, what version of LabVIEW FPGA do you use? You use a host VI, or any deployment of code at your target to run? The file IO VI probably won't compile to target because they are not intended to be used on your host computer. Resources and the paths of files do not exist on the target FPGA, but rather on the side of the host. I have included a link below that describes how to transfer data between the FPGA and host. I hope this helps!

  http://zone.NI.com/reference/en-XX/help/371599F-01/lvfpgaconcepts/pfi_data_transfer/

• How to view the data in the text file to the format column

  Hello

  I am acquiring data from an oscilloscope.

  Wen I save the data in a text file to aid wite spreadsheet string, all the displayed voltage values r first, then values of time... in addition to its delimited by tabs

  How can I view it like the r of time values in a single column and the voltyage of the r-values in the other column

  thanx

  Hello

  I don't know what is exactly the format that you found. I think you should try to use the function Array transpose (from the palette of function table) before you pass the array to write to string of spread sheet function or directly loyal to Terminal son transposes on writing worksheet function and see if you get the desired results.

  PS. : Share your code would be appreciated.

  Kind regards

  Amine31

  (Kudos are always welcome, mark it as a solution if it is the only)

• Using the data from the text file to the plot on a histogram

  Hi professionals of the NC.

  I have a data file text attached with 3 columns of data and I would draw it with a histogram.

  Unfortunately, the histogram data to create will not let me extract the values I want to draw it...

  I've seen some of the older ones on how to do that, unfortunately, it was a very long thread and the screw, images have been corrupted.

  Someone has a great solutions for this...? Really appreciate it!

  Hi Lexen,

  no need to use ExpressVIs:

  

  I used the simple histogram function, there is a step where you can provide more parameters. And I used LV2011, so the ReadSpreadsheetFile function looks different than in the latest versions of LabVIEW.

  in the desire to tell graphic C Red, G will be blue and D in green...

  I don't know what means DMC, but change properties parcel should be pretty easy!

• Add data at the end of a specific line in the text file

  Hello

  I'm trying to add data at the end of the last 4 lines of the text file attached with the ' table to add.  4 rows (422.5800 entry), I would add the first entry of the 'Array to add' entry, on the 5th line to add the second entry of the 'Add picture' and so on.  How can I do this?

  Any help will be appreciated.

  Sincerely,.

  hiNi.

  After re-reading your post, I think that's what you really want to start adding after the first 4 rows.

• Add data in the header of a .wav file

  Hello guys,.

  I seek your help for a small problem that I can't spend during my internship.

  Here's what I want to do: I acquire signals that I write a .wav file. What I would do then is to reopen this .wav file and add data in the header, such as the sensitivity of the microphone for example. I am doing this is because it's one of our program of works, it can resume the pressure vs time signal using this information. I already have the hex code I need to add, but I was not able to determine if such a thing is possible or not after a day of research ideas would be greatly appreciated. I wonder if Matlab might do the trick but I prefer to stay with the 'normal '... screws

  Thank you very much for your help.

  To insert data into the middle of a file, you will need to rewrite the entire file after that point, as Gerd said in the linked post.  I would do the following:

  1. Search for the location you want to put your new piece
  2. Read 65 000 bytes from forward and store in a local cache (shift registers work well for this, or just a wire at this point).
  3. Write your new piece, taking note of how long it is
  4. Give your data buffered less the length of your new song
  5. Read a 65 000 other bytes and put it in a new buffer
  6. Write the end of the old buffer and a part of the new buffer until you get to 65 000 bytes
  7. Repeat 4 to 6 until you reach the end of the file
  8. Update the offsets in the header to match the new locations of piece, since you have moved things

  You can probably do it with both data pads in a pair of registers at offset in a loop.  The 65 000 bytes is chosen for best performance.  You can use other sizes, but your speed can suffer.  Let us know if you encounter any problems.

• Can all help with VI to get data (HEX) serial number and write in the text file

  Hello I am struggling with this problem for 2 months... They get help from different I thought I solved the problem, but of no use yet I stand on zero

  Problem: I need to get data on USB high speed HEXAGON shaped (coming in hexadecimal and be stored in the text file to the hexadecimal format as each hexadecimal value online different I'll also to attach the file)

  Get us ASCII on series or VISA read but when trying to convert to hex as shown in text file making it slower to deal with code, I know that my VI will have to improve more... I'm waiting for suggestions

  Need urgent help...

  Thanks in advance

  Hi Ali Afzal,.

  I think that the attached example can work for you. If not, then try the solution with sending the data to a parallel running the loop and store it there.

  Mike

• alignment of the text file column data

  Hi all

  I want to format the output file as shown in need. Suggestions appreciated. I tried with lpad, rpad in the query. Also tried with justify right in the column after A5 format... (A5 size frame right)

  It is part of an important application.

  Please suggest.

  SQL file

  --------

  set verify off
  Set feedback off
  NewPage 0 value
  set pagesize 63
  set linesize 280
  TOPIC ON THE VALUE

  coil c:\test.txt.
  column heading "CTY" A5 format Change_types

  termout off Set

  Select CT of
  tab;

  output in the text file

  CTY
  -----
  N

  Power required:

  CTY
  -----
  N

  (* See space above)
  Oracle 10g
  running sqlplus

  Thank you

  HA!

  Hello

  G2500 wrote:

  Hi all

  I want to format the output file as shown in need. Suggestions appreciated. I tried with lpad, rpad in the query. Also tried with justify right in the column after A5 format... (A5 size frame right)

  It is part of an important application.

  Please suggest.

  SQL file

  --------

  set verify off
  Set feedback off
  NewPage 0 value
  set pagesize 63
  set linesize 280
  TOPIC ON THE VALUE

  coil c:\test.txt.
  column heading "CTY" A5 format Change_types

  termout off Set

  Select CT of
  tab;

  output in the text file

  CTY
  -----
  N

  Power required:

  CTY
  -----
  N

  (* See space above)
  Oracle 10g
  running sqlplus

  Thank you

  HA!

  This sounds like a job for LPAD.  What exactly have you tried?  It is difficult to say what hurts you without knowing what you were doing.

  I don't have a copy of your table, so I'll use the scott.dept table to illustrate:

  SELECT LPAD (dname, 20) department_name

  OF scott.dept

  ;

  Output:

  DEPARTMENT_NAME

  --------------------

  ACCOUNTING

  SEARCH

  SALES

  OPERATIONS

  You want to justify the right title, like this

  DEPARTMENT_NAME

  --------------------

  ACCOUNTING

  SEARCH

  SALES

  OPERATIONS

  ?

  If so, make this SQL * more order

  Department_name RIGHT-JUSTIFIED COLUMN

  before running the query.  COLUMN... JUSTIFICATION applies only to the topic, not the data.

• Add Note to the text

  Hello

  Before I had an option in Adobe Acrobat Reader for "add a note to the text. I don't remember when I saw that it is no longer available, but now I've got Adobe Acrobat Reader DC, exit 2015 | Version 2015.017.20053. Of course, I know where to allow comments toolbar and I know on 'Add a sticky note' and 'Add a note to replace the text' but before I had also "add notes to the text. This has been deleted? I want to be able to comment on the text, while selecting the text that I comment on. What do you advice?

  Thank you!

  Best regards

  Hi idajeho ,

  We are sorry for the inconvenience, there was a change in the function of comment and add a text note is only available in the context menu option.

  Please refer to this link: commenting tools missing in update

• Add data in the dumpfile parameter in command exp

  Hello
  
  I have installed 10.2.0.1 on windows server 2003.
  
  I took the backup hot using the command.
  

  Exp username/pwd FILE=C:\DataBaseBackups\3AMNEO.DMP LOG=C:\DataBaseBackups\3AMNEO.LOG

  which works very well.
  
  I made a batch file that have this code and that run daily at some point and overwrite existing (i.e. the last day) backup. But I don't want to do.
  
  I would like to add data with the file name so that every day, it creates a new backup. (No more write existing backup.)
  
  My goal is to do a daily backup without replacing existing backup automatically.
  
  Thank you

  Hello

  hope this helps

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• Need help: UTL_FILE read and write in the text file

  Hello, I'm on version 11 GR 2 by using the UTL_FILE function to read a text file and then write the lines where it starts with the word "foo" and put an end to my writing in the text file where the line with the word "ZEN". Now I have several lines that begin with 'foo' and 'ZEN' allow a paragraph, and in this paragraph, there is a line that begins with "DE4.2". Therefore,.
  I need to write all of the paragraphs that include the "DE4.2" line in their beginning and end of lines 'foo' and 'ZEN '.
  
  FOR EXAMPLE:
  
  FOO/234E53LLID
  IT'S MY SECOND LINE
  IT'S MY THIRD LINE
  DE4.2 IT OF MY FOURTH LINE
  IT'S MY FIFTH LINE
  ZEN/DING3434343
  
  FOO/234E53LLID
  IT'S MY SECOND LINE
  IT'S MY THIRD LINE
  IT'S MY FIFTH LINE
  ZEN/DING3434343
  
  I'm only interested in writing the first paragraph tha includes line DE4.2 in one of the paragraph of lines not the second ther that does not include the "DE4.2".
  
  Here is my code so far:
  
  CREATE OR REPLACE PROCEDURE my_app2 IS
  Utl_file.file_type INFILE;
  outfile utl_file.file_type;
  buffer VARCHAR2 (30000);
  b_paragraph_started BOOLEAN: = FALSE; -flag to indicate which required paragraph is started
  
  BEGIN
  -Open a file to read
  INFILE: = utl_file.fopen ('TEST_DIR', 'mytst.txt', 'r');
  -Opens a file for writing
  outfile: = utl_file.fopen ('TEST_DIR', "Out.txt", "w");
  
  -Check the file is open
  IF utl_file.is_open (infile)
  THEN
  -lines in the file in loop
  LOOP
  BEGIN
  UTL_FILE.get_line (infile, buffer);
  APPLICATION STARTING POINT-
  Buffer IF LIKE 'foo %' THEN
  b_paragraph_started: = TRUE;
  END IF;
  -SEARCH FOR GRADS APPS
  IF b_paragraph_started AND buffering LIKE '% 4% ' THEN
  UTL_FILE.put_line (outfile, buffer, FALSE);
  END IF;
  -REQUEST FOR ENDPOINT
  Buffer IF LIKE '% ZEN' THEN
  b_paragraph_started: = FALSE;
  END IF;
  UTL_FILE.fflush (outfile);
  
  EXCEPTION
  WHEN no_data_found THEN
  EXIT;
  END;
  END LOOP;
  END IF;
  UTL_FILE.fclose (INFILE);
  UTL_FILE.fclose (outfile);
  EXCEPTION
  WHILE OTHERS THEN
  raise_application_error ("-20099, ' UTL_FILE unknown error");
  END my_app2;
  /
  
  When I run this code I get only one line: DE4.2 it ME LACK THE WHOLE PARAGRAPH
  
  PLEASE ADVISE...

  I agree with reservations of Justin on the length of a "paragraph" and the number of users that are running at the same time, so here is a version without the collections.

  CREATE or replace PROCEDURE my_app2 IS
     infile utl_file.file_type;
     outfile utl_file.file_type;
     buffer VARCHAR2(30000);
     b_paragraph_started BOOLEAN := FALSE; -- flag to indicate that required paragraph is started
     b_toprint BOOLEAN := FALSE;
     l_para_start pls_integer;  -- start of "paragraph"
  BEGIN
     infile := utl_file.fopen('TEST_DIR', 'mytst.txt', 'r');
     outfile := utl_file.fopen('TEST_DIR', 'out.txt', 'w');
     LOOP
        BEGIN
           utl_file.get_line(infile, buffer);
           IF buffer LIKE 'FOO%' THEN
              b_paragraph_started := TRUE;
              l_para_start := UTL_FILE.FGETPOS(infile) - (length(buffer) + 1);
           END IF;
           IF b_paragraph_started and buffer like '%DE4%' THEN
              b_toprint := TRUE;
           END IF;
           If buffer like 'ZEN%' THEN
              IF b_toprint THEN
                 UTL_FILE.FSEEK(infile, l_para_start);
                 utl_file.get_line(infile, buffer);
                 while buffer not like 'ZEN%' loop
                    utl_file.put_line(outfile,buffer, FALSE);
                    utl_file.get_line(infile, buffer);
                 end loop;
                 utl_file.put_line(outfile,buffer, FALSE);
              end if;
              b_paragraph_started := FALSE;
              b_toprint := false;
              utl_file.fflush(outfile);
           end if;
        EXCEPTION
           WHEN no_data_found THEN
              EXIT;
           END;
     END LOOP;
     utl_file.fclose(infile);
     utl_file.fclose(outfile);
  END my_app2;
  

  Test:

  SQL> !cat mytst.txt
  FOO/234E53LLID
  THIS IS MY SECOND LINE
  THIS IS MY THIRD LINE
  DE4.2 THIS IS MY FOURTH LINE
  THIS IS MY FIFTH LINE
  ZEN/DING3434343
  
  FOO/234E53LLID
  THIS IS MY SECOND LINE
  THIS IS MY THIRD LINE
  THIS IS MY FIFTH LINE
  ZEN/DING3434343
  
  FOO/234E53LLID again
  THIS IS MY second SECOND LINE
  THIS IS MY second THIRD LINE
  DE4.2 THIS IS MY second FOURTH LINE
  THIS IS MY second FIFTH LINE
  ZEN/DING3434343 again
  
  SQL> exec my_app2;
  
  PL/SQL procedure successfully completed.
  
  SQL> !cat out.txt
  FOO/234E53LLID
  THIS IS MY SECOND LINE
  THIS IS MY THIRD LINE
  DE4.2 THIS IS MY FOURTH LINE
  THIS IS MY FIFTH LINE
  ZEN/DING3434343
  FOO/234E53LLID again
  THIS IS MY second SECOND LINE
  THIS IS MY second THIRD LINE
  DE4.2 THIS IS MY second FOURTH LINE
  THIS IS MY second FIFTH LINE
  ZEN/DING3434343 again
  

  You may need to change the length (buffer) + 1 depending on your platform and if you want a blank line s NLE out paragraphs, add another call to put_line after that outside of the loop in the fi l_toprint block.

  John

• Writing data in the CSV file?

  I tried, but in vain, to write data in the CSV file, with the column headers of the file labeled appropriately to each channel as we do in LabView (see attached CSV).  I know that developers should do this same in .net.  Can anyone provide a snippet of code to help me get started?  In addition, maybe there is a completely different way to do the same thing instead of writing directly to the CSV file?  (In fact, I really need to fill a table with data and who join the CSV every seconds of couple).  I have the tables already coded for each channel, but I'm still stuck on how to get it in the CSV file.  I'm coding in VB.net using Visual Studio 2012, Measurement Studio 2013 Standard.  Any help would be greatly appreciated.  Thank you.

  a csv file is nothing more than a text file

  There are many examples on how to write a text using .NET file

• Download the text file of the site domain

  I need to download a text file to a directory of a domain site.  Text file is saved  What to do next?

  On your PC, right-click on the text file, and then click on copy.

  Connect to the domain (if you don't know how, you will need to get instructions from the domain administrator on how to configure your PC to connect to the domain - specific settings that are required there and they differ by area - and you may need to be configured on the domain and given rights).  Once the installation program I would map a drive to the field to make easier access next time.  Navigate the site of field to the directory where you want the file to exist.  Right-click on the directory and click on paste.

  The file will now have been copied in the domain site directory (assuming you have the appropriate permissions on the domain server to add files in this directory - you will need to talk to the domain so that administrator it it gives you an "access denied" or "you do not have sufficient to perform this task" or a similar error message).

  That's all there is to it.

  I hope this helps.

  Good luck!

  Lorien - MCSA/MCSE/network + / has + - if this post solves your problem, please click the 'Mark as answer' or 'Useful' button at the top of this message. Marking a post as answer, or relatively useful, you help others find the answer more quickly.