matrix write ascii file?

Similar Questions

• LV RT 2009 write a file on hard disk PXI OS Pharlap converts \n \r characters

  I know, in LabVIEW help, it is said that the 'end of the line constant' in the channel palette is converted into the "end of line platform-dependent value", but where does say that the 'carriage return constant' (\r or ASCII 13d) is converted to a linefeed (\n or ASCII 10 d) on the same platform?

  I was debugging a process on my 1044 PXI chassis with embedded controller PXI-8106 running LabVIEW 2009 and created a simple text log file based for this purpose, using the 'end of the line constant' (what some people would associate with a combination of \r\n, or as I like to put it, [cr] [lf]) to delimit each row added to the file.  I was a bit surprised to see the lines delineated with the line break (\n, ASCII 10 d) instead, but not too surprised because of the opposition in the help to the substitution (for "end-of-line") on some platforms.  However, when I wrote in the file help of characters in the string to the palette of the concatenated string to a newline immediately followed of a line, I was surprised to see the combination of characters replaced in the file each time with a single power line.  I then experienced and tried to use just a single \r to delimit lines but even single \r ([cr] or 13d ASCII) characters are converted to \n (ASCII 10) characters. I now use the line break (\n) to delimit the lines in the file, but why a \r cannot be used in a text file on this platform?

  This is the expected behavior?  If this isn't the case, someone else experienced and reported this NC?  If this is the case, when it is mentioned in the documentation?

  Bill

  Bill,

  No worries - I'm still here.  I was just doing some research on my end.  You have accidentally unchecked option "EOL convert' to 'Write to File.vi text' and 'reading of text File.vi?  (Right-click on the VI and uncheck this option.)

  These explanations are available in the corresponding help files:

  Write to text file feature

  «This function adds platform end of line (EOL) characters in the elements of a table even if you right-click the service dependent and remove the check mark next to the menu item contextual EOL convert .»

  Read from text file function

  "The function converts all characters in end of line depending on the online platform of linefeed characters, except if you right-click the function and remove the check mark next to the menu item contextual EOL convert ."

  Kevin S.

  Technical sales engineer

  National Instruments

• How can I write a plugin to write a file on the SD card on Android devices?

  I would like to be able to write a file and save it to the SD card by programming with a plugin or extension for Firefox on Android devices, is that possible or is there a documentation on this?

  It would be a great place to start. There is a lot of documentation on DND to help you get started.

  https://developer.Mozilla.org/en-us/docs/extensions/Firefox_on_Android

• Problems of non-sinusoidales waves «Write to file»

  Hi people,

  I have a problem with "writing of the waveforms to file". Is attached a very simple vi which gives the error message: "error 4 has occurred open the file...". LabVIEW: end of file encountered. NOR-488: invalid argument or arguments to the function call. »

  It gives this message that I put in a new file or name of one that already exists.

  The last part is rather confusing because I do nothing with GPIB.

  I found this article in the knowledge base, but is not the same case, because it is the first time I address the file:

  http://digital.NI.com/public.nsf/WebSearch/0576444C8FD4DC0F86256E83007FA540?OpenDocument

  It's Windows 7, SP1 2013 LV.

  Any advice would be much appreciated!

  In the examples provided with LabVIEW, there is one that should be useful waveform - wave write to FIle.vi

• How to read a selected part of a large ascii file (~ 200 MB)?

  I have several large ascii files I need to read in.  These files are part of a standard test for an application that I wrote. How well my application parses files determines how the program accomplishes its main task. For a real test, the application captures live data in the form of a 2D double table and analyzes the data of this form.  This table is long of 3 million items (1 ms/s @ 3s).  I usually never treat any form of ascii file because all data is stored as TDMS using this method (though I need to update this link with a few critical changes). (Thank you again Ben)

  Ascii files I have to read all have two rows of data from the header, followed a ~ 8 million lines of data representing the data I capture in general.  Each line contains point data and a value of accumulated time.  I need to load each file separately, analyze the data within, and communicate the results.  The part that I need help for loading of the file.  So far, I was able to load a file without memory problems.  A stay is similar to a real test, I need actually only 3 million lines for analysis.  But I have to be able to select the 3 million lines by time values in the file.  Technically, I only need the single column of data and the frequency of sampling, represented by time values.

  How can I select a specific section of an ascii file and read them in LabVIEW as a double 2D array?  Which is possible for 3 million points of data without crippling the system using all the memory just to accomplish this task?  An alternative version of 'last resort' would be to run a separate program to create a file DDHN that I could then read and go from there.  But I prefer to read the file directly to my request.

  I'm running on an HP EliteBook 8540w with Win 7 Enterprise (64-bit), i7 CPU bicoeur (2.67 GHz) with 8 GB of RAM and 32-bit LV2011.

  Thank you

  Scott

  
  

• Config data write to File.VI missing in LV 2009

  In the earlier version LV 2009 files Config File (vi.lib\utility\config.llb) it was possible to invoke a write to disk using "Config data write to File.vi" were found in the llb above.

  In 2009 the Config of the LV functions files have been updated and the VI above failed.

  I logged on SR # 1437437 with the support of NEITHER and they are investigating a workaround solution.

  Q

  Anyone out there using the function NOT on the pallet config file?

  Ben

  It's a trend that began with the generation tool compared to the 8.6 (which I assume you remember) and will probably continue as NEITHER utility refactors screws in libraries.

  You should read this thread that addresses the issue in general and specifically refers to the config screws as well. Having not played with these screws inside, I have no specific ideas.

• Write backup files as reading takes place in the event of computer failure

  Hello

  My application involves sometimes to test outdoors.  We have a PC equipment and robust data acquisition.  I'm in the Northeast, where in recent weeks were cold and we had to do a test on the outside.  Long story short, in the middle of the test the computer shut down (probably because it was too cold for the computer according to the data sheet) and I lost all the data from the sensor.  The coomputer works fine BTW when I brought it back inside.

  The reason for which the data have been lost was because the program never completed and so the function that creates the data file has a chance to run.  Now, the data acquisition card, we used is very old and obsolete.  I am trying to upgrade the equipment with components or (PCI-6221) and a box of CSC-2345 with modules for two load cells load cells.  At the same time, I am writing a LabVIEW application that improves the old, obsolete program.

  I want the application to write a file in spreadsheet with all the information of the sensor continuously as the test proceeds in the event of failure of the computer midtest.  In this way, I at least have some saved data.  I explained all this to another engineer here and he says that he cannot make this way at high sampling rates (I want to run the program at 1 kHz for 60 seconds).  His reason was that the writing on file screws up the waveforms that we measure because the file must be opened, the data gets written and then closed for each line of data points.  He argues that the resources of the computer will be linked up as it tries to write the file while the program is data acquisition and store these data in a buffer.

  So my question is: what is the recommended architecture to write a backup file as a test occurs with a high (1 kHz and 10 kHz) sample rate when the computer shuts down or some other failure?  Also, what are the limits of performance when writing data to a file within the same line as the VI 'read '?

  Thank you.

  Rate from 1 to 10 kHz are in fact rather slow. You can use an architecture of producer/consumer to save text files, and there is simply no reason to open and close files permanently. With DAQmx, you can listen directly to the disk at much higher rates.

• Cannot write the file in the destination folder.

  Installed the new printer of brothers. PDF (file) scanning to e-mail could sweep old printer. Error code (CC3-103-00030302). Says "failed to write the file in 'Destination folder',

  Got, it works.  Here are some things I've done.  I'm sure that some of them are useless holes to leave open, but its not working.  These settings can be removed that time to identify exactly what is required to have fixed.

  Windows 7 64-bit Brother MFC-J615W network Scan to Setup

  1 open the windows firewall ports UDP 137, 54925 & 54926

  2. set the read/write for the guests and users permissions

  3. uninstall/reinstall

  4. in CC3 configuration of SCANNING has two tabs; a device and software.  You must pay attention to the directory/s you want to use.

  Now, I am very satisfied with this printer.  This is my first brother and I don't think that the last to the first impression.  I have now this printer works wirelessly with a Ubuntu Netbook Remix, a MacBook 10.5 OS and Windows 7 64-bit.

  * I am also able to scan in PDF without problem.

  See you soon

• WebWorks 2.0 gold and webkitRequestFileSystem to write a file doesn't work

  Is there a problem with webworks 2.0 Gold with webkitRequestFileSystem to write a file?

  This code works fine on WebWors 1.0, now with 2.0 or OnInitFsWrite is not executed.

  blackberry.io.sandbox = false;
  window.webkitRequestFileSystem(PERSISTENT, 1024 * 1024, onInitFsWrite, errorHandler);
  
  function onInitFsWrite(fs) {
  
  ....
  

  And of course, I added:

  -permit access_shared on config.xml

  - and the com.blackberry.io plugin

  Thanks in advance.

  Thanks, that was helpful. I can now reproduce.

  Please try this workaround

  function Backup() {
      showCustomToast('Backup started!!', '');
      blackberry.io.sandbox = false;
          window.requestAnimationFrame(function () {
          window.webkitRequestFileSystem(window.PERSISTENT, 1024 * 1024, onInitFsWriteBackup, errorHandler);
          });
  }
  

• write the file

  Hello, I am trying to write to a file here is a clip

  FILE * f = fopen("' / shared/documents/save.txt ', 'w'");

  if (f is NOTHING) {

  fprintf (stderr, "failed to create output.txt...\n");

  _exit(2) (1) ;

  }

  fprintf (f, 'Hello World');

  Close (f) ;

  The error I get is impossible to create output.txt why it is not write to this location?

  & If I write for

  fopen (".") ("/app/native/save.txt", "w"); He writes the file but I cannot find the location of the device.
  What escapes me as to why he wrote another the doesnot?

  Thank you

  Request/grant permissions 'Files' in the bar - descriptor.xml?

  What is the error you get?

• How to write a file using BB 10 HTML5WebWorks

  Hello

  How to write a file using Blackberry 10 HTML5WebWorks API.

  https://developer.BlackBerry.com/HTML5/API/BlackBerry.IO.file.html#.SaveFile

  The example above does not work in BB 10.

  Please guide me.

  Of course, look at line 95 of this file:

  https://github.com/BlackBerry/BB10-WebWorks-samples/BLOB/master/invoke/invoker/invocations.js

• what object to use to write uploaded files to the server?

  Hello

  My question is trivial, but I do not know how to solve. I need to download file *.xml server on my cell phone and write it on the mobile. There are input/output streams to read/write. OK, but what I should write the file I've already read? byte [] table? but I don't know what should be the size... cause, I guess I can't write data directly on my mobile? If Yes, can someone suggest me how?

  concerning

  Oh God, I'm so stupid! It's so http:

  _httpConnection.setRequestMethod ("post");

  _httpConnection.getResponseCode ();

  works great!

  concerning

• How to a write-protected file?

  How can I make a write-protected file

  & I also want to prevent renaming

  file should be used on different devices, such as pc, mobile etc, so, I want to, that nothing can make no change in

  A simple and quick way to create a file "write protected" is to make it "read only".

  Right click on the file

  Properties

  On the tick [general tab] 'read only '.

  Click 'Apply' then

  The file is now write protected.

  Also, see - http://technet.microsoft.com/en-us/library/cc754344.aspx and http://support.microsoft.com/kb/308419/en-gb (more info about XP) - "write attributes.

• Read file, reformat the data, write new file

  Oracle 11g PL/SQL.

  I have a need to read an existing file, reformat the drive and write to a new file format.

  My solution has been to read the file using utl_file and store it in an array of procedure1.  There is a column of data to hold 1000 bytes of data for each line of the file.

  Then in procedure2, read the data through a cursor column, with a certain logic and fill in the fields of a record type object by using the function substr on the data column.  The type of record object has about 80 columns, all TANK types.  The OUT of procedure2 parameter would be the type of record object.

  Then in procedure3, record object would be the parameter, and this recording would be used to write the new line of the file.  The problem I see now is that I can't convert the object record type a TANK in order to write the file.  So that would mean that I have to reference each of the 80 columns once again in procedure 3 and concatenate each for the parameter buffer utl_file.put_file.

  I don't want to assign values for columns of 80 exit more than once because that makes the code very long and detailed, so I thought that I assign values to the time in the record object, then pass the record object to the write file procedure.

  I'm looking for suggestions on a better design, or have I missed some very basic code design?

  Thank you.

  Thanks for all the great suggestions.

  The original file is from a COBOL program.  What I ended up doing was reference and readability, I have defined/filled all fields of provision of COBOL in my program and then concatenated fields during the construction of the output string.  It's a bit verbose, since the 80s fields appear twice, but the code is clear and easy to understand for support purposes.

  Thanks again for all the thoughtful suggestions.

• Write the file size limit shared hgfs - Windows guest Linux host

  I'm running an Oracle 6.2 32-bit linux guest under a Windows XP host.  I have a shared folder between Windows and Linux comments host configuration.  The Windows host can store large files (NTFS).  I find that while I can read large files (4 Gb +) shared Linux folder I can't write large files.  Not check the exact figure, but I can not write a 2 GB file, although I can write a smaller file if the basic functionality of shared folder is there and works well.  He comes back with the error there is not enough free space if I try a large file.

  for example, I can get a DVD of 4 GB .iso file in the folder shared Linux loop and see the content but I can't write this file to the folder that is shared by the client.

  This seems to be a limitation of the VMWare tools (I use VMwareTools - 8.6.5 - 621624 to the client).

  Could not find any documentation on this limit - a few other people who have had the same problem.

  Anyone know if there is a documented limitation and if there is a work around?

  CW2 wrote: does anyone know if there is a documented limitation and if there is a work around?

  I normally don't use characteristic VMware shared folders (just to many questions over the years) instead use industry Standard actions SMB/CIFS, because I am anyway in a network industry Standard environment and suggest that he as a solution in your case, if the functionality of VMware shared folders is not offering you need/want performance.