Convert null spaces?

Similar Questions

• Matrix of null space

  Hello

  I have a question about Equation.vi linear solve.

  Given a system of equations 8 to 9 unknowns, form: AX = Y, A is a matrix known 8 x 9 and X is a vector of 9 x 1 (unknown) and Y = 0. I would like to find space void of this equation system. We have 9 vectors columns each with 8 elements. Columns vectors are dependent lineary so there must be a linear combination of them. So I would like to find the X by solving for the 8 x 9 matrix null space.

  Is the linear equation solving is capable for this purpose?

  Hi D60!

  If you double-click the linear solve Equation.vi and take a look on the block diagram.

  You will see that, depending on the type of your matrix, functions at different riding are used. You can double-click on these features too, to see how it works.

  I think that the best way to get the matrix null space is the function null of the Mathsrcipt node: http://zone.ni.com/reference/en-XX/help/373123C-01/lvtextmath/msfunc_null/

  More information about the Mathscript node: http://www.ni.com/white-paper/7572/en

  Please let me know if my suggestion is useful.

  Best regards

• convert NULL values to 0

  Hi guys
  
  am on 10g
  
  I have a Table with 7 fields (all numbers).
  
  Basically, I'm looking for a way to convert NULL values to 0 [zero], a process, a client wants.
  
  So no matter how the Table is large, that I must be able to do, what is the best way to do this? Example SQL? PL/SQL?
  
  Thank you.

  Using NVL?

  SQL> select nvl(null, '0') from dual;
  
  N
  -
  0
  
  1 row selected.
  

  NULL for all related functions:
  http://www.Oracle-base.com/articles/Misc/NullRelatedFunctions.php

• What happened to single space after a period?

  I don't see the option to keep me out two spaces after a period in 2015 of FrameMaker. Of course I can get spell check to fix it later, but it was an option previously to convert double spaces spaces simple while I type. I think this has also worked in mid-sentence too.

  Thank you

  Gerry

  It is a specific setting of the document. Open the document and go to > Format > Document > text Options...

  The "Text Options" dialog box appears. Select 'Smart spaces' and click 'apply '. FrameMaker will now prevent you from typing in two normal spaces after the other:

  

  Please note that this does not protect you insert two spaces for example via search/replace.

• Conversion of NULL values to 0 in graphics

  Hello again everyone,

  I use Oracle Business Intelligence 11.1.1.7.131017.

  In our chart, we have 2 lines with made cumulative information, but whenever this information is equal to 0, it will not draw the line, only for items > 0.

  I tried to change the data format to: #0;-#; 0 but it does not work...

  Although the table indicates 0 where NULL values are supposed to be, when he tries to draw the graph, the line appears only for values > 0...

  Is it possible to convert NULL values to 0 in graphics?

  Thanks a lot for all the help and have a nice day!

  Kind regards

  Frederico Barracha.

  Hi Fred,.

  It's not because you have NULL values in the table. This is because there is no entry in the warehouse.

  For example, you wise date data for March 1 to March 5. in this March 4 isn't any data in the table. That is to say, there is no entry for March 4. In this case, you can see graphs broken. You can follow one of the below approach.

  Combine a similar request and add the column date dimension of time where all date entries are there and all the other Null columns. It will be visible from the graph in uninterrupted.

  Another thing to do is cross join with a date column so that the data will come for all dates.

• Maintain the same name with spaces

  I'm doing some operations on images batch. Everything works fine, but I noticed that the name of the image are changed.

  When I save my image, if the name contains spaces, photoshop automatically converts this space for ' - '. I want to keep my name of the image, because I have this information stored in the database and after the name change, I can't find the correct path to the image.

  For example, an image called "Google Analytics.png" becomes "Google - Analytics.png", but I don't want that extra ' - '.

  It's my routine of script:

  function SavePNG(saveFile){
      var file = new File(saveFile);
  
      var pngOpts = new ExportOptionsSaveForWeb; 
  
      pngOpts.format = SaveDocumentType.PNG
      pngOpts.PNG8 = false; 
      pngOpts.transparency = false; 
      pngOpts.interlaced = false; 
      pngOpts.quality = 100;
  
  
      app.activeDocument.exportDocument(file,ExportType.SAVEFORWEB,pngOpts); 
  }
  
  
  

  Which is controlled by saveForWeb preferences in Photoshop. As far as I know that these preferences can be changed in the GUI.

  Enjoying a beautiful image, choose file-save for Web... Then in the drop of the SFW dialog choose Edit output settings... In this dialog choose files in the dropdownlist in the top control box, then uncheck Unix in the compatibility section of file name. This must only be done once the parameters to be sticky.

  Once this setting has been changed your code needs to export the file without the underline.

• From 0 to NULL

  Hi buddies!
  
  I am faced with a situation where I need to convert the values 0 to empty string or NULL.
  
  For example,.
  
  I have a 3 column table Testing
  
  column at the beginning, middle, end
  
  They are of type varchar2 (20) that contains numbers.
  
  If the column had to display 0, I should replace it with NULL.
  
  How can I do that. Please guide me.
  
  Should I provide more details?
  
  Thank you.
  
  Benard

  Use a DECODING

  Thus

  decode(col_1,'0',NULL,col_1)
  

  converts null values for '0', but if the line is not a '0', it returns the actual value.

  Hemant K Collette

• Re: Resize Partitions on Satellite L670-12J

  Purpose:
  Having a single 500 GB partition for the system and data.

  Current situation:
  Partition 1 - 232 GB system
  Partition the HARD drive recovery data contains - Data 232 GB - 2

  What I've done so far:
  I created 3 DVD of the recovery partition recovery using the toshiba software.
  Restarted and booted from the recovery DVD made, however no option me is given during the HARD drive recovery process that allows to change the size of the created partitions (fixed size seems to be 232 GB).

  After you complete the recovery process, I tried resize the partition in disk management. I formatted the data partition and converted to unallocated space, but the option to extend the system partition is not available.

  > After you complete the recovery process, I tried resize the partition in disk management. I formatted the data partition and converted to
  > space unallocated, but the option to extend the system partition is not available.

  I recommend you to use a program called Paragon Partition Manager. Download and install. Then, choose option restribute space in the program. Thus, you'll be able to expand the local space on C: it narrows on local d

• How to display correct sRGB images in applications unmanaged Vista with a wide range of display?

  Hi all

  This isn't a simple question, and I don't expect the answers to be simple either.

  1. I have vista home premium
  2. I have a wide range of LCD, a screen with a significantly wider than the sRGB color profile (sometimes incorrectly called a display Adobe RGB)
  3. I have it calibrated with a Spyder3Elite
  4. Images look GREAT in color managed applications (including the windows photo gallery)
  5. Photos have air saturated outside color management applications, even if they are sRGB images.

  Here's what I need.  If an application is not color management then Vista should apply the sRGB profile AND map it on my monitor profile.

  What is happening now is the image is mapped directly to the color space of the monitor and let the oversaturated colors. The end result is that all images within windows and Internet Explorer are saturated. The only solution for navigation is to use a plugin to make the management of the colours of firefox or use safari.

  BTW. Even if windows photo gallery is the color of the slide show management is not argghhh.

  I have looked at the Advanced tab on the Vista color management, but did not find ANY documentation on the 'device profile' or 'View profile status' settings. They seem to be associated with what I need, but there is nothing in the help about it. What do mean? second question, sorry)

  Concerning
  JzE

  PS. I checked the color management using the 4 images at http://www.color.org/version4html.xalter. I have saved their drive and use them as a reference to quickly check if an application is successful or not color.

  I received this reply from Michael Bourgoin. Thank you, Michael, we now have at least one answer...

  Hi J___,.

  I wish I could give you some good news, but the fact is that most of the components of windows and the Windows desktop are always not color management. The Windows Photo Gallery and Windows Live Photo Gallery are the only elements of the Windows color reach the display profile. Most office applications will honor profiles embedded in images, source but then they convert to sRGB and throw it on the screen. And IE is not even honor profiles embedded in images...

  That you have determined, the settings in the color management control panel affect only the applications of color management. The settings in the tab Cpl Advanced CM are used to provide default values for the missing profiles needed for the creation of color transformation for WCS in color management applications. Again not to help.

  Regarding the application non-management of color management color "behind their backs" goes, it's very difficult to do in general. There is no easy way for the OS to tell if the color data that renders an application has already been color managed, or not.

  We have a technology called high color which will be in Windows 7 that aims to solve this problem. Color high-definition given color are first converted into a color space extended which uses the sRGB primaries, but which allows the values less than 0.0 and 1.0 above (let's call it sRGB-XR). Colourful is closely related to xvYCC and X.v.color of Sony. Range wide color data can be converted in this space with no loss. Displays (and maps) that support colourful are necessary to convert this space sRGB-XR internally to their native color space. With color high definition, the United Nations - RGB color management is treated as sRGB, which is unchanged when converted to sRGB-XR space (it's all in the [0.1] part of the encoding). But then peripheral compatible High Color will map correctly that in their native space, so the sRGB data never get oversaturated in being treated as if she was already in wide range native of screen space (as happens now). And any image content real wide range gets correctly mapped to take advantage of the wide range of the screen. The plumbing for High Color is under Windows 7. However, the Desktop Window Manager could not implement a high color support in time (this requires the use of a fixed or floating point rendering surface), if the Bureau will not use color high definition, however, in Win7. Maybe the next time.

  I would like to be able to give more excuses, explanations and communities.

  Best regards

  Michael Bourgoin
  Program Manager | Experience Windows & Imaging Team color
  Microsoft Corporation

• simple text to the acceptability of url?

  I want to convert the spaces containing simple text, url, so that he can bhi added to the browser

  as I am adding text to share the Tweets: TWITTER_URL + "Hello this is sample text."

  But how can I convert the string in characters acceptable browser?

  import java.io.ByteArrayOutputStream;
  import java.io.IOException;
  import java.io.OutputStreamWriter;
  import java.io.UnsupportedEncodingException;
  
  /**
   * Adapted from J2SE java.net.URLEncoder.
   */
  public class URLEncoder {
  
    public static String encode(String s, String enc)
      throws UnsupportedEncodingException {
  
      boolean needToChange = false;
      boolean wroteUnencodedChar = false;
      int maxBytesPerChar = 10; // rather arbitrary limit, but safe for now
        StringBuffer out = new StringBuffer(s.length());
      ByteArrayOutputStream buf = new ByteArrayOutputStream(maxBytesPerChar);
  
      OutputStreamWriter writer = new OutputStreamWriter(buf, enc);
  
      for (int i = 0; i < s.length(); i++) {
          int c = (int) s.charAt(i);
          //System.out.println("Examining character: " + c);
          if (dontNeedEncoding(c)) {
          if (c == ' ') {
              c = '+';
              needToChange = true;
          }
          //System.out.println("Storing: " + c);
          out.append((char)c);
          wroteUnencodedChar = true;
          } else {
          // convert to external encoding before hex conversion
          try {
              if (wroteUnencodedChar) { // Fix for 4407610
                  writer = new OutputStreamWriter(buf, enc);
              wroteUnencodedChar = false;
              }
              writer.write(c);
              /*
               * If this character represents the start of a Unicode
               * surrogate pair, then pass in two characters. It's not
               * clear what should be done if a bytes reserved in the
               * surrogate pairs range occurs outside of a legal
               * surrogate pair. For now, just treat it as if it were
               * any other character.
               */
              if (c >= 0xD800 && c <= 0xDBFF) {
              /*
                System.out.println(Integer.toHexString(c)
                + " is high surrogate");
              */
              if ( (i+1) < s.length()) {
                  int d = (int) s.charAt(i+1);
                  /*
                    System.out.println("\tExamining "
                    + Integer.toHexString(d));
                  */
                  if (d >= 0xDC00 && d <= 0xDFFF) {
                  /*
                    System.out.println("\t"
                    + Integer.toHexString(d)
                    + " is low surrogate");
                  */
                  writer.write(d);
                  i++;
                  }
              }
              }
              writer.flush();
          } catch(IOException e) {
              buf.reset();
              continue;
          }
          byte[] ba = buf.toByteArray();
          for (int j = 0; j < ba.length; j++) {
              out.append('%');
              char ch = CCharacter.forDigit((ba[j] >> 4) & 0xF, 16);
              // converting to use uppercase letter as part of
              // the hex value if ch is a letter.
  //            if (Character.isLetter(ch)) {
  //            ch -= caseDiff;
  //            }
              out.append(ch);
              ch = CCharacter.forDigit(ba[j] & 0xF, 16);
  //            if (Character.isLetter(ch)) {
  //            ch -= caseDiff;
  //            }
              out.append(ch);
          }
          buf.reset();
          needToChange = true;
          }
      }
  
      return (needToChange? out.toString() : s);
    }
  
   static class CCharacter {
      public static char forDigit(int digit, int radix) {
        if ((digit >= radix) || (digit < 0)) {
            return '\0';
        }
        if ((radix < Character.MIN_RADIX) || (radix > Character.MAX_RADIX)) {
            return '\0';
        }
        if (digit < 10) {
            return (char)('0' + digit);
        }
        return (char)('a' - 10 + digit);
    }
    }
    public static boolean dontNeedEncoding(int ch){
      int len = _dontNeedEncoding.length();
      boolean en = false;
      for(int i =0;i< len;i++){
        if(_dontNeedEncoding.charAt(i) == ch)
        {
          en = true;
          break;
        }
      }
  
      return en;
    }
    //private static final int caseDiff = ('a' - 'A');
    private static String _dontNeedEncoding = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ -_.*";
  
    /**
     * @param args  test string
     */
    public static void main(String[] args) {
      String s = args[0];
      try {
        System.out.println(encode(s,"UTF-8"));
      } catch (UnsupportedEncodingException e) {
      }
    }
  }
  

• BlackBerry Smartphone 8700 g Internet link problem

  I'm new to Blackberry, I'm the model above everything works well except internet browsing, Im on vodafone Live. I can at most of the major web sites including Google, BBC etc.

  But... When I try to go to a link from google or another search engine, I get a message that says:

  Cannot convert date: WML Converter null

  Any ideas on this one which is causing that and, hopefully, solution

  Thank you very much waiting for Paul

  It seems that if you use their wap browser.

  On your BlackBerry, go to Options > Advanced > browser > and set your default browser to the Internet browser configuration.

• MSAcess migrate - Sql program 4.1

  Hi all

  I'm trying to migrate an Access 2003 database using the SQL Developer 4.1 migration tool

  I have, by and large, made every step and hit the same problem on this (unanswered) wire.

  The migration wizard stops. display dialog box:

  Shares of migration have failed. Check the statements of migration for more details: convert null

  Look at the tab of Capture Issues of this migration project, we see "making the column default clause translation: FAILED: Database Migration: FAILED.  Errors of Java NullPointerException and Convertnull.

  The mdb I try to migrate (and otherwise) contains several tables with relationships. So I tried also to migrate a table very simple one / one column (with no default) database and it does not always work with the same error.

  Can anyone provide a solution? I scoured internet and have found this one and only the thread that describes the same problem I have. The error message which is produced by the migration tool seems to lack sorely lacking in detail as to where the mistake has been hit, and what exactly is the error (as for example, what was the value he was trying to translate for example)

  Thanks in advance.

  Migration of access support has been deprecated/deleted. Your best bet is to use an older version.

• Export in bulk outside activities?

  Hello

  I use other api to create activities to unsubscribe. (we have a form hosted on our site and others in eloqua, I'm trying to manage an opt-out on my site, then make sure that if I have a contact in EQ for e-mail that I remove their EQ as well.) I can see that the external activity has been added to the eloqua system contact. Now, I am using bulk export is to raise a list of activities to unsubscribe but my outdoor activities never see the results.

  Outdoor activity:

  

  Cancels the subscription.

  

  Here's my query json to create activity. (THE POST) https://secure.Eloqua.com/API/rest/2.0/data/activity

  {

  'type': 'activity ',.

  'activityDate': '1429029915 ',.

  'activityType': 'EmailUnsubscribe ',.

  "assetType": "email"

  "assetName": "CustomerConnections",

  "campaignId": 368.

  "contactId": "812159".

  }

  The big docs say that the following type can be exported using the Api 2.0 in bulk.

  The Eloqua elements are:

  Contacts

  Accounts

  Custom objects

  Activity

  Outdoor activities

  Here is the json sent to the major part of the api (POST) https://secure.eloqua.com/api/bulk/2.0/activities/exports/

  {

  "name': 'general churn."

  'fields': {}

  "ActivityId": "{{Activity.Id}}"

  'ActivityDate': "{{Activity.CreatedAt}}"

  'EmailAddress': "{{Activity.Field (EmailAddress)}}"

  'ActivityType': "{{Activity.Type}}"

  'EmailRecipientId': '{{Activity.Field (EmailRecipientId)}}.

  "AssetType": "{{Activity.Asset.Type}}"

  "AssetName": "{{Activity.Asset.Name}}"

  "CampaignId": "{{Activity.Campaign.Id}}.

  },

  "filter': '"{{Activity.Type}}"="Unsubscribe"AND '{{Activity.CreatedAt}}' > = ' 13 / 04/2015 ' AND"{{Activity.CreatedAt}}"< = ' 15 / 04/2015 ',"

  "uri": null;

  "createdBy": null;

  'converted': null,

  "updatedBy": null;

  "updatedAt": null;

  'secondsToRetainData': 0

  }

  Any help would be greatly appreciated.

  Thank you

  KC

  I had the same question a few months back. The answer was that it is not possible to export outdoor activities.

• Different handling - FM11 to FM2015 carriage return

  Hello

  There is a change in FM11 to FM2015 with import XML on the carriage returns. I was wondering if someone could explain it. I don't know if it is related to the other FM2015 spaces talks to date.

  Here is my XML file with zero whitespace (carriage returns), open with default application and no validation:

  <?xml version="1.0" encoding="UTF-8"?><test>
  <p>TEST</p>
  <p>TEST</p><p>TEST</p>
  </test>
  

  In FM11, it opens as I expect:

  

  In FM2015, I get a paragraph with a unique space where the carriage return is:

  

  This will not occur when I use a structure with normal posting app. Can someone explain what has changed?

  Thank you

  Russ

  Russ,

  I opened your test file in 2015 FM with the default setting (enabled) for RemoveExtraWhiteSpacesOnXMLImport, and with it set to Off. Behavior that I got was slightly different that you mentioned, but I think it's okay.

  When enabled, the document window displays 3 FGP. the Structure view shows a with 3

  s.

  When the option is disabled, the document window not display 4 FGP you reported, but 6. Three of them contain a

  element with the text "TEST"; the others are ranges of text in the element, each containing a single space. All these beaches text correspond to the line breaks in the input document: after the start of tag, after the end tag for the first

  and after the end of the last tag

  .

  The XML recommendation requires that all white space is significant. As a result, FM is correct not get rid. Convert the spaces line breaks is consistent with the treatment of FM of line breaks in a paragraph.

  When you open the same file using a DTD which does not allow for text ranges between

  elements, FM does not create the text ranges.

  While surprising at first, I think that the behavior is correct. So I don't mind test in FM 11 or 12 FM.

  The problem is that if you want a white space after xrefs treated properly, you must disable the option and if you want to avoid breaks come as data characters, you should enable the option of line. The solutions are:

  (1) use a DTD

  (2) to preprocess the entry to remove XML format line breaks

  (3) to preprocess the entry to change a space after an xref to a character reference

  (4) Hope Adobe fixes the bug soon

  -Lynne

• My mind is wiped out. I'll put up pages in Photoshop 9.0 to be then placed in InDesign 4.0 for professional printing. Can you help me configure the proper color settings, and what PDF preset to use. And output parameters, etc. Thanx.

  My mind is wiped out. I'll implement the color pages in Photoshop 9.0 to be then placed in InDesign 4.0 for commercial printing in book form. Can you help me with the settings of color in Photoshop, that is to incorporate the color profile; convert in space work, Adobe RGB, etc. and which PDF preset to use, i.e. printing, PDF / X - 1 or 3, etc. Also, what I have to select the output settings such as the conversion of colors with the Destination or the printer deals with that. I know I asked a lot, so thanks in advance for any input or advice.

  Best regards, ScottyB34

  What are the settings of your printer wants? Some may deal with sRGB some want Adobe RGB Ctrl/Cmd-Shift-k in Photoshop, then choose North Amercian prepress 2

  He'll take care of the tags for you, or if sRGB is important, Norh American General Purpose 2.

  Here is a summary of the settings PDF and their meaning:

  When you are ready to create a PDF file from an application such as Illustrator or InDesign Adobe, we give you a list of the predefined PDF settings from which to choose. Well how do you decide which is the right choice? Well, let me explain what they do.

  Let's start with the smallest file size and the name of the type of the story. It is compatible with Acrobat 6, which means that anyone who has Reader or Acrobat 6 or above will be able to open the file. Now it converts everything in sRGB color which is a common space for color monitor.

  All RGB is truncated to sRGB, CMYK and spot colors also. So that means if you have a job to print, you can see some color shifts in this outgoing PDF. You must decide whether it is acceptable. He can't stand live transparency, not flattened. It downsize image content to 100 pixels per inch and this is part of how she made a reduced file size. It also uses aggressive JPEG compression of poor quality on the content of the image. So, you can see some of these rectangular JPEG artifacts.

  But it is how it gives you a reduced file size, and results are appropriate to be posted online or attached to an email.

  High quality printing has compatibility with Acrobat 5 and above. There is no color conversion. RGB RGB stays, rest spot, stays of CMYK CMYK spot and it supports live, not flattened transparency. It does not perform some downsampling to 300 pixels per inch. So, for example, if you placed an image which was 300 ppi and then set to scale up to 50 percent there actually a res then 600 pixels per inch.

  Well, this process would take half out these pixels. Therefore, it can create larger files but that makes it suitable for in the House of printing or sending Let's say a remote office if they want to print we tell cells leaves, or brochures, or something like. It's beautiful out on an internal printer.

  Print quality and high quality printing have similar names, so this may be a bit confusing, but print quality has compatibility with Acrobat 5 or higher. It converts the content of RGB to CMYK destination values according to what you specify as the destination.

  It is usually SWOP, S-W-O-p. It supports live, not flattened transparency. It performs the subsampling bicubic to 300 pixels per inch and because that it keeps at least 300 pixels per inch, which means that it can create some large files, but it is suitable for professional printing.

  Then we start to get into the presets named 'X '. 'X' is now for Exchange. They agree on specifications and the idea is to have a set of specifications if a PDF file is compliant to these specifications, we know it's going to be printable.

  We know that imaging devices are going to treat them properly. So this goes back to 2001, and which can seem a bit old, but bear with me. PDF/X-1 has a compatibility with Acrobat 4. I know, it sounds old. It converts RGB to CMYK content, it keeps the content of good tones. It flattens transparency. Downsize it at 300 pixels per inch. It can large enough crat files if you have large size images in your project and that it is suitable for professional printing.

  The idea behind X-1 is if you send a PDF file to an unknown printer, you do not know what are their capabilities, you send abroad, it will be able to be photographed on any device. No matter the age, it is, they can print. Over the years, the concepts of Exchange became more sophisticated the workflow and devices become more sophisticated.

  SP PDF / X-3: 2002, remains compatible with Acrobat 4 and that means that it flattens transparency, but it does not perform any color conversion.

  This means that it maintains RGB content, place remains in place, rest of CMYK CMYK. He still performed bicubic downsampling at 300 pixels per inch, and therefore, it can create large files. But this is suitable for commercial printing, if the printer signals you that it is present RGB content is correct.

  PDF / X-4: 2008 is compatible with Acrobat 7 and later. See, we're getting more modern. No color conversion. RGB RGB stays, stays CMYK CMYK, spot rest spot and it supports live, not flattened transparency.

  He still performs bicubic downsampling. Therefore, it can create large files because it maintains the pieces of the image to 300 pixels per inch or higher and it is suitable for commercial printing, as long as the printer tells you that RGB content is not serious and dynamic transparency is acceptable. Some older workflow does not support dynamic transparency, or they treat well, and that's why always ask. It is a special case in Illustrator, something called default Illustrator. Its compatibility is Acrobat 6 or higher.

  It does not perform the color conversion, everything continues like this. It supports transparency live, not flattened, and it also contains the original, editable Illustrator file in the PDF file. It preserves layers and it may be return, can be reopened safely in Illustrator and it's really the only PDF format you can do with safely. But it can create larger files, because you sort of two files for the price of one, they sometimes get huge.

  So what predefined PDF is Right For You? Well, if you want to send for printing, the first thing you should do is to ask your printer how they want the created PDF.

  They should be able to give you the plug for the creation of the PDF file. They may be able to give you job options files you can simply import and use as your preset target. But if it's a stranger the printer or the printer for some reason any said, well, I don't know, just make a PDF and this happens, well, choose the lowest common denominator to the PDF/X-1 test. Anyone can image that. If it is a more modern printer and up to date, especially if you send it to someone who uses digital presses, PDF/X-4 should be safe.

  I always go back to point one, ask the printer. If you send it as an attachment or you're going to post online, well, smaller size of file is a pretty clear choice. But remember this, you can start with one of these predefined parameters, and you can always edit it to customize your specific needs. So get to know the presets, understand the destiny of the PDF you create, and then make the best PDF that you can.