Problems with projections in QGIS 2.2 on a Windows Vista? I use QGIS 2.2 on Windows 8, and the same QGIS 2.2 has been installed on a computer with Windows Vista.  On the Windows 8 everything works just fine, but something is wrong on the Windows Vista. All the projections that I can choose from on the Windows 8 isn't accessable from the Vista computer?  The national projection that all our data are in, can not be chosen on the Vista? No problem on the Windows 8.   What may we have done wrong? We tried to reinstall QGIS on the Windows Vista, but it didn't help.   Something else we can try?    EDIT: I tried installing QGIS in a folder without blanks, as suggested in a comment below. But the problem is still there. I still can't use the right projection on the Vista. The answer in the other question is too complicated for me.    From the postinstall.log (partly in Swedish):  "C:\QGIS_Valmiera\QGIS" „r inte ett internt kommando, externt kommando, program eller kommandofil. OSGEO4W home is C:\QGIS_Valmiera\QGIS Valmiera Synchronizing CRS database with GDAL/PROJ definitions. Load srs db from: C:/QGIS_Valmiera/QGIS Valmiera/apps/qgis/./resources/srs.db QFSFileEngine::open: No file name specified QFSFileEngine::open: No file name specified QFSFileEngine::open: No file name specified QFSFileEngine::open: No file name specified QFSFileEngine::open: No file name specified Loading epsg.wkt 0 WKTs loaded CRS update (inserted:0 updated:0 deleted:3631 errors:0) No CRS updates were necessary.
Predefined Coordinate Systems missing in QGIS 2 in QGis 1.8 were lots of predefined coordinate systems (national projections). Where have they all gone in qgis 2.0? I specifically need the Gauß-Krüger-Projections Zone 1 to 5.  Is there any plugin to load those coordinate systems?
Why does the square root of a square involve the plus-minus sign? If $\sqrt{x^2}$ can be simplified as follows:  $\sqrt{x^2} = (x^2)^\frac{1}{2} = x^{\frac{2}{1}\times\frac{1}{2}} =x^\frac{2}{2} = x^1 = x$  Then why would $\sqrt{x^2} = \pm x$? What does negative R-squared mean? Let's say I have some data, and then I fit the data with a model (a non-linear regression). Then I calculate the R-squared ($R^2$).  When R-squared is negative, what does that mean? Does that mean my model is bad? I know the range of $R^2$ can be [-1,1]. When $R^2$ is 0, what does that mean as well? How long can a temporary suspension be? I ran into a user profile that states:  This account is  to cool down. The suspension period ends on Apr 27 '24 at 7:54  At first, it seemed like a somewhat longish suspension period.  Referring to  reveals:  Depending on the severity of the problem behavior — and at the complete discretion of the moderator — your account will be placed in timed suspension for anywhere from 1 to 365 days.  This indicates that temporary suspensions can last upto a year.  Additionally, the  doesn't give any other information about the timed suspension other than the link to the wiki above. I am keen to know whether the example above (wherein the account has been suspended until 2024) is a one-off case or is it a case of documentation being obsolete? Printing all instances of a class fatal: bad ownership or modes for chroot directory component "/" in SFTP I've been trying to configure sftp in a debian server.sshd_config:  Subsystem sftp internal-sftp  UsePAM no  Match User sftpUser ChrootDirectory /users/sftp/sftpUser ForceCommand internal-sftp AllowTcpForwarding no X11Forwarding no   Directories:   drwxr-xr-x   3 root      root      4096 Oct 20 10:59 users   drwxr-xr-x   3 root      root      4096 Oct 20 11:00 sftp   drwxr-xr-x   2 root      root      4096 Oct 20 11:00 sftpUser   cat /var/log/auth.log  Oct 20 10:58:22 w1 sshd[24634]: Accepted password for sftpUser from 201.156.103.213 port 34106 ssh2 Oct 20 10:58:22 w1 sshd[24636]: fatal: bad ownership or modes for chroot directory component "/"   sftpUser no home, bin/falseand member of user group.  In the client side I'm getting the famous Write failed: Broken pipe and then the connection is dropped.  Commenting the ChrootDirectorycommand in sshd_config makes the connection, but get's the user loose.  What am I doing wrong ? What determines speciation at a molecular level?  At what point does a scientist determine two lineages are different enough to be considered separate species?  Does it have a margin of error? Next month I am traveling to country X, where I would need Y minutes of calls, Z text messages and most importantly Q megabytes of data. How can I find the cheapest/most reliable SIM card for my needs? How to "Hide a Collection in viewport" but not "Disable in Viewport" via script in Python Hi Blender coders and artists.  I am updating one of my add-ons for Blender 2.8 and have run into some  issues finding the appropriate way to hide a collection that is added to my scene.  I want to deselect the eyeball on the toolbar with a python command in a script but I don't want to disable the collection in the view-port entirely as it is used as a collection in a particle system.   I just want to deselect the eyeball circled in green below.  Anyone know the python API for this? What does it mean if a Python object is "subscriptable" or not? What's the policy about having multiple user accounts? I've been digging through some parts of the Linux kernel, and found calls like this:  if (unlikely(fd &lt; 0)) {     /* Do something */ }   or  if (likely(!err)) {     /* Do something */ }   I've found the definition of them:  #define likely(x)       __builtin_expect((x),1) #define unlikely(x)     __builtin_expect((x),0)   I know that they are for optimization, but how do they work? And how much performance/size decrease can be expected from using them? And is it worth the hassle (and losing the portability probably) at least in bottleneck code (in userspace, of course). Launchers for installed snap applications (including Ubuntu Software) disappeared after installing GNOME Software I can't not be pregnant This is a quote from a  where she talks about her miscarriage:     "It was awful," she told the Daily Mail's You magazine. "It happened really late, and I wasn't expecting it at all. "For a long time I just couldn't understand that it had happened and why. I was like 'But I can't not be pregnant. I'm already past the first trimester, and I have three car seats in my head.' To this day I feel like I'm missing that kid. But it wasn't meant to be and you have to trust the universe. "   What does she mean by saying "I can't not be pregnant?" Is this "can't not" construction a grammatical and common usage? I was looking at the decomposition of Fibonacci numbers using the definition of $F_n = F_{n-1} + F_{n-2}$, and noted the pattern in the coefficients of the terms were Fibonacci numbers. It appears to hold, and I believe it's true, but I haven't seen a proof for it. Does one exist?  $F_n = 1F_{n-1} + 1F_{n-2}$ $F_n = 2F_{n-2} + 1F_{n-3}$ $F_n = 3F_{n-3} + 2F_{n-4}$ $F_n = 5F_{n-4} + 3F_{n-5}$ etc  This can be generalized to $F_n = F_xF_{n-(x-1)}+F_{x-1}F_{n-x}$ Oneboxing is a handy feature in chat for quickly previewing links, but the list of supported sites is very small, and occasionally boxes for sites such as Wikipedia can break and fetch any image/text.  Instead of having to request additional sites to be added to the onebox list (, , , , , and of course ), we could let the sites themselves handle the oneboxing with some &lt;meta&gt; tags, such as:  &lt;meta name="onebox-title" content="The Onebox Title"/&gt; &lt;meta name="onebox-image" content="/image.png"/&gt; &lt;meta name="onebox-summary" content="This is the summary for a site's onebox"/&gt;   Then when a link is placed on its own in chat, the oneboxing spider would look for these tags and, if they are found, show the appropriate data.  Support for these tags would certainly be bad (for lack of any real better term) at first, though most users of SO chat could easily add it to their personal / company's sites (should they be in such a position) and writing friendly suggestions to other sites to implement them isn't exactly a gargantuan effort.  This would also present an opportunity for currently oneboxed sites to set in stone what should be shown, such as each Wikipedia article setting the main image to be oneboxed instead of SO's spider picking one willy-nilly.  Finally, sites implementing these tags would lay the foundation for other sites and services to develop similar features to the onebox, without having to write per-site scrapers. I have the following text:    A   Hello   world   B   Hello   world   C   Hello   world   I know that I can replace Hello by Hi using sed:  sed 's/Hello/Hi/g' -i test   but this replace each Hello with Hi:    A   Hi   world   B   Hi   world   C   Hi   world   what I really want is to replace only the Hello after B:    A   Hello   world   B   Hi   world   C   Hello   world   so I have tried this:  sed 's/"B\nHello"/"B\nHi"/g' -i test   but nothing happened, How can I do this?  Note: There are some white-spaces on the beginning of each line of the file. Was the Wookiee language fully designed or is it just random emotionally-relevant sounds? We know that some of the other Star Wars languages were fairly well developed by the movie's creators, in terms of vocabulary, grammar, etc.  Was the Wookiee language designed in this level of detail or did they just try to put together sounds that made sense emotionally? get dynamic properties in javascript Get number of unread sms How do I find out which DOM element has the focus? I would like to find out, in JavaScript, which element currently has focus. I've been looking through the DOM and haven't found what I need, yet. Is there a way to do this, and how?  The reason I was looking for this:  I'm trying to make keys like the arrows and enter navigate through a table of input elements. Tab works now, but enter, and arrows do not by default it seems. I've got the key handling part set up but now I need to figure out how to move the focus over in the event handling functions.