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How to set size for local image using knitr for markdown?
... using this function is that it is portable in the sense that it works for all document formats that knitr supports, so you do not need to think if you have to use, for example, LaTeX or Markdown syntax, to embed an external image. Chunk options related to graphics output that work for normal R plot...
Imitate Facebook hide/show expanding/contracting Navigation Bar
...OS7 Facebook iPhone app, when the user scrolls up the navigationBar gradually hides itself to a point where it completely vanishes. Then when the user scrolls down the navigationBar gradually shows itself.
...
What is Linux’s native GUI API?
...heir own APIs to handle windows, events and other OS stuff. I have never really got a clear answer as to what Linux’s equivalent is?
...
The server committed a protocol violation. Section=ResponseStatusLine ERROR
...derParsing fixed it for one link, but setting KeepAlive=false fixed it for all 6.
– David Hammond
Sep 17 '12 at 18:15
3
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jQuery: checking if the value of a field is null (empty)
...ype]').val().length != 0){}
If you want to check if the element exist at all, you should do that before calling val:
var $d = $('#person_data[document_type]');
if ($d.length != 0) {
if ($d.val().length != 0 ) {...}
}
s...
git still shows files as modified after adding to .gitignore
...re saying that you need to commit after removing the cached files? That really seems counter-intuitive; these are files I do NOT want to commit. And I do not want them deleted from the repository (I just want them to no longer be hanging around cluttering my git status). Or am I just really confu...
Expand/collapse section in UITableView in iOS
...LOOK like a header, and setup the tableView:didSelectRowAtIndexPath to manually expand or collapse the section it is in.
I'd store an array of booleans corresponding the the "expended" value of each of your sections. Then you could have the tableView:didSelectRowAtIndexPath on each of your custom h...
How do RVM and rbenv actually work?
I am interested in how RVM and rbenv actually work.
5 Answers
5
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Import CSV to SQLite
...l data. If that's the case with your CSV file, then you do not need to manually create the table using the create table command. The .import command will use the first line in your file to determine the column names and create the table accordingly. You still have to include the name of the table in...
Java: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification
...ur browser and add it to cacerts file of your JVM. You can either edit JAVA_HOME/jre/lib/security/cacerts file or run you application with -Djavax.net.ssl.trustStore parameter. Verify which JDK/JRE you are using too as this is often a source of confusion.
See also: How are SSL certificate server na...