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Where can I learn how to write C code to speed up slow R functions? [closed]
...very efficient) C code one can study, and CRAN has hundreds of packages, some from authors you trust. That provides real, tested examples to study and adapt.
But as Josh suspected, I lean more towards C++ and hence Rcpp. It also has plenty of examples.
Edit: There were two books I found helpful:
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Where can I find “make” program for Mac OS X Lion?
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go to the Downloads tab within the Xcode Preferences menu and click "Install" next to the Command Line Tools entry
– williamC
Aug 27 '13 at 15:41
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Javascript Cookie with no expiration date
...030 now, we're postponing our doom 10 more years
– Simeon Nakov
Feb 23 '18 at 11:47
7
So, basical...
Eclipse doesn't highlight references anymore
I have an odd problem. In Eclipse Ganymede, I used to be able to highlight a variable, and it would highlight the use of that variables in that method. However through some action I have now disabled it. Is there a way I can enable it?
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Using an if statement to check if a div is empty
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You can use .is().
if( $('#leftmenu').is(':empty') ) {
// ...
Or you could just test the length property to see if one was found.
if( $('#leftmenu:empty').length ) {
// ...
Keep in mind that empty means no white space either. If there's a chan...
Is there a way to force ASP.NET Web API to return plain text?
...nstead return the content like this:
[HttpGet]
public HttpResponseMessage HelloWorld()
{
string result = "Hello world! Time is: " + DateTime.Now;
var resp = new HttpResponseMessage(HttpStatusCode.OK);
resp.Content = new StringContent(result, System.Text.Encoding....
Remove xticks in a matplotlib plot?
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The tick_params method is very useful for stuff like this. This code turns off major and minor ticks and removes the labels from the x-axis.
from matplotlib import pyplot as plt
plt.plot(range(10))
plt.tick_params(
axis='x', #...
How to show changed file name only with git log? [duplicate]
Is it able to show changed file name only with git log ?
6 Answers
6
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How to make type=“number” to positive numbers only
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@Bh00shan — If you type something that is invalid, it will get picked up when the form's submit button is clicked and the user will be prompted to fix it.
– Quentin
Jul 16 at 10:46
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jQuery hasClass() - check for more than one class
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How about:
element.is('.class1, .class2')
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