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Rails: confused about syntax for passing locals to partials
...because I have been keeping up with Rails for the last couple of years and read the announcements that a new way of doing it has been added. I often make a mistake in it myself, but usually it's easily corrected.
It's one of those parts of Rails API that hasn't been thoroughly thought through, if y...
Adding a regression line on a ggplot
... your original dataframe (in your case data).
It would look like this:
# read dataset
df = mtcars
# create multiple linear model
lm_fit <- lm(mpg ~ cyl + hp, data=df)
summary(lm_fit)
# save predictions of the model in the new data frame
# together with variable you want to plot against
predi...
Java Reflection Performance
...ever optimize until you are sure you need it, until then, just write good, readable code.
Oh, and I don't mean write stupid code either. Just be thinking about the cleanest way you can possibly do it--no copy and paste, etc. (Still be wary of stuff like inner loops and using the collection that b...
What does FrameLayout do?
I'm new to programming. I was using Graphical Layout then when I was reading xml file, I saw FrameLayout. Then I searched, but I couldn't find something useful. What is FrameLayout and what does it do?
...
How do I add a simple jQuery script to WordPress?
I read the Codex and a few blog posts about using jQuery in WordPress, and its very frustrating. I've got as far as loading jQuery in functions.php file, but all of the guides out there are crappy because they assume you already have a ton of WordPress experience. For instance, they say that now t...
What is the EAFP principle in Python?
...ey inside the dictionary twice, and might also be considered slightly less readable.
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Git merge master into feature branch
...is a branching model for git that can be followed, and you unconsciously already did. It also is an extension to Git which adds some commands for the new workflow steps that do things automatically which you would otherwise need to do manually.
So what did you do right in your workflow? You have tw...
Implementing Fast and Efficient Core Data Import on iOS 5
...l. No sense having that MOC wait until the end to save. It has its own thread, and it will help keep memory down as well.
You wrote:
Then at the end of the import process, I save on the master/parent
context which, ostensibly, pushes modifications out to the other child
contexts including...
Jquery select all elements that have $jquery.data()
...
@gdoron, that's because data()'s getter form does indeed read the HTML5 data- attributes, but its setter form neither creates nor updates them.
– Frédéric Hamidi
Feb 29 '12 at 13:37
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Android buildscript repositories: jcenter VS mavencentral
...f download speed and diskspace to have the possibility of one day doing.
Read more on: The Maven index is huge!
Also, you might find this very short (1Q and 1A) discussion on Hacker News interesting.
I am with JFrog, the company behind bintray and artifactory, see my profile for details and l...