overlap

With "lubridate" package in R, I can find out if two time periods overlapped. but Is there an efficient way to compute for how many days they overlapped. (for instance how many days a women smoked while pregnant. the pregnancy period and smoking period may overlap totally, partially or not at all) Here is an example with three women: preg_start<-as.Date(c("2011-01-01","2012-01-01","2013-01-01")) preg_end<-preg_start+270 # end after 9 months smoke_start<-as.Date(c("2011-02-01","2012-08-01","2014-01-01")) smoke_end<-smoke_start+100 # all three smoked 100 days data<-data.frame(cbind(preg_start

If you look at the screenshot you will notice that each UITableViewCell are 20% overlapped from top portion to the upper tableview cell. Is there any way we can overlap cells ? I never tried it, but this kind of logic will work. Remember, you won't get any touch in the overlapped area. 1) Add your subview to cell.contentView , make sure subview height is greater than rowHeight of your tableView. float overlapHeight = 10.0; subView.frame = CGRectMake(0.0, -10.0, your_subview_width, rowHeight + overlapHeight); 2) Add this code, so that your cell won't clip contents outside its frame cell

I'm trying to identify elements which are not included in the other vector. For instance in two vectors I have list.a <- c("James", "Mary", "Jack", "Sonia", "Michelle", "Vincent") list.b <- c("James", "Sonia", "Vincent") is there a way to verify which people do not overlap? In the example, I would want to get the vector result that contains Mary, Jack, and Michelle. Any suggestions will help! Yes, there is a way: setdiff(list.a, list.b) # [1] "Mary" "Jack" "Michelle" I think it should be mentioned that the accpeted answer is is only partially correct. The command setdiff(list.a, list.b) finds

I'm trying to wrap my head around using the Separating Axis Theorem in JavaScript to detect two squares colliding (one rotated, one not). As hard as I try, I can't figure out what this would look like in JavaScript, nor can I find any JavaScript examples. Please help, an explanation with plain numbers or JavaScript code would be most useful. Update: After researching lots of geometry and math theories I've decided to roll out a simplified SAT implementation in a GitHub repo. You can find a working copy of SAT in JavaScript here: https://github.com/ashblue/canvas-sat Transforming polygons First

In my layout, there is a TextView at the bottom of the screen. The problem is that when I click inside the text box to type something, the keyboard covers the text box as a result of which I am not able to see what's happening... Is there any solution for this? Here's my layout... <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/mainLayout" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent" android:background="@drawable/layout_bg"> <ImageView android:id="@+id

Example Markup: <div class="wrapper"> <h2>Trigger</h2> <div>This is some content</div> </div> <div class="wrapper"> <h2>Trigger</h2> <div>This is some content</div> </div> <div class="wrapper"> <h2>Trigger</h2> <div>This is some content</div> </div> Example CSS: .wrapper {z-index: 1} .wrapper div {display: none; position: absolute;} Via javascript (jQuery) I'm attaching a click event to each h2 that will then switch the content div to display: block. The intent is that these are expandable blocks of content that will overlap anything else on the page. The catch is that I'd like the first one

I (just like everyone else here) am running into the same Status Bar overlap issue that everyone else is, with a little twist, and that is why I opening a new question about this. There seems to be some mechanism that lets the UISearchBar know where to position it self, which is totally out of whack. jaredsinclair answer here ( iOS 7 status bar back to iOS 6 default style in iPhone app? ) , explains in great detail how the Apple Engineers allow us to introduce logic to our application in order to blend in as much as possible with the user's environment. I went through the process of carefully