Follow the crib sheet very, very carefully: https://docs.google.com/document/pub?id=19nQzvKP-CVLd7_VrpwnHfl-AE9fjbJySowONZZtNHzw In particular, I think you need to: Import the actual source for the “google-play-services_lib” project and link it as an Android library. Do this through Project -> Properties -> Android -> Library, Add -> google-play-services_lib (you can right click on your project and choose Properties, then select … Read more
The datawrangling blog posted a nice list a while back: http://www.datawrangling.com/some-datasets-available-on-the-web Includes financial, government data (labor, housing, etc.), and too many more to list here.
If you know in advance that you’re going to want to multiple samples without overlaps, easiest is to do random.shuffle() on list(range(100)) (Python 3 – can skip the list() in Python 2), then peel off slices as needed. s = list(range(100)) random.shuffle(s) first_sample = s[-10:] del s[-10:] second_sample = s[-10:] del s[-10:] # etc Else … Read more
Yes, you can use dplyr: mtcars %>% group_by(cyl) %>% slice_sample(n = 2)) and the results are like this Source: local data frame [6 x 11] Groups: cyl mpg cyl disp hp drat wt qsec vs am gear carb 1 24.4 4 146.7 62 3.69 3.190 20.00 1 0 4 2 2 26.0 4 120.3 91 … Read more
In versions of dplyr 0.3 and later, this works just fine: df %>% group_by(color) %>% sample_n(size = 3) Old versions of dplyr (version <= 0.2) I set out to answer this using dplyr, assuming that this would work: df %.% group_by(color) %.% sample_n(size = 3) But it turns out that in 0.2 the sample_n.grouped_df S3 … Read more
The following exchange is between Chrome and a static web server, retrieving an MP4 video. Initial request – for the video. Note the Accept-Ranges response header to indicate the server has range header support: GET /BigBuckBunny_320x180.mp4 Cache-Control: max-age=0 Connection: keep-alive Accept-Language: en-GB,en-US,en Host: localhost:8080 Range: Accept: text/html,application/xhtml+xml,application/xml,*/* User-Agent: Mozilla/5.0 (Windows NT 5.1) AppleWebKit/535.7 … Accept-Encoding: … Read more
You are looking to partition the distance from 0 to 1. Choose n – 1 numbers from 0 to 1, sort them and determine the distances between each of them. This will partition the space 0 to 1, which should yield the occasional large result which you aren’t getting. Even so, for large values of … Read more
This is available as the slice_sample function in dplyr: library(dplyr) new_df <- df %>% group_by(ID) %>% slice_sample(n=500) In older versions of R, the function was called sample_n, which has been deprecated.
private OutputStream outputStream; private InputStream inStream; private void init() throws IOException { BluetoothAdapter blueAdapter = BluetoothAdapter.getDefaultAdapter(); if (blueAdapter != null) { if (blueAdapter.isEnabled()) { Set<BluetoothDevice> bondedDevices = blueAdapter.getBondedDevices(); if(bondedDevices.size() > 0) { Object[] devices = (Object []) bondedDevices.toArray(); BluetoothDevice device = (BluetoothDevice) devices[position]; ParcelUuid[] uuids = device.getUuids(); BluetoothSocket socket = device.createRfcommSocketToServiceRecord(uuids[0].getUuid()); socket.connect(); outputStream = socket.getOutputStream(); … Read more
In the light of the evolving thread, I have updated the below: IE 6 * html .ie6 {property:value;} or .ie6 { _property:value;} IE 7 *+html .ie7 {property:value;} or *:first-child+html .ie7 {property:value;} IE 6 and 7 @media screen\9 { .ie67 {property:value;} } or .ie67 { *property:value;} or .ie67 { #property:value;} IE 6, 7 and 8 @media … Read more