nested

I am a newbie to R and I have problem splitting a very large data frame into a nested list. I tried to look for help on the internet, but I was unsuccessful. I have a simplified example on how my data are organized: The headers are: 1 "station" (number) 2. "date.str" (date string) 3. "member" 4. "forecast time" 5. "data" I am not sure my data example will show up rightly, but if so, it look like this: 1. station date.str member forecast.time data1 2. 6019 20110805 mbr000 06 77 3. 6031 20110805 mbr000 06 28 4. 6071 20110805 mbr000 06 45 5. 6019 20110805 mbr001 12 22 6. 6019 20110806 mbr024 18

I'm new to Javascript/React so I'm not sure how to implement this into my recursive function. I have a nested menu of json objects set up, and want to add little arrows indicating if there is another level to click to or not. Since my menu is made up of heavily nested json objects, I used recursion to go through all the objects and render them as a menu. I will include screenshots to visually explain what I'm trying to do as well. Does anyone have any ideas on how to check if that layer of objects has children, and if so add an arrow (or anything) to indicate this? Here is my code: class Menu

The following code is responsible for reading files. My requirement is how to find whether all files has been read so that I can return or resolve a promise from the parent function(readmultifiles). $.when(readmultifiles(files)) .then(function(){//all files uploaded})) Above code initiates the file read. What can be done so that upon reading of all files callback is done or a return can be made. function readmultifiles(files) { // Read first file setup_reader(files, 0); } function setup_reader(files, i) { var file = files[i]; var name = file.name; var reader = new FileReader(); reader.onload =

Given this nested dictionary, how could I print all the "phone" values using a for loop? people = { 'Alice': { 'phone': '2341', 'addr': '87 Eastlake Court' }, 'Beth': { 'phone': '9102', 'addr': '563 Hartford Drive' }, 'Randy': { 'phone': '4563', 'addr': '93 SW 43rd' } for d in people.values(): print d['phone'] Using a list comprehension >>> [people[i]['phone'] for i in people] ['9102', '2341', '4563'] Or if you'd like to use a for loop. l = [] for person in people: l.append(people[person]['phone']) >>> l ['9102', '2341', '4563'] Loop over the values and then use get() method, if you want to

I'm having trouble reading a JSON file into a POJO. Let me give you a snippet of what my JSON file entails: { "Speidy": { "factionId": "2", "role": "ADMIN", "title": "", "power": 9.692296666666667, "powerBoost": 0.0, "lastPowerUpdateTime": 1337023306922, "lastLoginTime": 1337023306922, "chatMode": "PUBLIC" }, "ShadowSlayer272": { "factionId": "2", "role": "NORMAL", "title": "", "power": 0.8673466666666667, "powerBoost": 0.0, "lastPowerUpdateTime": 1336945426926, "lastLoginTime": 1336945426926, "chatMode": "PUBLIC" }, My issue is the first 'node' is completely random, i.e how can I make a POJO

I've got three classes User, Order & Project which are stored in single tables. The orders and projects both have a n:n relation with the users. To implement that I've got two crosstables (UserOrders, UserProjects) which map these relations. public class User { public string UserID {get;set;} public List<string> Orders{get;set;} public List<string> Projects {get;set;} } public class Order { public string OrderID {get;set} ... } public class Project { public string ProjectID {get;set} ... } As you can see the User object contains a list of every related orderID/projectID. Now I want to query