load

问题 I have a flat file like this: x1, x2, x3, x4, x5 0.438,0.498,3.625,3.645,5.000 2.918,5.000,2.351,2.332,2.643 1.698,1.687,1.698,1.717,1.744 0.593,0.502,0.493,0.504,0.445 0.431,0.444,0.440,0.429,1.0 0.438,0.498,3.625,3.648,5.000 How do I load it in R. I have tried to do this > x <- read.table("C:\\flatFile.txt", header=TRUE) but after I do some operation I get error like > colSums(x) Error in colSums(x) : 'x' must be numeric 回答1: If you look at the help on read.table you'll discover some extra

问题 I have a major problem during loading the extension into the program. I get an exception as there is no valid constructor. The problem is in the line: ekstensja = (ArrayList<Dydaktyk>) ois.readObject(); I get something like that: java.io.InvalidClassException: Dydaktyk; no valid constructor at java.io.ObjectStreamClass$ExceptionInfo.newInvalidClassException(Unknown Source) at java.io.ObjectStreamClass.checkDeserialize(Unknown Source) at java.io.ObjectInputStream.readOrdinaryObject(Unknown

问题 I am creating a server to monitor the online presence of clients on a webpage. There will be 80-100 000 (eighty thousand) simultaneous clients to monitor. I’m using .Net to write this. Clients will contact a (separate) server using JavaScript (on the HTML-page) to tell the server that they are alive/online. I’m considering one of two approaches: Persistent connections with keep-alive sent regularly. This will give me much higher precision on when clients disconnect and I don’t need to update

问题 I've a table_name like this: No | Name | Inserted_Date | Inserted_By ===================================== and then I've file name.csv like this no,name 1,jhon 2,alex 3,steve I want to load these file table_name using syntax like this: LOAD DATA INFILE 'name.csv' INTO TABLE table1 FIELDS TERMINATED BY ',' LINES TERMINATED BY '\n' IGNORE 1 LINES ??? the question is, what should I put on ??? so I can store data like this: No | Name | Inserted_Date | Inserted_By =================================

问题 I have multiple fonts in web site It loads very slowly,I have some jquery functionality I need to load them when the fonts are loaded. I have tried to call it in jQuery(window).load(function () { //my_function() }); not working what to do??? 回答1: One problem with the Google font loader callbacks/events is that if you're using jQuery - you may not want to run your event handler until the DOM is loaded - but you don't want to risk running it before you're sure all fonts are loaded. Here's my

问题 I have used the line below in my app. But now I need to parse the html loaded before I show it. Whats the best way to get certain html elements. $("#div").load("page.html"); Thanks UPDATED Now I am using this but having trouble geting the title attribute of a div with the id "div". function get_title() { $.get("test.html", function(data) { var data = $(data); var title = $("#div", data).attr("title"); alert(title); }); } The html in the var data looks like this. <div id="div" title="title

问题 Is it possible to load a specific package during runtime? I want to have a kind of plugins where each one has the same functions than the others but with different behaviour, and depending on the configuration file, load one or other. 回答1: You might consider executing the ‘plugin’ packages at runtime, by writing out a new program (say, to a temp directory) and executing via exec.Command, something along the lines of exec.Command("go", "run", files…).Run() You’ll see some similar code here.

问题 Hi I just wondered if this is possible. I have quite a few images on my website and I have made them as small file size as possible. Some of the images are used as a slideshow but there are all loaded in one go. Is there a way using javascript to make the slideshow images load last so that the background images etc load up first and the slideshow loads at the end. The images are in the main body of the page and are "slideshowified" using javascript. The code for this images is simple: <div id

问题 How to apply loadMask to only one element, and not the whole browser width-height? default here, only one element is masked, and a messageBox is in center, inside this element and not the whole display... any ideas? EDIT: @Molecule , thanks, but this is when data is loading from some source, what i need is : { xtype:"button", text:"Alert", handler: function(){ Ext.Msg.show({ title:'Save Changes?', msg: 'You are closing ?', buttons: Ext.Msg.YES, setLoading: // here somehow only mask parent

问题 This is based off this question LEA instruction Here is the code segment I have a question about .ORIG X3700 LEA R0, A ..... A .FILL X1234 @Paul R, the answer responder, said that "The origin of the code is x3700, and you have 12 instructions, so the address of A will be x3700 + x0C = x370C. As you guessed, LEA R0,A loads the address of A into R0, so R0 will contain x370C after that first instruction has been executed." I agree with the first part of what Paul said, his reasoning for why the