It’s not a must, but it’s very convenient because of a huge amount of handy and very fast (vectorized) functions/methods, provided by Numpy/SciPy modules. Actually most of the machine-learning methods (at least in the sklearn module) will try to convert input arrays into Numpy arrays, in order to be able to use Numpy’s functions/methods. Consider … Read more
What this big regex commands mean? Pattern #1 Breakdown: / #start of pattern delimiter (@.*@) #Capture Group #1: match an @ sign, then zero or more (as many as possible) of any non-newline character, then another @ sign | #or (\.\.) #Capture Group #2: match a literal dot, then another literal dot | #or (@\.) … Read more
This problems is a binary segmentation problem. In a sense you learn a mapping from satellite images and predict for each pixel, iff this pixel is part of the road. A simple algorithm to do this would be to check if the pixel color is part of some range. A CNN naturally will learn you … Read more
You might use a positive lookahead and test if the string contains /*? If so, match any character one or more times .+ from the beginning of the string ^ until the end of the string $ ^(?=.*\/\*).+$ Explanation ^ Begin of the string (?= Positive lookahead that asserts what is on the right .*\/\* … Read more
First, obtain the old value of the high score. Then, do the arithmetic before finally saving the new value: let oldValue = UserDefaults.standard.integer(forKey: “HIGHSCORE”) let newValue = oldValue – 20 UserDefaults.standard.set(newValue, forKey: “HIGHSCORE”) solved Reduce UserDefaults Integer Value – Swift
Do you mean, how can one cleanly output many lines of HTML conditionally without having to echo each individual line? If that’s the case, something like this would do the trick: <?php if ($this->item->catid == 9) { ?> <!— put all the raw output you like here —> <?php } else { ?> <!— put … Read more
XORing N copies of K together produces K if N is odd and 0 if N is even. K ^ K == 0, 0 ^ K == K, and it just alternates between those results with every additional K. (Your code is currently XORing n+1 copies of k together, which I’m guessing is a mistake.) … Read more
Looks like you are missing a closing parenthesis, at least, in the second to last line where you have .*sin((y).*sin(z), and missing a * (or another operator) between your )( in several lines. In MATLAB (A)(B) is not A*B. 8 solved What is the syntax error “Error: Unbalanced or unexpected parenthesis or bracket.”? [closed]
As suggested in the comments, you may split on & then on = , like this example : String testString = “param1=value1¶m2=value2¶m3=value3¶m4=value4¶m5=value5”; String[] paramValues = testString.split(“\\&”); for (String paramValue : paramValues) { System.out.println(paramValue.split(“\\=”)[1]); } solved How to retrieve specific values from String
Steps Get the user – ideally you want to use the userid (or primary key) to retrieve the user Remove the user from the db Save the changes in the context Code: var user = db.Users.Single(x => x.Nom == formUser.Nom && x.prenom == formuser.prenom); db.Users.Remove(user); db.SaveChanges(); solved asp net. How to remove data from a … Read more
You want to distinguish the emails according to the groups. According to your question, 12345678 and 12345 are groups. what you can do is explode the email two times. One time with @ and second time with .. Let me show you how you can do this. $email_exploded = explode(‘@’,$email) // this will give you … Read more
This is the line I’m having a problem with for(int i = a; i <= b; i++) { /* body of the loop */ } See e.g. https://en.cppreference.com/w/cpp/language/for, it translates into something like: Executes int i = a; once, then executes the body of the loop and i++ repeatedly, until the value of condition i … Read more
The error is with this code. You are binding the params to different query object. $addTl = “UPDATE teams SET tlName = :tlName, tlSet = :tlSet WHERE tId = :tId”; $addTlQuery = $dbConnect -> prepare($addTl); $addUserQuery -> bindParam(‘:tId’, $_REQUEST[“team”]); $addUserQuery -> bindParam(‘:tlName’, $lastUid); $addUserQuery -> bindParam(‘:tlSet’, $_REQUEST[“tl”]); echo $lastUid. ” Last ID<br>”; echo $_REQUEST[“tl”]. ” … Read more
Here’s basically what you want. Do note that I used Bootstrap as a CSS framework, which makes it alot easier to create lay-outs like yours. I took the liberty to build your lay-out from the ground up, without any special colors. DEMO: JSFiddle HTML: <div class=”row”> <div id=”header” class=”col-xs-12″> <h1>Welcome to my green world!</h1> <hr … Read more
By your requirement, you should iterate through all the values in L. try out this code P=3 I=2 L = [2,4,6,8,10] x=[] y=? for i in L: x.append((P * i * y)/I) for idx,i in enumerate(x): if x <= 305: print “this” + L[idx] + “will not work” else: print “this” + L[idx] + “will … Read more