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How to save a trained model by scikit-learn? [duplicate]

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You can use: 1. pickle from sklearn import svm from sklearn import datasets iris = datasets.load_iris() X, y = iris.data, iris.target clf = svm.SVC() clf.fit(X, y) ########################## # SAVE-LOAD using pickle # ########################## import pickle # save with open(‘model.pkl’,’wb’) as f: pickle.dump(clf,f) # load with open(‘model.pkl’, ‘rb’) as f: clf2 = pickle.load(f) clf2.predict(X[0:1]) 2. joblib … Read more

How to store CLLocation using Core Data (iPhone)?

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What you’re doing is fine. You should save the latitude and longitude as doubles in Core Data. When you need to get the information again, get the doubles back from Core Data and construct a CLLocationCoordinate2D struct with a function like CLLocationCoordinate2DMake. There’s no built in way to store a location, so storing the latitude … Read more

Swift: save video from NSURL to user camera roll

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AssetsLibrary is deprecated 1: import Photos import Photos 2: Use this code to save video from url to camera library. PHPhotoLibrary.sharedPhotoLibrary().performChanges({ PHAssetChangeRequest.creationRequestForAssetFromVideoAtFileURL(nsUrlToYourVideo) }) { saved, error in if saved { let alertController = UIAlertController(title: “Your video was successfully saved”, message: nil, preferredStyle: .Alert) let defaultAction = UIAlertAction(title: “OK”, style: .Default, handler: nil) alertController.addAction(defaultAction) self.presentViewController(alertController, animated: … Read more

iOS: Can’t save file to ‘Application Support’ folder, but can to ‘Documents’

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In case anyone is unsure how to do what rmaddy describes: NSString *appSupportDir = [NSSearchPathForDirectoriesInDomains(NSApplicationSupportDirectory, NSUserDomainMask, YES) lastObject]; //If there isn’t an App Support Directory yet … if (![[NSFileManager defaultManager] fileExistsAtPath:appSupportDir isDirectory:NULL]) { NSError *error = nil; //Create one if (![[NSFileManager defaultManager] createDirectoryAtPath:appSupportDir withIntermediateDirectories:YES attributes:nil error:&error]) { NSLog(@”%@”, error.localizedDescription); } else { // *** OPTIONAL … Read more

How to save a base64 image to user’s disk using JavaScript?

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HTML5 download attribute Just to allow user to download the image or other file you may use the HTML5 download attribute. Static file download <a href=”/images/image-name.jpg” download> <!– OR –> <a href=”/images/image-name.jpg” download=”new-image-name.jpg”> Dynamic file download In cases requesting image dynamically it is possible to emulate such download. If your image is already loaded and … Read more

MySQL : retrieve a large select by chunks

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You could try using the LIMIT feature. If you do this: SELECT * FROM MyTable ORDER BY whatever LIMIT 0,1000 You’ll get the first 1,000 rows. The first LIMIT value (0) defines the starting row in the result set. It’s zero-indexed, so 0 means “the first row”. The second LIMIT value is the maximum number … Read more

Get the html of the javascript-rendered page (after interacting with it)

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In Chrome (and apparently Firefox), there is a special copy() method that will copy the rendered content to the clipboard. Then you can do whatever you want by pasting it to your preferred text editor. https://developers.google.com/chrome-developer-tools/docs/commandline-api#copyobject Console Example: copy(document.body.innerHTML); Note: I noticed Chrome reports undefined after the method is run, however, it seems to execute … Read more

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