python - how PCA fit transform on test set -

-

i using from sklearn.decomposition import pca library, incrementalpca reduce dimensionality of problem follows:

training_data = [...]  training_target = [...] test_data = [...] test_target = [...]  ipca = incrementalpca(n_components, batch_size) new_training_data = ipca.fit_transform(training_data)

to run tests given classifier, need fit test set information obtained in training set (something eigenvalues , eigenvectors), reduce same size of new training set. how can this library (or other), since ipca.fit_transform(data) not return me eg eigpairs or value resize dimension of test set?

the transform internal incrementalpca object after call fit or fit_transform. when call icpa.fit_transform, telling determine principal components transform given data , apply transform data. transform data set, use transform method of trained incrementalpca object:

new_test_data = icpa.transform(test_data)

Comments

Post a Comment

Popular posts from this blog

php - Autoloader issue not returning Class -

-
problem? bootloader (autoloader) not seem working properly, or i'm missing something. here simplified code. the code below returns class "skeleton" not exist. on index.php file. index.php <?php include 'bootloader.php'; use skeleton\html\loginheader; $tool = new skeleton/html/loginheader(); bootloader.php <?php function boot($classname) { $filename = ''; $namespace = ''; // sets include path "src" directory $includepath = dirname(__file__).directory_separator.'src'; if (false !== ($lastnspos = strripos($classname, '\\'))) { $namespace = substr($classname, 0, $lastnspos); $classname = substr($classname, $lastnspos + 1); $filename = str_replace('\\', directory_separator, $namespace) . directory_separator; } $filename .= str_replace('_', directory_separator, $classname) . '.php'...
Read more

java - How to put two numbers separated by a space into two different arrays -

-
i have 2 number inputs 1010 212 i want put these 2 different arrays ([1 0 1 0] , [2 1 2]) this code import java.io.*; import java.util.*; public class solution { public static void main(string[] args) { int array[] = new int[8]; int array2[] = new int[8]; int = 0; scanner getnumber = new scanner(system.in); { array[i] = getnumber.nextint(); i++; } while(getnumber.hasnextint()); system.out.println(arrays.tostring(array)); } } but output [1010, 212, 0, 0, 0, 0, 0, 0] (i put 8 generic array length because java compiler forced initialize each array) you need store numbers first initialize arrays based on length of number. can length turning string. once left number , empty array, can split integer array of digits number of ways. int[] array, array2; scanner in = new scanner(system.in); int a, b; = in.nextint(); b = in.nextint(); array = new int[integer.tostring(a...
Read more

laravel - Undefined property: Illuminate\Pagination\LengthAwarePaginator::$id (View: F:\project\resources\views\admin\carousels\index.blade.php) -

-
when try pass variable data view error, can't find document problem controller(carouselcontroller.php) public function index() { $carousels = carousel::orderby('created_at', 'asc')->paginate(12); return view('admin.carousels.index')->withcarousels($carousels); } my view(index.blade.php) <div class="row"> <div class="col-md-9"> <h1>all images</h1> </div> <div class="col-md-3"> <a href="{{ route('carousels.create') }}" class="btn btn-lg btn-block btn-primary ">create new carousel</a> </div> <div class="col-md-12"> <hr> </div> </div>{{-- end of row --}} <div class="row"> <div class="col-md-12"> <div class="row"> @foreach($carousels $photo) <div class="col-xs-6 col-md...
Read more