arrays

问题 I am very amateur when it comes to scipy. I am trying to use scipy's fmin function on a multidimensional variable system. For the sake of simplicity I am using list of list of list's. My data is 12 dimensional, when I enter np.shape(DATA) it returns (3,2,2) , I am not even sure if scipy can handle that many dimensions, if not no problem I can reduce them, the point is that the optimize.fmin() function doesn't accept list based arrays as x0 initial parameters, so I need help either rewriting

问题 I am very amateur when it comes to scipy. I am trying to use scipy's fmin function on a multidimensional variable system. For the sake of simplicity I am using list of list of list's. My data is 12 dimensional, when I enter np.shape(DATA) it returns (3,2,2) , I am not even sure if scipy can handle that many dimensions, if not no problem I can reduce them, the point is that the optimize.fmin() function doesn't accept list based arrays as x0 initial parameters, so I need help either rewriting

问题 I used a string-stream to read an input file with 10 lines and stored all the values into separate arrays. ID, first, last, city, state, and GPA. It looked like this. 1 Nathan Humphery Kansas MO 3.35 2 Sara Jonathan LeesSummit MO 3.56 3 Kayla James Liberty KS 3.78 4 Kyle Davis Independence KS 2.98 ... 8 Daniel Earla Independence KS 3.77 So the ID array would be { 1, 2, 3, 4, ..., 8} and the city array would be {Kansas, LeesSummit, Liberty, Independence, ..., Independence} One of the functions

问题 I'm trying to find a certain path through my 2d array My array could look like this: temp = [ ["placeholder", 2, 0], ["placeholder", 1, 7, 3], ["placeholder", 4, 5, 8], ["placeholder", 6, 3, 5, 2], ["placeholder", 7], ["placeholder", 3, 0], ] The inner arrays contain a placeholder followed by a variable amount of integers. These integers range in value between 0-19 (0 and 19 both included) I wanna find a path from top to bottom through these inner arrays where no number is used more than once

问题 I try to get parse an JSONArray from a PHP-Script in AndroidStudio. I get this JSON Response from my PHP script: [{"0":"Firstname","meta_value":"Firstname"},{"0":"Lastname","meta_value":"Lastname"},{"valid":"1"},{"entered":"5"}] Now I try to parse the JSONArray to get the value meta_value so I want to get "Lastname" and "Firstname". But there must be an error in my code because I get as response: Exception: No value for meta_value public class SendPostRequest extends AsyncTask<String, Void,

问题 I try to get parse an JSONArray from a PHP-Script in AndroidStudio. I get this JSON Response from my PHP script: [{"0":"Firstname","meta_value":"Firstname"},{"0":"Lastname","meta_value":"Lastname"},{"valid":"1"},{"entered":"5"}] Now I try to parse the JSONArray to get the value meta_value so I want to get "Lastname" and "Firstname". But there must be an error in my code because I get as response: Exception: No value for meta_value public class SendPostRequest extends AsyncTask<String, Void,

问题 If I have an array which comes from a database like this: $array = [ 'dataset_1' => [ 'some' => '...', 'array' => '...', ], 'dataset_2' => [ 'some' => '...', 'thing' => '...', 'else' => '...', ] ]; ... how can I transform this array to another structure like: $array = [ 'whatever' => [ 'some' =>'...', 'array' => '...', 'some' =>'...', 'thing' => '...', 'else' => '...', ] ]; I thought about OptionResolver, but I have no idea so if anyone can give me a hint or an example? 回答1: You can do it

问题 If I have an array which comes from a database like this: $array = [ 'dataset_1' => [ 'some' => '...', 'array' => '...', ], 'dataset_2' => [ 'some' => '...', 'thing' => '...', 'else' => '...', ] ]; ... how can I transform this array to another structure like: $array = [ 'whatever' => [ 'some' =>'...', 'array' => '...', 'some' =>'...', 'thing' => '...', 'else' => '...', ] ]; I thought about OptionResolver, but I have no idea so if anyone can give me a hint or an example? 回答1: You can do it

问题 I have $data variable like this: $data = [ 'name' => $name, 'student_id' => $student_id, ]; and I want to save it to text file: $path = storage_path('app/public/').'student.txt'; if (is_file($path)) { $path_ = Storage::disk('public')->prepend('data.txt', json_encode($data).','); } else { $path_ = Storage::disk('public')->put('data.txt', json_encode($data).','); } and then I want to see the output: $json = (Storage::disk('public')->get('data.txt')); return $json; and the value is: {"name":

问题 I create Aliment struct. And i have an array of Aliment. struct Aliment { let name: String let vitamineARetinol: Float let vitaminC: Float let vitaminD: Float let calories: Float let grammage: Float } let ListAlimentsBrut = [ Aliment(name: "Orange", vitamineARetinol: 0.5, vitaminC: 57, vitaminD: 0.98, calories: 140, grammage: 100), Aliment(name: "Pomme", vitamineARetinol: 0.2, vitaminC: 6.25, vitaminD: 0.38, calories: 120, grammage: 100), Aliment(name: "Poire", vitamineARetinol: 0.1, vitaminC