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cross val score returns NAN in sklearn

I am getting nan score from cross_val_score. May I please know how to handle it.. Struggling since a day. from sklearn.model_selection import KFold, cross_val_score from sklearn.model_selection import train_test_split import hyperopt from hyperopt import tpe from hyperopt import STATUS_OK from hyperopt import Trials from hyperopt import hp from hyperopt import fmin from sklearn.linear_model import LogisticRegression df […]

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Mastering Development

glTF file is not showing anything

I want to display a glTF file using Three.js. Due to CORS policy, I am using local server(Servez). When I am running it on Mozilla Firefox, it has no errors but still it is not showing anything. On doing same on Chrome, it is showing- “Not allowed to load local resource:”. Even I have used […]

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Game Creation Mastering Development

Class Not Found Exception on Class.forName()

I am having this exception on title. I have been following a LibGDX programming PDF, everything was working perfectly and then this code have been implemented, and it isnt working anymore. I should add that Rock and Starfish are classes on my project, and there is no typo on class names Caught message: java.lang.ClassNotFoundException: Rock […]

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Mastering Development

How can I convert a const char* to a string in CLR/C++ with FLTK to obtain the value of an FL_Input or other widget?

I have been recently constructing a program. The end goal is to get what the user has written in the Fl_Input box and write it into my database. To do this I am going to need a callback on a button that allows me to at least get the string value of an Fl_Input->value() The […]

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User Help

How do I save a custom size screenshot on python?

So I’m working on the little project and the problem I ran to is… I can take a screenshot with custom size but I cannot save it to disk. What should I do? import pyautogui as ImageGrab im = ImageGrab.screenshot(region=(0,0,300,400)

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User Help

How do I save a custom size image screenshot on python?

So I’m working on the little project and the problem I ran to is… I can take a screenshot with custom size but I cannot save it to disk. What should I do? import pyautogui as ImageGrab im = ImageGrab.screenshot(region=(0,0,300,400)

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Mastering Development

How to use state space model to do prediction for dataset with multiple specific columns/variables

I have a dataset as below: import pandas as pd from datetime import datetime, timedelta def date_range(start, end): r = (end+timedelta(days=1)-start).days return [start+timedelta(days=i) for i in range(r)] start = pd.to_datetime(‘2020-01-15’) end = pd.to_datetime(‘2020-02-13’) a = pd.DataFrame({‘date’: date_range(start, end), ‘group’: [0,0,0,0,0,0,0,0,0,0,1,1,1,1,1,1,1,1,1,1,2,2,2,2,2,2,2,2,2,2], ‘type’:[‘king’, ‘name’,’is’,’true’, ‘man’, ‘king’, ‘name’,’is’,’true’, ‘man’, ‘king’, ‘name’,’is’,’true’, ‘man’, ‘king’, ‘name’,’is’,’true’, ‘man’, ‘king’, ‘name’,’is’,’true’, ‘man’, […]

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Mastering Development

How to convert tflite_graph.pb to detect.tflite properly

I am using tensorflow object-detection api for training a custom model using ssdlite_mobilenet_v2_coco_2018_05_09 from tensorflow model zoo. I successfully trained the model and test it out using a script provided in this tutorial. Here is the problem, I need a detect.tflite to use it in my target machine (an embedded system). But when I actually […]

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Mastering Development

pyalgotrade can not procee csv feed in strategy

I am trying to load 1- minutes data into pyalgotrade. The feed is loaded correctly but I have some weird error in initializing strategy. Anyone can give some advice on this? Here is the code class MyStrategy(strategy.BacktestingStrategy): def __init__(self, feed, instrument): super(MyStrategy, self).__init__(feed) self.__instrument = instrument self.__rsi = rsi.RSI(feed[instrument].getCloseDataSeries(), 14) self.__sma = ma.SMA(self.__rsi, 15) self.__instrument […]

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Mastering Development

How to solve index column issue in Panda while converting to json file?

There is a pandas dataframe as follow : df I wanted to create a json file by using this command df.to_json(os.path.join(path, ‘test.json’)) My desired output is {“Big”: {“A”: “Big”, “B”: [[“rose”, 100], [“camelia”, 200], [“Lily”, 300]], }, “Medium”: {“A”: “Medium”, “B”: [[“house”, 45], [“car”, 30], [“money”, 56]], }} Instead, the output I am having is: […]