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Mastering Development

trying to understand how to interpret ‘Accuracy Score’ output from LSTM neural network

I’ve been working with a basic LSTM neural network exploring its capacity to forecast stock market behavior, and the particular code I built a lot of it around generates an accuracy score that I don’t fully understand how to interpret. It outputs a value between 0 and 1, but I wouldn’t have a clue how […]

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Mastering Development

Send POST request from HTML as a json or xml object

I am trying to send a HTML from as either a JSON object or XML object based on user preference. I currently have a REST API that completes a POST request and reads the data as either JSON or XML. (Code below). I have tested this code in postman and this works. protected void doPost(HttpServletRequest […]

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Mastering Development

How to build server streaming via grpc and nest.js?

Need to create some "channel" to which the client can subscribe and periodically receive messages. Within the current technology stack, I’m trying to organize something like this: proto file: syntax = "proto3"; package testtime; service TimeService { rpc GetTimeStream(Empty) returns (stream TimeStreamResponse); } message Empty { } message TimeStreamResponse { string result = 1; } […]

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Mastering Development

SIRD model fitting in R using real data not working

I am trying to fit SIRD model in R to real data. However, the observed values are lying nowhere on the fitted curve. I can’t understand what the error is or how to resolve it, but I have noticed that changing the value of "state" produces the error DLSODA- Warning..Internal T (=R1) and H (=R2) […]

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Mastering Development

why am I getting the key error in python?

I have an iris dataset which I want to load onto python and make some graphs with it Here is my error message Here is what it says KeyError Traceback (most recent call last) ~\Anaconda3\lib\site-packages\pandas\core\indexes\base.py in get_loc(self, key, method, tolerance) 3077 try: -> 3078 return self._engine.get_loc(key) 3079 except KeyError: pandas\_libs\index.pyx in pandas._libs.index.IndexEngine.get_loc() pandas\_libs\index.pyx in pandas._libs.index.IndexEngine.get_loc() […]

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Mastering Development

Cypress: Custom command returns array: How loop to run test suite?

Problem: Trying to call tests within an array of items returned from a Cypress custom command. Approaches attempted using npm package mocha-each and another test using the forEach function. Custom Command: I created a custom Cypress command that returns an array of AppParamsType: /// <reference types="Cypress" /> import { AppParamsType } from ‘support’; declare global […]

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Mastering Development

Spring-cloud kafka stream schema registry

I am trying to transform with functionnal programming (and spring cloud stream) an input AVRO message from an input topic, and publish a new message on an output topic. Here is my transform function : @Bean public Function<KStream<String, Data>, KStream<String, Double>> evenNumberSquareProcessor() { return kStream -> kStream.transform(() -> new CustomProcessor(STORE_NAME), STORE_NAME); } The CustomProcessor is […]

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Mastering Development

why is my RMSE not affected by data normalization (0 – 1)? i did not inverse transform to real figures. OR is there a way to normalise computed RMSE? [closed]

#Everyone, i am new to coding, please dont pick on me! #importing required libraries import numpy as np import matplotlib.pyplot as plt import pandas as pd #breaking the data into x/y x = data.iloc[:, 1:] y = data.iloc[:, :1] #calling train and test size from sklearn.model_selection import train_test_split x_train, x_test, y_train, y_test = train_test_split(x, y, […]

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Mastering Development

The “path” argument must be of type string or an instance of Buffer or URL cloudinary and nodejs

I am trying to create a method that client can upload image from front end to back end server and then store the images to cloudinary but I end up getting this error: TypeError [ERR_INVALID_ARG_TYPE]: The "path" argument must be of type string or an instance of Buffer or URL. Received undefined Here is my […]

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Mastering Development

HTTP 403 error when trying to download a file from URL using Python

I’m trying to download a file from the URL -> https://www.microsoft.com/en-us/download/confirmation.aspx?id=56519 I can manually download the file by accessing the URL via a browser and the file gets automatically saved onto the local machine in the Downloads folder. (The file is in JSON format) However, I need to achieve this using a Python script. I […]