Introduction In this tutorial, we want to one-hot encode a NumPy array that contains categorical values. In order to do this, we use the to_categorical() function of Keras. Import Libraries First, we import the following python modules: import numpy as np from keras.utils import to_categorical Define Data...
Introduction In this tutorial, we want to add the current date and the current timestamp to a PySpark DataFrame. In order to do this, we use the current_date() function and the current_timestamp() function of PySpark. Import Libraries First, we import the following python modules: from pyspark.sql import...
Introduction In this tutorial, we want to show different ways how to create an array. In order to create an array, we use the functions array(), zeros(), arange() and linespace() of NumPy. Import Libraries First, we import the following python module: import numpy as np Array function NumPy offers different...
Introduction In this tutorial, we want to join NumPy arrays along different axes. In order to do this, we use the functions hstack(), vstack() and dstack() of NumPy. Import Libraries First, we import the following python module: import numpy as np Define Data Let's consider two arrays a...
Introduction Machine Learning can be divided into two main types: Supervised Learning and Unsupervised Learning. In this tutorial, we want to take a closer look to these approaches and compare them to each other. Overview Both supervised learning and unsupervised learning have their own characteristics and are suitable for solving...
Introduction In this tutorial, we want to take a closer look to the most important Machine Learning algorithms and compare them to each other. Overview...
Introduction In contrast to a classic feedforward network, a Recurrent Neural Network (RNN) allows backward connections. An RNN is particularly suitable for processing time series data and is able to take into account the time dependency of data. This enables an RNN to have a kind of short-term memory. The...
Introduction In this tutorial, we want to import Stock Prices from Yahoo Finance into Python. In order to do this, we use ticker module of YFinance. YFinance The python library yfinance enables access to financial data from Yahoo Finance. Yahoo Finance provides various financial market data such as stock...
