Set the connection string to your database, set up the query for data selection, process the query and load the selected records in WEKA. button, you can see a window as follows − The Explorer will load the data from the remote site into its environment. You may specify any other URL where your data is stored. We will open the file from a public URL Type the following URL in the popup box − Before that, let us look at how to load the data file from the Web. We will very soon learn how to inspect and process this loaded data. The contents of the file would be loaded in the WEKA environment. These are available in the data folder of the WEKA installation.įor learning purpose, select any data file from this folder. WEKA installation comes up with many sample databases for you to experiment. The wrapper can also be installed to be used as part of a python pipeline using pip install spmf-py (see webpage of the wrapper for details). Now, navigate to the folder where your data files are stored. A directory navigator window opens as shown in the following screen − Just under the Machine Learning tabs that you studied in the previous lesson, you would find the following three buttons −Ĭlick on the Open file. In this chapter, we will see all the three options of loading data in detail.

The data can be loaded from the following sources − In this chapter, you will learn how to preprocess the raw data and create a clean, meaningful dataset for further use.įirst, you will learn to load the data file into the WEKA explorer. This is because the raw data collected from the field may contain null values, irrelevant columns and so on. This is common to all algorithms that you would apply to your data for building the model and is a common step for all subsequent operations in WEKA.įor a machine learning algorithm to give acceptable accuracy, it is important that you must cleanse your data first. In this chapter, we start with the first tab that you use to preprocess the data.

How to install weka wraper