One of the most common questions that arise in machine learning problems is that, which algorithm you should use to model a given set of data. Most of the time, there is no straight forward answer, as it depends on several factors of the dataset such as the type and properties of the features, size of the data, as well as the objective of fitting the model etc. Following diagram provides a general guideline on how to select a suitable algorithm for your dataset, in WSO2 Machine Learner.
Use the above guidelines to find an algorithm to build a model to fit your data. However, if you need to find the best model, then try out a few algorithms in the same class and see which one performs better.