Practical - 4

 

Practical 4

 Aim: Visual programming with Orange tool

Theory:

what is visual programing? 

Visual programming is a type of programming language that lets humans describe processes using the illustration. Whereas a typical text-based programming language makes the programmer think like a computer, a visual programming language lets the programmer describe the process in terms that make sense to humans.

Dataset Description:

1. sepal length in cm
2. sepal width in cm
3. petal length in cm
4. petal width in cm
5. class:
-- Iris Setosa
-- Iris Versicolour
-- Iris Virginica

1.How to Split our data in training data and testing data in Orange?

To test the models on a separate data set, use separate File widgets to load training and test data. Connect File widget with data sampler and connect data sampler to test and train widget

Now click on any link data or test data then connect the data sample to data and the remaining data to test data.

Now our data split into training and testing datasets.

What is the effect of splitting data on the classification result/ classification model?

Let's do classification and compare the classification using accuracy for that first of all add the classification model to datasampler and test and score.

Let check and compare the accuracy of all the model.