Assignment V- fisheriris dataset

ECE-210-A Assignment V

In this homework, we will go through a few advanced data structures in MATLAB, such as cell
arrays, classes, chars, as well as dataset importing in MATLAB. You will be importing in the
fisheriris dataset and encapsulating it in classes. After obtaining all the data, you will be required
to write some methods for the class you just created. Also note that some operations will require
you to do some research, but not too much! I sent you an email with most of the information you
need.
1. Load in the fisheriris dataset with the command load fisheriris . You should obtain a 150 × 4
matrix called meas, as well as a 150 × 1 cell array called species in your workspace. This is a very
popular dataset, and you can quickly google fisherisis to see what the columns of meas represent.
• Create a class called Flower in its own .m file. In your Flower class, you should have the
following properties – petalWidth (double), petalLength(double), sepalWidth(double), sepalLength(double) and species(char). The ith species corresponds to the ith row of information
in meas. Note that you do not need to specify the data type of the properties when you
are declaring a class the following properties are just here to impress on you what type of
properties you would be expecting.
•Create a constructor for your class. It should take in 4 doubles and a char array corresponding,
in order, to the five properties of your class.
• Now, import the entries from meas and species into MATLAB and store them in a 150×1
cell array of Flower instances. You can either use a for loop to import the entries, or use a
more elegant way to make all entries in one line (this would require some research on object
formation in MATLAB). Either way is ok. However, note that the name of the species are
stored as cell arrays; make sure to extract from the cell as a char and remove trailing white
spaces before storing them in the Flower instances. There is a single function that will do
this, which you should be able to find with a quick google search.
• Create a method called getSLength for the Flower object, which will return the sepal length
of the object. Use this on the 25th Flower in your cell array, and check (using ==) that this
is the correct value by looking that the corresponding entry in meas.
• Create another method called report for the Flower object, which will print out a statement
on the command window and report the details about the Flower object. This function does
not need to return anything. It should print out a statement of the following form if the
flower is 5.1 cm in sepal length, 3.5 cm in sepal width, 1.4 cm in petal length and 0.2 cm in
petalWidth, and the species is setosa, for example:
“The length and width of its sepal are 5.1 cm and 3. 5cm respectively, while the length and
width of its petal are 1.4cm and 0.2cm respectively. It belongs to the setosa species.”
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