Why does scatter does not read a file as a parameter and how do I classify my data?

function [ average ] = classifyData( file )
%UNTITLED Summary of this function goes here
%   Detailed explanation goes here
% Written by J. Camilleri B.Sc IS&M

load(file);
%scatter(data(:,0), data(:, 1), 'o'); #debug
title('Distribution of iris data');
xlabel('sepal length | sepal width | petal length | petal width');
ylabel('numeric data');
average = mean(file);
r = file;
c = {1,2,3,4,5};
scatter(r,c,'o');
end

%References #BUG - originally written in Python.
%1. AIMotion blog - http://pythonbrasil.github.io/pythonbrasil11-site/
%using regression.
%2. Archive at ics.edu.mt/ UoM.

[Jon Camilleri]

Data sourced from http://archive.ics.uci.edu/ml/.

[Guillaume]

Please do not post the same question twice. Amend the original question.

As stated in the other question, learn to format your post.

Answer 1

[Thorsten]

Read data

 data = csvread('../../Downloads/iris_data.csv')

For a scatter plot of column 2 vs 1

 scatter(data(:,1), data(:,2))

and in 3D

 scatter3(data(:,1), data(:,2), data(:,3))

To separate the data in two classes using kmeans clustering:

 idx = kmeans(data, 2);

Show results

 ind = idx == 1; scatter3(data(ind,1), data(ind,2), data(ind,3), 'b')
 hold on
 ind = idx == 2; scatter3(data(ind,1), data(ind,2), data(ind,3), 'r')

[Jon Camilleri]

I tried:

r = file(:,1);
c = file(:,2);
scatter(r,c,'o')

An error is displayed reading 'must supply X and Y data as first arguments'.

In any case, I would like to see a scatter plot where the columns of data are displayed in a scatter plot so I can see their distribution visually.

The columns represent:

sepal length (cm)
sepal width (cm)
petal length (cm)
petal width (cm)

This is data about measurements taken from plants.

[Walter Roberson]

What is class(file), size(r)