meas is unrecognized, attempting to read in a file and plot data

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Sunshine 2020-11-2

回答： Mathieu NOE 2020-11-6

I am attempting to follow https://www.mathworks.com/help/stats/clustering-using-gaussian-mixture-models.html with my own data. My data is x values (10 rows of double numbers) and y values (2 columns of double numbers). So I have this...

load p2-data

X = meas(:,1:2)

[n,p] = size(X)

plot(X(:,1),X(:,2),'k*','MarkerSize',15)

title('test')

xlabel('x points')

ylabel('y points')

However, I get the error: Unrecognized function or variable 'meas'

when running the above code. I am using R2020b. meas does seem to be a function. What am I doing wrong?

RenatoL 2020-11-6

Mathieu wrote the solution here, which is the comments section. I suggest Mathieu put his answer properly so that Sunshine can accept it.

Mathieu NOE 2020-11-6

will do immediately ! tx

Mathieu NOE 2020-11-6

so the answer is :

you are attempting to plot a variable (meas) that does not exist in your workspace

when you load your file, the data name is p2_data and not meas

so you have to correct : X = p2_data(:,1:2)

enjoy !

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