I want to store two variables in an array or list in a loop to collect all my x an y, something like the append function in python, can anyone help me.

Not sure exactly what you're asking... but you could make a list of tuples list:

``````my_list = [ (0,0),
(0,1),
(1,1),
(1,2) ]``````

? Is that what you're asking?

I am thinking of:

"Python"

``````x_values = ()
y_values = ()

for i in range(n);
x = i
y = i+1
x_values.append(x)
y_values.append(y)

# Optional
x_and_y = zip(x_values,y,values)``````

I am new to programming so the code might be wronge, but this is what I am trying to do in Matlab.

I don't really understand what you're asking... Can you clarify what you need help with?

I want to append some values to a list in MATLAB.

``````x_values = []
y_values = []

for i in range(n);
x = i
y = i+1
x_values.append(x)
y_values.append(y)``````

How are you wanting to arrange your x and y values? What you have done is correct if you want to create a list of x's and a list of y's whos values are 1 greater than the corresponding x.

Ah I think you want to do it in M-code. I think you could do this:

``````x = 0:1:n
y = 1:1:n+1
% where n would be as far as you would want to go. The syntax is in the form STARTINGNUMBER:INCREMENT:FINALNUMBER``````

I have two different functions which calculates the speed numerically, what I want to do is plot the difference between them against delta-x usinf Matlab

In Python:

``````N = [5,8,10,12]
deltax-list = []
speed-difference-list = []

for n in N:
dx = pi./(n-1)
deltax-list.append(dx)
s1 = function1(n)
s2 = function2(n)
s = abs(s1-s2)
speed-difference-list.append(s)``````

Is there an append function in Matlab or some other way to send values in to a list or array?

Thanks, it works perfect in Matlab.

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