Hi, How can I plot the functions below on Matlab?

[YT]

You did not add an image.

Answer 1

[YT]

Because your question only contains formulas without any other information on what x or lambda are, I'll give you a standard answer on how to plot:

• plot
• semilog
• log

Answer 2

[vandeleeuw]

You can use probability density functions:

y1=gampdf(x+1/lambda,2,1/lambda); y2=normpdf(x);

[H]

How both functions related? Is there any relationship between normal distubion and gamma distribution? And I want to compare what happenns around the maximum of both function. For that I need to see in 3 different graphs with different axis.

[vandeleeuw]

If X has a standard normal distribution, then (X^2)/2 has a gamma distribution with parameters lambda=1 and a=1/2.

[H]

Is the function f(x) a gamma function then? What’s the relationship between lamda and sigma?

Answer 3

[H]

What if I say lambda=1.1 and -5<=x<=5.