Drawing a log likelihood of some distribution

Hello,

Suppose I have a distribution with this pdf:

p*(x==0) + (1-p)*poisspdf(2,x(i))

her log likelihood will be:

Y = SUM from 1:100 (log(p*(x(i)==0) + (1-p)*poisspdf(2,x(i))

x is 1X100 vector sample from this distribution.

I want to plot p as function of Y. meaning, I want to draw the log likelihood of the sample.

p is defined to be   p = linspace(0,1,100). p is a probability of course.

I'm trying to use a function handle

for example : f=@(p) but which function sould I write here? if the function was p^2 then I would have wrote f=@(p) p^2 and then plot it but what about this case?

Thank's!