How to get more precise cdf pdf plot?

sample1=[...];

sample2=[...];
[p,x] = hist(sample1); 
[p2,x2] = hist(sample2); 

plot(x,p/sum(p),'r'); %PDF
hold on
plot(x2,p2/sum(p2),'g'); %PDF

I used code above to plot CDF and PDF. However, the plot is not very precise. I want to get more smooth plot. How can I make the distance between each point be 10? Currently, it seems like 100.

Thanks

Answer 1

[Kaushik Lakshminarasimhan]

By default hist uses 10 bins to create a histogram. You can change the resolution either by specifying the number of bins or the bin centres. For example, to make a histogram with 100 bins:

[p,x] = hist(sample1,100);

Alternatively, you can specify the bin centres instead of number of bins.

bincntr = 10:10:2000
[p,x] = hist(sample1,bincntr);

In the second case, x will be equal to bincntr