histogram in matlab with huge input

Question

I am trying to make a histogram in matlab. My data size is huge (3.5 million), x and y data are the same size (both are 3.5 million)

My original data has 200,200,88 3D matrix, I reshaped it to 1 column the code for this:

[dose , size] = Dose('C:\R1')
s = size(1)*size(2).size(3)
t = reshape(dose, s, [])

When I try the command hist(t), I got a 1 bar only.

My workspace is as the following:

dose   <200x200x88 double>
s      3520000
size   [200,200,88]
t      <3520000x1 double>

Could you tell me how to make a histogram with this data?

Answer 1

I'm able to generate a vector of size 3520000x1 and build a histogram with it.

val=rand(3520000,1);

hist(val)

It's possible your data has a few singular outliers causing your bins to look something like (1,0,0,...,3519999). If you save your histogram bins like h=hist(data); you can see what happened.