From the
book...
We'll start by creating a random set of 10 points on a two-dimensional plane. Using the standard convention, we'll arrange these in a 10×2 array
import numpy as np
X = rand.rand(10, 2)
print(X)
Error:
---------------------------------------------------------------------------
NameError Traceback (most recent call last)
<ipython-input-4-ac81983deccd> in <module>
1 import numpy as np
2 import random
----> 3 X = rand.rand(10, 2)
4 print(X)
NameError: name 'rand' is not defined
Any idea how to define this second
.rand?
In[9] rand = np.random.RandomState(42)
so, your code would be
import numpy as np
rand = np.random.RandomState(42)
X = rand.rand(10, 2)
print(X)
Output:
[[0.37454012 0.95071431]
[0.73199394 0.59865848]
[0.15601864 0.15599452]
[0.05808361 0.86617615]
[0.60111501 0.70807258]
[0.02058449 0.96990985]
[0.83244264 0.21233911]
[0.18182497 0.18340451]
[0.30424224 0.52475643]
[0.43194502 0.29122914]]
Yeah, it makes sense although number 42 in parenthesis is still a mystery.
Note, that is if you want the same seed 42 as in the example code
By the way, is there a chance that you also take a look at the topic "
Computing the distance between each pair of points". These double colons are still making me headache.
(Jun-17-2020, 07:09 PM)buran Wrote: [ -> ] (Jun-17-2020, 07:07 PM)Truman Wrote: [ -> ]number 42 in parenthesis is still a mystery.
You know, 42 - The Answer to the Ultimate Question of Life, The Universe, and Everything.
I am sure they deliberately choose it as seed
Yeah, I'll have to ask my numerologist what 42 represents...
