Python for Finance Code Repo 10.2

Question

When I select run, it does not show me if I did the code correctly, the screen just flashes.
This is what I did: (ps. on pc, I did not see an option to add my code elsewhere, like on my tablet)

import numpy as np
import numpy_financial as npf

#price for 2018-2021
bitcoin = [3869.47, 7188.46, 22203.31, 29391.78]
an_array = np.array(bitcoin)
multiplied_array = an_array * 10
print(multiplied_array)
mining_array = [-500000, 38694.7, 71884.6, 222033.1, 293917.8]
npf.irr(mining_array)

Answer 1

Stacey Prahl , Rik Wittkopp ,

Stacey, did you get an error message by running the code???

i have taken a look at the code of 10.2, but could not find an issue. the final print statement is not done there, may be this causes an error.

but i found a typo in the code of 11.2 code (plotting):

bitcoin_newValue = np.mulitply(bitcoin, bitcoin_owned), but has to be ...multiply(...)

please correct this, it should work properly...

Answer 2

Lothar
Since you have pro & have completed the Python for Finance course, could you help Stacey Prahl with this problem.

Answer 3

Stacey Prahl
I get a result for the existing print line, and another result when I print the last line.

import numpy as np
import numpy_financial as npf

#price for 2018-2021
bitcoin = [3869.47, 7188.46, 22203.31, 29391.78]

an_array = np.array(bitcoin)

multiplied_array = an_array * 10
print(multiplied_array)

mining_array = [-500000, 38694.7, 71884.6, 222033.1, 293917.8]
print(npf.irr(mining_array))

Answer 4

I took out the additional code from 11.2, and ran it again. This is what I got for a result:

[38694.7 71884.6 222033.1 293917.18]

Answer 5

My code Repo symbol omly shows 1/2 a diamond, which seems to me that I'm only half right.

Answer 6

https://code.sololearn.com/cFLfc03f5mvs/#py
Here is my updated code

Answer 7

I had forgotten to add print before npf.irr(mining_array)
to be print(npf.irr(mining_array))
but I still did not get the same answer as the expected result.

Answer 8

I did not get the expected result" 0.0729721591 after adding the print() before the npf...))

Answer 9

it looks like your initial investment price is wrong, you have 50k instead of 500k and remove the first print statement the rest of the code looks fine.