I have scoured the internet and can’t find a python command to find the x and y intercepts of a curve on matplotlib. Is there a command that exists? or is there a much easier way that is going over my head? Any help would be appreciated. Thanks, Nimrodian. Answer
Attempted relative import beyond toplevel package
Here is my folder structure: In test_bash__init__.py I have: while in test_bsa_files.py: Now when I issue: I get: Since ‘Mopy” is in the sys.path and bosh__init__.py is correctly resolved why it complains about relative import above the top level package ? Which is the top level package ? Incident…
Momentum portfolio(trend following) quant simulation on pandas
I am trying to construct trend following momentum portfolio strategy based on S&P500 index (momthly data) I used Kaufmann’s fractal efficiency ratio to filter out whipsaw signal (http://etfhq.com/blog/2011/02/07/kaufmans-efficiency-ratio/) I succeeded in coding, but it’s very clumsy, so I need…
convert an unfair coin into a fair coin in Python 2.7
Using Python 2.7. Suppose I have an unfair coin and I want to turn it into a fair coin using the following way, Probability of generating head is equal for unfair coin; Flip unfair coin and only accept head; When a head is appearing, treat it as 1 (head for virtual fair coin), when another head is appearing, …
has no attribute validate_on_submit: How to use wtforms-alchemy’s ModelForm in a flask handler / view
I’m trying to switch from wtforms.ext.sqlalchemy.orm import model_form to using wtforms_alchemy ModelForm: I’m failing miserably… and I’ve been unsuccessful searching for a working example of that uses wtforms_alchemy which shows both the handler and the model. Using model_form works f…
Convert dictionary into list with length based on values
I have a dictionary I want to convert it to a list that holds the keys of the dictionary. Each key should be repeated as many times as its associated value. I’ve written this code that does the job: Output: But I would like it to be a list comprehension. How can this be done? Answer You can do it
Import mssql spatial fields into geopandas/shapely geometry
I cannot seem to be able to directly import mssql spatial fields into geopandas. I can import normal mssql tables into pandas with Pymssql without problems, but I cannot figure out a way to import the spatial fields into shapely geometry. I know that the OGR driver for mssql should be able to handle it, but I…
How to get appname from model in django
I have this code if i have Options model in my view i want to get the appname from it Answer or
How to know the folder size in a zipfile
I know that you can get the size in bytes of a file in a ZIP file using the .file_size method But is there any what I can get the size of a folder instead? Ex: Answer
Python simple interest calculation
I am trying to calculate how much monthly payment in order to pay off a loan in 12 month. use $10 as incremental. The correct answer should be 110, why am I getting 60? Answer The main things generating the difference are: The balance should be reset to 1200 before looping through the 12 months again The paym…