new-coder | New Coder tutorials : 5 life jackets to throw the new coder | Scraper library
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New Coder tutorials: 5 life jackets to throw the new coder.
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QUESTION
I'm making a MIP, which I'm trying to run trough NEOS cplex (AMPL). Every time I run it, I get the same error code, even though I have tried to find and fix the error The error I get is: "amplin, line 9 (offset 93): syntax error context: >>> {\ <<< rtf1\ansi\ansicpg1252\cocoartf1671"
I'm fairly new to AMPL, so therefore I'm a bit unsure, what the error code means. My code is split in a model file, and a data file, both written as a .txt file. I can't seem to locate the error. Model:
...ANSWER
Answered 2019-Mar-30 at 22:50You could try installing the size-limited demonstration version of AMPL, reducing the problem size as necessary to fit within the limits of that version, and using that to test your code.
This will help identify whether the problem is in your syntax, or something related to how you're using NEOS. As suggested by @melpomene it's also possible that the file you're sending is not in the expected format, so try passing it through a plain text editor e.g. the AMPL IDE's editor.
In my experience, debugging NEOS runs can be frustrating, so best to do as much of the debugging as possible on a local system where you can get a bit more feedback.
QUESTION
This is an exercise from DataQuest and the data can be found here:
https://github.com/freeCodeCamp/2017-new-coder-survey
How do I generate a table from variables with pandas in jupyter?
...ANSWER
Answered 2019-Feb-24 at 13:10Use concat
for DataFrame
from both Series
:
QUESTION
I am analyzing 2016 survey data taken by FreeCodeCamp. https://github.com/freeCodeCamp/2016-new-coder-survey
in particular, 2016-new-coder-survey/clean-data/2016-FCC-New-Coders-Survey-Data.csv
I am normalizing a plot by dividing the net recommendation amount (a difference) by the total (#sum of recommendations) for each x-value (Age).
for a few ages, there is zero recommendations, thus I end up dividing by zero and receiving ZeroDivisionError. I've already found a way to do it. but for the sake of learning, how could i accomplish fixing this with an if statement? could you explain what is wrong with the following code?
here is just all my variables, included for completeness.
...ANSWER
Answered 2017-Oct-04 at 03:49You can use if/else in the list comprehension like so (technically we are using a ternary operator):
QUESTION
I am analyzing 2016 survey data taken by FreeCodeCamp1. https://github.com/freeCodeCamp/2016-new-coder-survey
in particular, 2016-new-coder-survey/clean-data/2016-FCC-New-Coders-Survey-Data.csv
for some reason any additional plots I want to add are not displayed. giving the error
...ANSWER
Answered 2017-Oct-03 at 19:14Your problem is not with the number of plots, but with a typo in the call to the fifth plot. As far as I know, there are no limits to the number of plots (besides your own computer's memory I guess)
In your fifth plot, you are calling plt.hist(..., type='bar')
when it should be plt.hist(..., histtype='bar')
as in the first four plots.
QUESTION
I'm working with tutorial http://newcoder.io/scrape/part-0/ about web crawling script in Python. I got stuck on:
You should see (ScrapeProj) before your prompt. Now install package requirements with the following command for this project.
...ANSWER
Answered 2017-Feb-23 at 08:02I downloaded each required module from https://pypi.python.org/pypi. By required I mean:
- Twisted
- Psycopg2
- Scrapy
- SQLAlchemy
I went to virtual enviroment by command workon name-of-enviroment
, navigated to directory with modules. Installed them by using python setup.py install
Installation went smooth without any errors.
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