This is a compiled list of falsehoods programmers tend to believe about working with time.
Don't re-invent a date time library yourself. If you think you understand everything about time, you're probably doing it wrong.
(by @andrestaltz)
If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.
Quantopian provides a 11-year history of US equity market data in minute and daily bars. The US market data provides a backbone for financial analysis, but some of the most promising areas of research are finding signals in non-market data. Fetcher provides your algorithm with access to external time series data. Any time series that can be retrieved as a csv file via http or https can be incorporated into a Quantopian algorithm.
Fetcher lets you load csv files over http. To use it, invoke fetch_csv(url) in your initialize method. fetch_csv will retrieve the text of the csv file using the (wonderful) requests module. The csv is parsed into a pandas dataframe using pandas.io.parsers.read_csv. You may then specify your own methods to modify the entire dataframe prior to the start of the simulation. During simulation, the rows of the csv/dataframe are streamed to your algorithm's handle_data method as additional properties of the data parameter.
Best of all, your F
This is a post by Joel Spolsky. The original post is linked at the bottom.
This is such a common question here and elsewhere that I will attempt to write the world's most canonical answer to this question. Hopefully in the future when someone on answers.onstartups asks how to split up the ownership of their new company, you can simply point to this answer.
The most important principle: Fairness, and the perception of fairness, is much more valuable than owning a large stake. Almost everything that can go wrong in a startup will go wrong, and one of the biggest things that can go wrong is huge, angry, shouting matches between the founders as to who worked harder, who owns more, whose idea was it anyway, etc. That is why I would always rather split a new company 50-50 with a friend than insist on owning 60% because "it was my idea," or because "I was more experienced" or anything else. Why? Because if I split the company 60-40, the company is going to fail when we argue ourselves to death. And if you ju
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| visit('/projects') | |
| visit(post_comments_path(post)) | |
| =Clicking links and buttons= | |
| click_link('id-of-link') | |
| click_link('Link Text') | |
| click_button('Save') | |
| click('Link Text') # Click either a link or a button | |
| click('Button Value') |