Back to Community
Graph multiple stocks and fundamental data in Research

Hello

How can I get a simple line graph (I assume other graphs will work in a similar fashion) in matplotlib to graph multiple fundamentals and multiple symbols?

I believe the key is in the indexing of the data frame and/or the way StaticAssets are used, but I was unable to find documentation or anything that could help me.

Thanks in advance,

Loading notebook preview...
Notebook previews are currently unavailable.
2 responses

Hi Evan,

The trick here is to slice your pipeline output properly. Pipeline output is multiindexed; it has one date index, and one asset index. Each date has one entry for each asset in your pipeline's screen, so a single column will contain values for multiple assets.

Since columns contain values for different assets, this makes plotting a bit more difficult -- we can't just plot the columns of our dataframe. Instead, we need to slice our dataframe first so that we get a series of data for one particular asset at a time. I've attached a notebook here that should demonstrate this idea.

I would especially recommend our new Qgrid feature, which makes it easy to slice multiindexed dataframes (there's also an example using Qgrid in the notebook attached).

Loading notebook preview...
Notebook previews are currently unavailable.
Disclaimer

The material on this website is provided for informational purposes only and does not constitute an offer to sell, a solicitation to buy, or a recommendation or endorsement for any security or strategy, nor does it constitute an offer to provide investment advisory services by Quantopian. In addition, the material offers no opinion with respect to the suitability of any security or specific investment. No information contained herein should be regarded as a suggestion to engage in or refrain from any investment-related course of action as none of Quantopian nor any of its affiliates is undertaking to provide investment advice, act as an adviser to any plan or entity subject to the Employee Retirement Income Security Act of 1974, as amended, individual retirement account or individual retirement annuity, or give advice in a fiduciary capacity with respect to the materials presented herein. If you are an individual retirement or other investor, contact your financial advisor or other fiduciary unrelated to Quantopian about whether any given investment idea, strategy, product or service described herein may be appropriate for your circumstances. All investments involve risk, including loss of principal. Quantopian makes no guarantees as to the accuracy or completeness of the views expressed in the website. The views are subject to change, and may have become unreliable for various reasons, including changes in market conditions or economic circumstances.

Hey Lucy, thanks for the help!

I have noticed a problem come up for several equities. For example, If I run a pipeline from 2002-01-01 to 2018-6-27 for Nike & UAA, It returns an error for me. However, If I change the pipeline run time to 2012-01-01 to 2018-6-27, the graph will populate for me correctly.

Do you have any insight to what is causing this? I feel like it is more of a backend error then anything in particular that I am doing. I also noticed the same problem when I was multi-indexing the symbols GMLP and GLNG

Loading notebook preview...
Notebook previews are currently unavailable.