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Outdated data code
Shea Paris
edited Aug 2, 2016
Seeking Help Using Data Pipeline

I saw this code on the data page for the Civilian Unemployment Rate provided by Quandl:
pipe.add(fred_unrate.value.latest, 'fred_unrate')

This is giving the following error:
UnsupportedPipelineOutput: Cannot add column 'fred_unrate' with term Latest((fred_unrate.value::float64,), window_length=1). Adding slices or single-column-output terms as pipeline columns is not currently supported.

Does anyone know how to use the fred_unrate data source, to get the latest unemployment rate values?

Thank you!

1 response
Nathan Wolfe
Aug 5, 2016

Hi Shea, thanks for bringing this up. Recently there was a change to one-value-per-day data that stopped Latest from working with it. There's a post here which talks about the change and which has an example of a CustomFactor which lets you add this kind of data directly to your pipeline as before.

Since Latest no longer works with this type of data, clearly that line should be removed from the data page for these datasets. I've notified our team so that the pages can be changed.

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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.