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How are Data Aggregated When Periods Overlap?

It is possible for higher-frequency periods to overlap lower-frequency periods. For example, a week can start in one month and end in the next month. In these cases, FRED frequency aggregation will include the higher-frequency value in only one of … Continue reading

Posted in Understanding the Data

How are Missing Values Treated in Average, Sum, and End of Period Aggregation Methods?

Except for the first and last observations, the average, sum, and end-of-period aggregation methods ignore any other missing values. For example, consider a daily series from 2003-06-01 to 2003-07-31 with a missing value for Friday 2000-07-04, the US Independence Day … Continue reading

Posted in Understanding the Data

How are Missing Values Determined for First/Last Observations?

Higher-frequency data may not be available for an entire lower-frequency period. For example, a monthly data series may end in February. With only 2 of the 12 months of the year available, the converted annual value will be missing for … Continue reading

Posted in Understanding the Data

What is Frequency Aggregation?

Frequency aggregation converts higher-frequency data series into lower-frequency data series (e.g., from monthly data to annual data). In FRED, the highest data frequency is daily and the lowest data is annual. There are three aggregation methods available: Average: This method … Continue reading

Posted in Understanding the Data

How do I get to a Data Source’s Website?

There are three ways to get to a data-source website. Option 1: Below a graph, go to the “NOTES” section. Next to “Source” (on the first line), click the source name (see the red box below) to go to the source’s … Continue reading

Posted in Understanding the Data

How do I get to the Webpage of a Release?

There are two ways to get to the website of a release. Option 1: Below a graph, go to the “NOTES” section. Next to “Release” (on the right-hand side of the first line), click the name of the release (see … Continue reading

Posted in Understanding the Data

What is the Date Format?

All dates are represented as daily dates for consistency and ease of use. FRED uses a single date format widely supported by various spreadsheet applications (Excel, Lotus, etc.) and statistical software packages (SAS, Eviews, Stata, RATS, etc.). Because annual, quarterly, and … Continue reading

Posted in Understanding the Data, Frequently Asked Questions

Edit a Data Series: Units

Directly below is a video that explains why you would adjust the units. Below the video is explanation of “Units” drop-down menu. Above the graph, click the “Edit Graph” button. In the pop-up box that appears, click the “EDIT LINE” tab. … Continue reading

Posted in How can I customize a FRED graph?

Publish a Data List

Publishing a data list is an easy way to share data with others. When you choose to share a data list, the series in that list will be published to a public web page. This shared list will have its own … Continue reading

Posted in What can I do with FRED Data Lists?

Edit a Data Series: Frequency Aggregation

Sentence: Directly below is a video that explains why you would adjust the frequency and the aggregation method options. The video starts by explaining frequency and finishes by explaining aggregation methods. If you would like to skip ahead to frequency … Continue reading

Posted in How can I customize a FRED graph?
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