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Notes on ACS API Variable Types

Component ID: #ti2131159578

Variable Types

ACS data contain variables ending in E, EA, M, MA, PE, PM and SS. See the table below for each variable type and its meaning:

Variable Type

Title

Related Products

Meaning

E

Estimate

Summary Files, Subject Tables, Data Profiles, Comparison Profiles

A numeric representation of the estimate.

EA

Estimate Annotation

Subject Tables, Comparison Profiles

A character representation of the estimate. If an Estimate Annotation exists, use this value in place of the Estimate.(See Example #1 in Estimate and Annotation Values)

M

Margin of Error

Summary Files, Subject Tables, Data Profiles

A numeric representation of the margin of error.

MA

Margin of Error Annotation

Subject Tables Only

A character representation of the margin of error. If a Margin of Error Annotation exists, use this value in place of the Margin of Error.

PE

Percent Estimate

Data Profiles Only

An estimate representing a percent of the total.

PM

Percent Margin of Error

Data Profiles Only

The Margin of Error for the corresponding Percent Estimate (PE) variable

SS

Statistical Significance

Comparison Profiles Only

Returns ‘*’ or ‘c’ representing the Statistical Significance for the corresponding estimate (E) variable. (See Example #2  in Estimate and Annotation Values)

An * indicates that the estimate is significantly different (at a 90% confidence level) than the estimate from the most current year. A "c" indicates the estimates for that year and the current year are both controlled; a statistical test is not appropriate.

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