A numeric vector that stores margin-of-error information along with it. The margin of error will update through basic arithmetic operations, using a first-order Taylor series approximation. The implicit assumption is that the errors in each value are uncorrelated. If in fact there is correlation, the margins of error could be wildly under- or over-estimated.

## Arguments

- x
A numeric vector containing the estimate(s).

- se
A numeric vector containing the standard error(s) for the estimate(s). Users should supply either

`se`

or`moe`

and`conf`

.- moe
A numeric vector containing the margin(s) of error. Users should supply either

`se`

or`moe`

and`conf`

.- conf
The confidence level to use in converting the margin of error to a standard error. Defaults to 90%, which is what the Census Bureau uses for ACS estimates.