vwc.is.error {AnalysisPageServer} | R Documentation

## vwc.is.error

### Description

Predicate to test if an AnalysisPageValueWithConditions had an error

### Usage

    vwc.is.error(vwc)

### Arguments

`vwc` | AnalysisPageValueWithConditions, as returned by `tryKeepConditions`

### Details

Predicate to test if an AnalysisPageValueWithConditions had an error

### Value

Logical

### Author(s)

Brad Friedman

### Examples

    vwc <- tryKeepConditions({3+5})
    vwc.is.error(vwc)

    vwc <- tryKeepConditions({stop("error!")})
    vwc.is.error(vwc)

[Package AnalysisPageServer version 1.14.0 Index]