Measured

Class: Histogram

Histogram

Keeps a reservoir of statistically relevant values biased towards the last 5 minutes to explore their distribution.

new Histogram( [properties])

Parameters:
Name Type Argument Description
properties HistogramProperties <optional>

see HistogramProperties.
Implements:
Source:
Example
var Measured = require('measured')
var histogram = new Measured.Histogram();
http.createServer(function(req, res) {
  if (req.headers['content-length']) {
    histogram.update(parseInt(req.headers['content-length'], 10));
  }
});

Methods

getType()

The type of the Metric Impl. MetricTypes.

Implements:
Source:
Returns:

The type of the Metric Impl.

Type
string

hasValues()

Checks whether the histogram contains values.

Source:
Returns:

Whether the histogram contains values.

Type
boolean

reset()

Resets all values. Histograms initialized with custom options will be reset to the default settings (patch welcome).

Source:

toJSON()

Implements:
Source:
Returns:
Type
HistogramData

update(value)

Pushes value into the sample. timestamp defaults to Date.now().

Parameters:
Name Type Description
value number
Source: