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Clustering

Cluster window

As an alternative to template matching, spikes can be sorted by cluster cutting. Values calculated by PCA or user-defined measurements are plotted to a 3D clustering window.

  • View can be rotated in 3 dimensions using mouse or sliders
  • K-means and normal mixtures algorithms for automatic cluster separation
  • Manual cluster separation by placing ellipses
  • View dots from a percentage of the entire time range and step through time to track moving clusters
  • Generate interval histograms based on displayed clusters
  • Show/hide particular clusters
  • Visual identification of clustered spikes occurring within a specified refractory period
  • Density plot option to aid cluster identification
  • Copy values as text (underlying data values and display co-ordinates)
  • Select individual spikes with a mouse click for manual classification

Density plot option to aid
cluster identification

Visual identification of
clustered spikes




Principal Component Analysis
  • Select principal components to plot on X, Y and Z axes
  • Calculation of components for multiple trace (stereotrode or tetrode) channels based on entire waveform, peak amplitude or ratio of peak to mean amplitudes

User-defined measurements
  • Select measurements for X, Y and Z axes to cluster the data
  • Measure times, amplitudes, slopes and areas
  • Save up to 10 configurations containing different sets of measurements
  • For multiple trace data, measure individual trace or mean of trace measurements

Cluster generation by
user-defined measurements

Cambridge Electronic Design Limited

Registered in England: 00972132

Registered office:

  • Cambridge Electronic Design Limited,
  • Technical Centre,
  • 139 Cambridge Road,
  • Milton,
  • Cambridge CB24 6AZ
  • ENGLAND.

VAT: GB 214 2617 96

Producer registration number: WEE/BD0050TZ

Terms and Conditions of Sale

For our US customers, we can provide tax form W-8BEN, that identifies us as a UK company.

DUNS: 219151016
CAGE/NCAGE: KB797
NAICS: 423490
Commodity codes
Hardware: 84716070
Software: 85234945
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By email:

info@ced.co.uk

By post:
  • Cambridge Electronic Design Limited,
  • Technical Centre,
  • 139 Cambridge Road,
  • Milton,
  • Cambridge CB24 6AZ
  • ENGLAND.
By telephone:

(Int.+44) (0)1223 420186

From North America (Toll Free):

1 800 345 7794

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