breakage-package {breakage}R Documentation

Estimating SICM pipette tip geometry from breakage data


Functions to estimate the interior half-cone angle and tip radius of a scanning ion conductance microscope (SICM) pipette by fitting recorded changes in pipette conductance as the pipette tip is broken. See the referenced paper for a full discussion of this technique.


Package: breakage
Type: Package
Version: 1.1
Date: 2014-12-08
License: Artistic 2.0
LazyLoad: yes


Matthew Caldwell <>


Caldwell, M., Del Linz, S. J. L., Smart, T. G. S. and Moss, G. W. J. 2012 Method for estimating the tip geometry of scanning ion conductance microscope pipets. Anal. Chem. 84(21):8980–8984


# load the example data set

# get the bottom points
raw.points <- breakage.plot(, mV=100)
## Not run: 
# select the clusters
clustered <- break.clust(raw.points)

# fit the tip geometry to the clustered points
fit <- fit.breakage(clustered, rho=64)

## End(Not run)

[Package breakage version 1.1-1 Index]