Bounded Logarithm Scale for Particle Count Data

When graphing or plotting count data from particle sensors, there is always the problem of handling zero values if a logarithmic scale is desired. The one plotting (or programming) may skip the offending values, leaving all values equal to 1 across the bottom of the graph. Or, a constant may be adde...

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Bibliographic Details
Published in:Aerosol science and technology 1996-01, Vol.24 (3), p.217-219
Main Author: Lawless, P. A.
Format: Article
Language:English
Subjects:
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Optical elements, devices, and systems
Optics
Physics
Online Access:Get full text
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Description
Summary:When graphing or plotting count data from particle sensors, there is always the problem of handling zero values if a logarithmic scale is desired. The one plotting (or programming) may skip the offending values, leaving all values equal to 1 across the bottom of the graph. Or, a constant may be added to all the counts to provide an offset from zero. We offer an approach with the advantage of changing only one label on the graph, yet allowing all values between 0 and 1 to be plotted automatically. The change is simple to program and can be equally easily used in manual plotting.
ISSN:0278-6826
1521-7388
DOI:10.1080/02786829608965365