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by Graham Williams
Duck Duck Go



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Ladder

Ladders are used as a pseudo-electric representation of boolean expressions. They are used by some vendors of industrial automats (including Schneider/Télémécanique and Siemens).

Image dia-sheet-ladder


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Other online resources include the Data Science Desktop Survival Guide.
Books available on Amazon include Data Mining with Rattle and Essentials of Data Science.
Popular open source software includes rattle and wajig.
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