منابع مشابه
The art of nomograms
Background To retrospectively analyse strategies for adjusting refractive surgery plans with reference to the preoperative manifest refraction. Methods We constructed seven nomograms based on the refractive outcomes (sphere, cylinder, axis [SCA]) of 150 consecutive eyes treated with laser in situ keratomileusis for myopic astigmatism. We limited the initial data to the SCA of the manifest ref...
متن کاملConstructing Interactive Nomograms
Nomograms graphically encode mathematical relationships between multiple parameters. Historically, nomograms enjoyed wide use as analog computation devices, but understandably fell out of favor with the advent of more powerful calculators, computers, and related software. Yet, certain examples of nomograms encode complex relationships that are not easily visualized using more common forms such ...
متن کاملOf Donkeys and Nomograms
If you are a vet, you will often need to know the weight of an animal, for example to prescribe the right amount of a drug. If your animal is a rabbit, this is not a problem. But if your animal is large, say a donkey, and if you are out in the field, then you will not be able to weigh the animal directly. However, if you have a tape measure then you can weigh the animal indirectly, if you have ...
متن کاملProstate cancer nomograms: an update.
OBJECTIVE Several nomograms have been developed to predict outcomes related to prostate cancer (PCa). METHODS We provide a descriptive and an analytic comparison of nomograms. Further, we report a set of recent PCa nomograms, in which we recorded predictor variables, number of patients used to develop each nomogram, and nomogram-specific features. Moreover, accuracy estimates and type of vali...
متن کاملNomograms for Visualizing Linear Support Vector Machines
Support vector machines are often considered to be black box learning algorithms. We show that for linear kernels it is possible to open this box and visually depict the content of the SVM classifier in high-dimensional space in the interactive format of a nomogram. We provide a crosscalibration method for obtaining probabilistic predictions from any SVM classifier, which control for the genera...
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ژورنال
عنوان ژورنال: Anaesthesia
سال: 1993
ISSN: 0003-2409,1365-2044
DOI: 10.1111/j.1365-2044.1993.tb07012.x