Mean Absolute Error Calculator
There’s something about checking the prediction against reality that give you this particular type of anxiety. Before doing the math, you’re looking at a sheet … Read More
JSCalc
Root Mean Squared Error Calculator
It’s hard to predict future, and so you measure how wrong you were when you got it wrong. Maybe you predicted the weather, or traffic … Read More
Mean Squared Error Calculator
Until one day there is a cold snap. Your average error rise. This happens because of the mean squared error. To compute mean squared error, … Read More
ROC AUC Calculator
A binary classifier is like a gatekeeper. It’s on guard at the door to your workflow, it determines whether a patient receives an MRI, a … Read More
Confusion Matrix Calculator – Accuracy, F1, MCC
Is this a fraud? Will I get cancer from this tumor? Is this email spam? It sounds like a simple yes/no question, but the answer … Read More
F1 Score Calculator – Precision, Recall, and F-Beta
Accuracy is the deadliest lie in data science. You train a model to spot some kind of rare fraud. It is ninety-nine percent accurate! That’s … Read More
Accuracy and Precision Calculator
It’s amazing first time you run a model that gets 98 percent correct. It feels magical. But then you look at confusion matrix and notice … Read More
Negative Predictive Value Calculator
Okay, you got the bad news: negative. Clear, said the screen and cleared you as healthy, said the doctor. But unless you know what a … Read More
Positive Predictive Value Calculator
Imagine you’re running a screening test on a thousand people. The test seems great: 95% of the people who have disease test positive. And 95% … Read More
Sensitivity and Specificity Calculator
Each diagnostic test you perform is actualy a guessing game, but on partial information. Patient may or may not be ill. The test may or … Read More