import mir.test: shouldApprox;

logisticCDF(-2.0).shouldApprox == 0.1192029;
logisticCDF(-1.0).shouldApprox == 0.2689414;
logisticCDF(-0.5).shouldApprox == 0.3775407;
logisticCDF(0.0).shouldApprox == 0.5;
logisticCDF(0.5).shouldApprox == 0.6224593;
logisticCDF(1.0).shouldApprox == 0.7310586;
logisticCDF(2.0).shouldApprox == 0.8807971;

// Can also provide location/scale parameters
logisticCDF(-1.0, 2.0, 3.0).shouldApprox == 0.2689414;
logisticCDF(1.0, 2.0, 3.0).shouldApprox == 0.4174298;
logisticCDF(4.0, 2.0, 3.0).shouldApprox == 0.6607564;