2f:[] 2d:{"title":"Overlapping Data","cells":[{"id":0,"value":"# Overlapping Data","pinned":false,"hidden":false,"mode":"md"},{"id":144,"value":"viewof threshold = Inputs.range([0,10],{step:.1})","pinned":false,"hidden":false,"mode":"ojs"},{"id":168,"value":"html`\n\n \n \n \n \n\n \n \n \n\n \n \n \n\n

	Predicted Negative	Predicted Postive
Actual Positive	${falseNegatives}	${truePositives}
Actual Negative	${trueNegatives}	${falsePositives}

\n\n`","pinned":false,"hidden":false,"mode":"ojs"},{"id":5,"value":"Plot.plot({\n x:{domain:[0,10]},\n y:{domain:[0,1]},\n marks:[\n Plot.ruleX([0]),\n Plot.ruleY([0]),\n Plot.dot(Xblue,{x:Xblue,y:Yblue,fill:\"blue\",r:5}),\n Plot.dot(Xred,{x:Xred,y:Yred,fill:\"red\",r:5}),\n Plot.line([[threshold,0],[threshold,1]],{strokeDasharray:\"5,5\"}),\n Plot.line(x,{x:x,y:y,stroke:'red'}),\n Plot.line([[0,.5],[10,.5]],{strokeDasharray:\"5,5\"}),\n Plot.dot(X,{x:X,y:Yhat,fill:'green',r:5})\n ]\n})","pinned":true,"hidden":false,"mode":"ojs"},{"id":188,"value":"### Sigmoid","pinned":false,"hidden":false,"mode":"md"},{"id":192,"value":"f = (x,a,b) => Math.exp(a*x + b)/(1+Math.exp(a*x + b))","pinned":true,"hidden":false,"mode":"ojs"},{"id":190,"value":"x = {\n const x = []\n for(let i = 0; i <= 10; i = i + .1){\n x.push(i)\n }\n return x\n}","pinned":true,"hidden":false,"mode":"ojs"},{"id":194,"value":"y = x.map(x => f(x,0.79000056,-4.18321431))","pinned":true,"hidden":false,"mode":"ojs"},{"id":203,"value":"### The Loss","pinned":false,"hidden":false,"mode":"md"},{"id":211,"value":"Yhat = X.map(X => f(X,0.79000056,-4.18321431))","pinned":true,"hidden":false,"mode":"ojs"},{"id":218,"value":"penalties = X.map((X,i) => \n\n -Y[i]*Math.log(Yhat[i])\n -\n (1-Y[i])*Math.log(1-Yhat[i])\n \n \n )","pinned":true,"hidden":false,"mode":"ojs"},{"id":222,"value":"d3.mean(penalties)","pinned":true,"hidden":false,"mode":"ojs"},{"id":149,"value":"### Positives and Negatives","pinned":false,"hidden":false,"mode":"md"},{"id":153,"value":"trueNegatives = Xblue.filter(x => x <= threshold).length","pinned":false,"hidden":false,"mode":"ojs"},{"id":157,"value":"falseNegatives = Xred.filter(x => x <= threshold).length","pinned":false,"hidden":false,"mode":"ojs"},{"id":159,"value":"truePositives = Xred.filter(x => x > threshold).length","pinned":false,"hidden":false,"mode":"ojs"},{"id":161,"value":"falsePositives = Xblue.filter(x => x > threshold).length","pinned":false,"hidden":false,"mode":"ojs"},{"id":136,"value":"### Data","pinned":false,"hidden":false,"mode":"md"},{"id":124,"value":"Xblue = [0.23172273283556077, 6.261636528327473, 4.6010247891667335, 1.660132912093145, 1.2024450601909025, 4.746559515821619, 4.9280744954032425, 5.250737883974269, 1.7705201542833398, 5.349311712251664]","pinned":false,"hidden":false,"mode":"ojs"},{"id":126,"value":"Xred = [4.557295223920891, 6.8297789235508315, 4.413710405238934, 7.690735156159806, 7.343854883275675, 8.804357813742223, 9.431131316191179, 4.968596810930029, 9.914854428874769, 5.195561411674539]","pinned":false,"hidden":false,"mode":"ojs"},{"id":128,"value":"Yblue = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0]","pinned":false,"hidden":false,"mode":"ojs"},{"id":130,"value":"Yred = [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]","pinned":false,"hidden":false,"mode":"ojs"},{"id":207,"value":"X=[0.23172273, 6.26163653, 4.60102479, 1.66013291, 1.20244506,\n 4.74655952, 4.9280745 , 5.25073788, 1.77052015, 5.34931171,\n 4.55729522, 6.82977892, 4.41371041, 7.69073516, 7.34385488,\n 8.80435781, 9.43113132, 4.96859681, 9.91485443, 5.19556141]","pinned":true,"hidden":false,"mode":"ojs"},{"id":209,"value":"Y = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]","pinned":true,"hidden":false,"mode":"ojs"}],"files":"$W2f","stdlib":"1","titling":"auto"}