Suppose we are trying to model a classification problem with two labels: 'sick' and 'healthy. For the purpose of this test, we consider a positive result to be testing sick and a negative to test as healthy. After fitting the model with LDA in R, we compare predicted values from the actual values, as shown below: > lda.fit = lda(test.result ~ x1 + x2, data=mydata) predict (1da.fit) > lda. pred > lda.class=lda.pred$class > table (lda.class, mydata$test.result) = mydata lda.pred sick healthy sick 40 healthy 25 32 121

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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Suppose we are trying to model a classification problem with two labels: 'sick'
and 'healthy.' For the purpose of this test, we consider a positive result to be testing
sick and a negative to test as healthy. After fitting the model with LDA in R, we
compare predicted values from the actual values, as shown below:
> lda. fit = 1da (test.result x1 + x2, data-mydata)
> lda. pred
>
lda.class=lda.pred$class
> table (lda.class, mydata$test.result)
=
predict (1da.fit)
mydata
lda.pred sick healthy
sick
40
healthy
25
32
121
Transcribed Image Text:Suppose we are trying to model a classification problem with two labels: 'sick' and 'healthy.' For the purpose of this test, we consider a positive result to be testing sick and a negative to test as healthy. After fitting the model with LDA in R, we compare predicted values from the actual values, as shown below: > lda. fit = 1da (test.result x1 + x2, data-mydata) > lda. pred > lda.class=lda.pred$class > table (lda.class, mydata$test.result) = predict (1da.fit) mydata lda.pred sick healthy sick 40 healthy 25 32 121
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