library(VIM)
message("kNN exact results")
df <- data.frame(Class=c(rep("A",5),rep("B",5)),
X1=1L,X2=rep(c(2L,3L),each=5),
ClassNum=rep(c(1L,2L),each=5),
Row=1:10,Row2=1:10,
ord=ordered(c(rep("A",5),rep("B",5))),
stringsAsFactors = FALSE)
# kNN Tests - exact1",{
df[3,3] <- NA
df[8,3] <- NA
dfImp <- kNN(df
,k = 1
,dist_var = c("X1", "Class") , trace = TRUE
)
expect_true(dfImp$X2[3]==2)
expect_true(dfImp$X2[8]==3)
dfImp2 <- kNN(df
,variable = c("X2","Row")
,k = 1
,dist_var = c("Class"))
expect_true(dfImp2$X2[3]==2)
expect_true(dfImp2$X2[8]==3)
dfImp3 <- kNN(df
,variable = c("X2","Row")
,k = 1
,dist_var = c("X1", "ClassNum"))
expect_true(dfImp3$X2[3]==2)
expect_true(dfImp3$X2[8]==3)
#
# kNN Tests - exact2",{
df[3,5] <- NA
df[8,5] <- NA
dfImp <- kNN(df
,k = 1
,dist_var = c("Row2"), addRandom = FALSE
)
expect_true(dfImp$Row[3]==2)
expect_true(dfImp$Row[8]==7)
dfImp <- kNN(df
,k = 1
,dist_var = c("Row2","Class"), addRandom = FALSE
)
expect_true(dfImp$Row[3]==2)
expect_true(dfImp$Row[8]==7)
dfImp <- kNN(df
,k = 1
,dist_var = c("Row2","Class","X1"), addRandom = FALSE
)
expect_true(dfImp$Row[3]==2)
expect_true(dfImp$Row[8]==7)
#
# kNN Tests - exact3",{
df[3,5] <- NA
df[8,5] <- NA
dfImp <- kNN(df
,k = 1
,dist_var = c("ord"), addRandom = FALSE
)
expect_true(dfImp$Row[3]==1)
expect_true(dfImp$Row[8]==6)
dfImp <- kNN(df
,k = 1
,dist_var = c("Row2","Class","ord"), addRandom = FALSE
)
expect_true(dfImp$Row[3]==2)
expect_true(dfImp$Row[8]==7)
dfImp <- kNN(df
,k = 1
,dist_var = c("Row2","Class","X1","ord"), addRandom = FALSE
)
expect_true(dfImp$Row[3]==2)
expect_true(dfImp$Row[8]==7)
#
df <- data.frame(Class=c(rep("A",5),rep("B",5)),
X1=1L,X2=rep(c(2L,3L),each=5),
ClassNum=rep(c(1L,2L),each=5),
Row=1:10,Row2=1:10,
ord=ordered(c(rep("A",5),rep("B",5))),
stringsAsFactors = TRUE)
# kNN Tests - exact1 - stringsAsFactors",{
df[3,3] <- NA
df[8,3] <- NA
dfImp <- kNN(df
,k = 1
,dist_var = c("X1", "Class") , trace = TRUE
)
expect_true(dfImp$X2[3]==2)
expect_true(dfImp$X2[8]==3)
dfImp2 <- kNN(df
,variable = c("X2","Row")
,k = 1
,dist_var = c("Class"))
expect_true(dfImp2$X2[3]==2)
expect_true(dfImp2$X2[8]==3)
dfImp3 <- kNN(df
,variable = c("X2","Row")
,k = 1
,dist_var = c("X1", "ClassNum"))
expect_true(dfImp3$X2[3]==2)
expect_true(dfImp3$X2[8]==3)
#
# kNN Tests - exact2 - stringsAsFactors",{
df[3,5] <- NA
df[8,5] <- NA
dfImp <- kNN(df
,k = 1
,dist_var = c("Row2"), addRandom = FALSE
)
expect_true(dfImp$Row[3]==2)
expect_true(dfImp$Row[8]==7)
dfImp <- kNN(df
,k = 1
,dist_var = c("Row2","Class"), addRandom = FALSE
)
expect_true(dfImp$Row[3]==2)
expect_true(dfImp$Row[8]==7)
dfImp <- kNN(df
,k = 1
,dist_var = c("Row2","Class","X1"), addRandom = FALSE
)
expect_true(dfImp$Row[3]==2)
expect_true(dfImp$Row[8]==7)
#
# kNN Tests - exact3",{
df[3,5] <- NA
df[8,5] <- NA
dfImp <- kNN(df
,k = 1
,dist_var = c("ord"), addRandom = FALSE
)
expect_true(dfImp$Row[3]==1)
expect_true(dfImp$Row[8]==6)
dfImp <- kNN(df
,k = 1
,dist_var = c("Row2","Class","ord"), addRandom = FALSE
)
expect_true(dfImp$Row[3]==2)
expect_true(dfImp$Row[8]==7)
dfImp <- kNN(df
,k = 1
,dist_var = c("Row2","Class","X1","ord"), addRandom = FALSE
)
expect_true(dfImp$Row[3]==2)
expect_true(dfImp$Row[8]==7)
#
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.