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<no name> by Anonymous

u## K means clustering
## read input dataset "iris"
data(iris)
head(iris)
newiris<-iris
head(newiris)
newiris$Species<-NULL
head(newiris)

kc<-kmeans(newiris,3)
kc

## Compare the species label with the clustering result
table(iris$Species, kc$cluster)

## Plot the clusters and their centers
plot(newiris[c("Sepal.Length", "Sepal.Width")], col = kc$cluster)
points(kc$centers[, c("Sepal.Length", "Sepal.Width")], col = 1:3, pch = 8, cex = 2)

data(iris)
mydata <- na.omit(iris[, -5])
mydata <- scale(mydata)
wss <- 0
for (i in 1:15) wss[i] <- sum(kmeans(mydata, centers = i)$withinss)
plot(1:15, wss, type = "b", xlab = "Number of Clusters", ylab = "Within group sum of squares")

​x
 
u## K means clustering
## read input dataset "iris"
data(iris)
head(iris)
newiris<-iris
head(newiris)
newiris$Species<-NULL
head(newiris)
​
kc<-kmeans(newiris,3)
kc
​
## Compare the species label with the clustering result
table(iris$Species, kc$cluster)
​
## Plot the clusters and their centers
plot(newiris[c("Sepal.Length", "Sepal.Width")], col = kc$cluster)
points(kc$centers[, c("Sepal.Length", "Sepal.Width")], col = 1:3, pch = 8, cex = 2)
​
data(iris)
mydata <- na.omit(iris[, -5])
mydata <- scale(mydata)
wss <- 0
for (i in 1:15) wss[i] <- sum(kmeans(mydata, centers = i)$withinss)
plot(1:15, wss, type = "b", xlab = "Number of Clusters", ylab = "Within group sum of squares")
                  

Compilation error (line 13, col 36): Invalid expression term '<'
Compilation error (line 17, col 10): ; expected
Compilation error (line 17, col 19): ; expected
Compilation error (line 17, col 19): Invalid expression term '>'
Compilation error (line 17, col 20): Invalid expression term ';'
Compilation error (line 20, col 29): Invalid expression term '<'
Compilation error (line 20, col 36): ; expected
Compilation error (line 20, col 45): ; expected
Compilation error (line 20, col 45): Invalid expression term '>'
Compilation error (line 20, col 46): Invalid expression term ';'
Compilation error (line 23, col 28): Invalid expression term '<'
Compilation error (line 23, col 35): ; expected
Compilation error (line 23, col 44): ; expected
Compilation error (line 23, col 44): Invalid expression term '>'
Compilation error (line 23, col 45): Invalid expression term ';'
Compilation error (line 27, col 38): Invalid expression term '<'
Compilation error (line 27, col 45): ; expected
Compilation error (line 27, col 54): ; expected
Compilation error (line 27, col 54): Invalid expression term '>'
Compilation error (line 27, col 55): Invalid expression term ';'
Compilation error (line 17, col 4): The name 'write' does not exist in the current context
Compilation error (line 17, col 10): The type or namespace name 'code' could not be found (are you missing a using directive or an assembly reference?)
Compilation error (line 20, col 30): The name 'write' does not exist in the current context
Compilation error (line 20, col 36): The type or namespace name 'code' could not be found (are you missing a using directive or an assembly reference?)
Compilation error (line 20, col 41): A local variable or function named 'here' is already defined in this scope
Compilation error (line 23, col 29): The name 'write' does not exist in the current context
Compilation error (line 23, col 35): The type or namespace name 'code' could not be found (are you missing a using directive or an assembly reference?)
Compilation error (line 23, col 40): A local variable or function named 'here' is already defined in this scope
Compilation error (line 27, col 39): The name 'write' does not exist in the current context
Compilation error (line 27, col 45): The type or namespace name 'code' could not be found (are you missing a using directive or an assembly reference?)
Compilation error (line 27, col 50): A local variable or function named 'here' is already defined in this scope
Compilation error (line 17, col 15): The variable 'here' is declared but never used
Compilation error (line 20, col 41): The variable 'here' is declared but never used
Compilation error (line 23, col 40): The variable 'here' is declared but never used
Compilation error (line 27, col 50): The variable 'here' is declared but never used
Compilation error (line 11, col 27): This async method lacks 'await' operators and will run synchronously. Consider using the 'await' operator to await non-blocking API calls, or 'await Task.Run(...)' to do CPU-bound work on a background thread.

Last Run:	3:53:35 am
Compile:	0.008s
Execute:	0s
Memory:	0b
CPU:	0s

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