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...n to count the number of non-missing values of each column in a data frame using the sapply function. I have the following code which is receiving the error message below. > n.valid<-sapply(data1,sum(!is.na)) Error in !is.na : invalid argument type Ultimately, I would like for this to be 1 conponent in a larger function that will produce PROC CONTENTS style output. Something like... data1.contents<-data.frame(Variable=names(data1), Class=sapply(data1,class), n.valid=sapply(data1,sum(!is.na)), n.miss=sapply(data1,sum(is.na))) data1.contents Any suggestions/assistance are appreciated. T...

Hello, The application ChairGun2 can't be started up. When starting it shows the mistake: Code: Run-time error ?429? ActiveX conponent can?t create object Wine version 1.2.3 for Cent OS 6.2. is used. This application also didn't work on older versions. What should I do? How to solve the problem? Download ChairGun2: http://turbobit.net/sj18namk8947.html

...m(apply(mydataSNc,2,var)) for (i in 2:15) wss[i] <- sum(kmeans(mydataSNc, centers=i)$withinss) plot(1:15, wss, type="b", xlab="Number of Clusters",ylab="Within groups sum of squares") #perform Kmeans with 2 clusters kmSNc2 <- kmeans(mydataSNc,2) #print conponents of kmSNc2 print(kmSNc2) #plot 2 clusters plot(mydataSNc, col = kmSNc2$cluster) #plot 2 centers points(kmSNc2$centers,col = 1:2, pch = 8) After the above bolded code, I get this following error: > #plot 2 clusters > plot(mydataSNc, col = kmSNc2$cluster) Error in plot.new() : figure...