Davis-height-weight Excel file: http://www.mediafire.com/file/qhi34owgd8o8cw2/Da

Question

Davis-height-weight Excel file: http://www.mediafire.com/file/qhi34owgd8o8cw2/Davis-height-weight.csv

Please do the script in R and show me how to do it. Thank you. I need help.

Davis-height-weight Excel file: http: llwww.mediafire.com/file/qhi34owgd808cw2/Davis-height-weight. csv Consider Davis-height-wei which gives 5 variables for 200 people who exercise sex A factor with levels: F, female; M, male; weight Measured weight in kg; height Measured height in cm; repwt Reported weight in kg, repht Reported height in cm. Consider the height of all males. Put the title as Histogram of height of all males Draw a histogram with these numbers with 10 bins.

Explanation / Answer

#read.csv is used for reading .csv file

Davis<- read.csv(D:davis-height.csv")

#na.omit is used for replacing missing values

#Get type of input data frame columns

col.type <- data.frame("varType"=sapply(Davis-height, function (x) class(x)))

# Convert rownames/variable names to a data frame column

col.type$varName <- rownames(col.type)

# Set row names of data frame to null

rownames(col.type) <- NULL

#here no.of breaks=10

noBreaks <- 10

nCol <- nrow(col.type)

# for loop and if statement running to find the male candidates heights

for(i in 1:nCol){

if(col.type[i,1]=="M"){

# hist function is used for histogram and main indicates title=” Histogram Height males” and xlabel and y label also

    hist(Davis-height [,col.type[i,3]],

         breaks=noBreaks,

         main=paste(" Histogram Height ",col.type[i,3],sep=""),

         xlab=paste(" Breaks : ",col.type[i,3],sep=""),

         ylab="count",

         col="red",

         border="green"

    )

}

}

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