Recent questions and answers in Data Handling using R

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To reset the grid to normal layout, after displaying multiple charts in single view could be obtained by

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304 Stainless Steel

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low price 26 Inch Electric Fireplace Insert

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Which Semantic element is best suitable for content like blog post that is self contained, independent and can be republished

answered Jun 12, 2019 in Data Handling using R by anonymous

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If x and y are two tbls, which of the following joins return all rows from x where there are not matching values in y, keeping just columns from x?

answered Jun 7, 2019 in Data Handling using R by tempuser (391 points)

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If x and y are two tbls, which of the following joins return all rows from x and y irrespective of matching values?

answered Jun 7, 2019 in Data Handling using R by tempuser (391 points)

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If x and y are two tbls, which of the following joins return all rows from y, and all columns from x and y?

answered Jun 7, 2019 in Data Handling using R by tempuser (391 points)

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If x and y are two tbls, which of the following joins return all rows from x where there are matching values in y, and all columns from x and y?

answered Jun 7, 2019 in Data Handling using R by tempuser (391 points)

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If x and y are two tbls, which of the following joins return all rows from x where there are matching values in y, keeping just columns from x?

answered Jun 7, 2019 in Data Handling using R by tempuser (391 points)

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In the iris dataset, how many flowers of species setosa havePetal.Length/Petal.Width ratio of less than 10

answered Jun 7, 2019 in Data Handling using R by tempuser (391 points)

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In the mtcars dataset, how many cars provide a mileage of less than 20 mpg?

answered Jun 7, 2019 in Data Handling using R by tempuser (391 points)

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What is the average mileage of a car in the mtcars dataset-

answered Jun 7, 2019 in Data Handling using R by tempuser (391 points)

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In the iris dataset, how many flowers havePetal.Length/Petal.Width ratio of less than 10

answered Jun 7, 2019 in Data Handling using R by tempuser (391 points)

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In the hflights dataset, how many flights were cancelled in the month of January 2011.

answered Jun 7, 2019 in Data Handling using R by tempuser (391 points)

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Which of the following functions does not list the total number of observations in a dataset?

answered Jun 7, 2019 in Data Handling using R by tempuser (391 points)

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Which of the following functions lists all columns in a dataset with few values from each column?

answered Jun 7, 2019 in Data Handling using R by tempuser (391 points)

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Which of the following functions can be used to find the number or rows and columns in a dataset?

answered Jun 7, 2019 in Data Handling using R by tempuser (391 points)

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tbl is an extension of:

answered Jun 7, 2019 in Data Handling using R by tempuser (391 points)

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The functions write.c() exports data into file

answered Jun 7, 2019 in Data Handling using R by tempuser (391 points)

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which comand can be used to import data from xlsx file in R

answered Jun 7, 2019 in Data Handling using R by tempuser (391 points)

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which package is used to import data from SQL server to R

answered Jun 7, 2019 in Data Handling using R by tempuser (391 points)

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which of the following is multivariate version of lapply?

answered Jun 7, 2019 in Data Handling using R by tempuser (391 points)

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what will following lines of code return x<-matrix(1:18,6,3)____-

answered Jun 7, 2019 in Data Handling using R by tempuser (391 points)

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which function can be used wheb a vector needs to be split into groups_

answered Jun 6, 2019 in Data Handling using R by tempuser (391 points)

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a hospital data contains patients age___

answered Jun 6, 2019 in Data Handling using R by tempuser (391 points)

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which command will print the dataset"mtcars" in ascending order of their milage

answered Jun 6, 2019 in Data Handling using R by tempuser (391 points)

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