To remove rows that contain NAs in R matrix, we can follow the below steps −First of all, create a matrix.Then, use na.omit function to remove rows that contains NAs.ExampleCreate the matrixLet’s create a matrix as shown below −M

To display mean for each group in point chart using ggplot2 in R, we can follow the below steps −First of all, create a data frame.Then, use geom_point and geom_summary functions and provide mean for fun argument with different size and shape of the point for mean display.ExampleCreate the data ... Read More

To remove double inverted commas in R vector, we can follow the below steps −First of all, create a vector.Then, use print function along with quote argument.Example 1Create the vectorLet’s create a vector as shown below −x1

To find the percentage of values that lie within a range in column of a data.table object in R, we can follow the below steps −First of all, create a data.table object.Then, use sum function along with extreme values for range and length function to find the percentage of values ... Read More

To convert alphabets to numbers in R data frame, we can follow the below steps −First of all, create a data frame.Then, use mutate_each function of dplyr package along with chartr function to convert alphabets to numbers.ExampleCreate the data frameLet’s create a data frame as shown below −xRead More

To remove double inverted commas in R matrix, we can follow the below steps −First of all, create a matrix.Then, use print function along with quote argument.ExampleCreate the matrixLet’s create a matrix as shown below −M

To convert first letter of multiple string columns into capital in R data frame, we can follow the below steps −First of all, create a data frame with string columns.Then, use sub function along with mutate_each function of dplyr package to convert first letter into capital in string columns.ExampleCreate the ... Read More

To subset a data.table object by specifying columns that contains NA, we can follow the below steps −First of all, create a data.table object with some columns containing NAs.Then, use is.na along with subset function to subset the data.table object by specifying columns that contains NA.ExampleCreate the data.table objectLet’s create ... Read More

To find the index of values in an R data frame column if they occur once, we can follow the below steps −First of all, create a data frame.Then, use which function along with duplicated function and single square brackets for subsetting to find the index of values in a ... Read More

To create a column with column name for maximum value in each row of an R data frame, we can follow the below steps −First of all, create a data frame.Then, use mutate function of dplyr package along with max.col function to create a column with column name for maximum ... Read More