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Articles on Trending Technologies
Technical articles with clear explanations and examples
How to multiply single row matrix and a square matrix in R?
To multiply single row matrix and a square matrix in R, we can follow the below steps −First of all, create the matrices.Then, use %*% to multiply those matrices.ExampleCreate the first matrixLet’s create a matrix as shown below −M1
Read MoreHow to display square root sign in base R plot?
To display square root sign in base R plot, we can follow the below steps −First of all, create a plot having square root values to display default visualisation.Then, create the plot with expression function to display square root sign in the plot.ExampleCreate plot in base RUsing plot function to create a plot in base R with square root values as shown below −x
Read MoreHow to repeat a whole data frame in R?
To repeat a whole data frame in R, we can follow the below steps −First of all, create a data frame.Then, use rep function to repeat the data frame.ExampleCreate the data frameLet’s create a data frame as shown below −x
Read MoreHow to remove rows that contain NAs in R matrix?
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
Read MoreHow to display mean for each group in point chart using ggplot2 in R?
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 frameLet’s create a data frame as shown below −grp
Read MoreHow to convert alphabets to numbers in R data frame?
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 −x
Read MoreHow to remove double inverted commas in R matrix?
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
Read MoreHow to convert first letter of multiple string columns into capital in R data frame?
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 data frameLet’s create a data frame as shown below −Names
Read MoreHow to find the index of values in an R data frame column if they occur once?
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 column if they occur once.ExampleCreate the data frameLet’s create a data frame as shown below −x
Read MoreHow to create a column with column name for maximum value in each row of an R data frame?
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 value in each row of an R data frame.ExampleCreate the data frameLet’s create a data frame as shown below −x
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