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Nizamuddin Siddiqui has Published 2307 Articles
Nizamuddin Siddiqui
461 Views
To subset rows of data frame without NA using dplyr in R, we can follow the below steps −First of all, create a data frame.Then, use filter function of dplyr package to subset the rows with !is.na.Create the data frameLet's create a data frame as shown below − Live DemoxRead More
Nizamuddin Siddiqui
481 Views
To subset row values based on columns name in R data frame, we can follow the below steps −First of all, create a data frame.Then, create a sample of column names of size equal to number of rows in the data frame and row names in the same manner with ... Read More
Nizamuddin Siddiqui
3K+ Views
To find the point estimate using regression model in R, we can follow the below steps −First of all, create a data frame.Then, create the regression model.After that, define the value for which we want to find the point estimate and use predict function to find the estimate.Create the data ... Read More
Nizamuddin Siddiqui
682 Views
To find the column mean of first n number of rows in R data frame, we can follow the below steps −First of all, create a data frame.Then, use colMeans function by reading the data frame with matrix function and nrow argument.Example1Create the data frameLet's create a data frame as ... Read More
Nizamuddin Siddiqui
46 Views
To create a scatterplot between a variable and an equation in R, we can follow the below steps −First of all, create a vectorThen, create the equation and store it in an object.After that, use plot function to create the plot between vector and equation objectCreate the vectorLet’s create a ... Read More
Nizamuddin Siddiqui
255 Views
To divide the data frame row values by row median in R, we can follow the below steps −First of all, create a data frame.Then, use apply function to divide the data frame row values by row median.Create the data frameLet's create a data frame as shown below − Live DemoxRead More
Nizamuddin Siddiqui
72 Views
To find the maximum value for each row of all matrices stored in an R list, we can follow the below steps −First of all, create a list of matrices.Then, use max function along with lapply function and apply function to find the maximum for each row of all matrices.Create ... Read More
Nizamuddin Siddiqui
253 Views
To find the maximum value of all matrices stored in an R list, we can follow the below steps −First of all, create a list of matrices.Then, use max function along with unlist and lapply function to find the maximum of all matrices.Create the list of matricesUsing matrix function to ... Read More
Nizamuddin Siddiqui
699 Views
To subset rows that contains maximum depending on another column in R data frame, we can follow the below steps −First of all, create a data frame with one numerical and one categorical column.Then, use tapply function with max function to find the rows that contains maximum in numerical column ... Read More