To find the product of vector elements in pairs moving forward, we can use prod function along with combn function.For Example, if we have a vector called V and we want to find the product of elements of V in pairs moving forward then we can use the following command ... Read More

To create bar plot using ggplot2 with structure data, we need to set the stat argument of geom_bar function to identity. This is same for the regular data frame.For example, if we have a structured data frame called df that contains a column X for categories and a numerical column ... Read More

To display data frame name in ggplot2 graph title, we can use ggtitle function and pass the name of the data frame.For example, if we have a data frame called df that contains two columns say x and y and we can create a point chart between x and y ... Read More

To check if any value in an R vector is greater than or less than a certain value, we can use any function.For Example, if we have a vector called V and we want to check if any value in V is greater than 100 then we can use the ... Read More

To create a colored frame for ggplot2 graph, we can use theme function and set the plot.background argument to different color for rectangular element.For example, if we have a data frame called df that contains two columns say X and Y then we can create point chart between X and ... Read More

To add title to regression model using stargazer, we can use title argument inside stargazer function.For example, if we have a model called Reg_Model with Output as text then the title to this model using stargazer can be added by using the below mentioned command −stargazer(Reg_Model, type="text", title="Regression Model between ... Read More

To delete a row from an R data frame if any value in the row is greater than n can be done by using the subsetting with single square brackets and negation operator. We will subset the values that are greater than n and then take the negation of the ... Read More

To find the sum product of two matrix by row in R, we can use rowSums function by passing the multiplication of the matrices.For example, if we have two matrices say Matrix1 and Matrix2 then, the sum product of these two matrices by row can be found by using the ... Read More

To multiply each value in a column by a constant, we can use multiplication sign *.For example, if we have a data frame called df that contains a column say x. Now, if we want to multiply each value in x with 10 then we can use the below mentioned ... Read More

The error invalid xlim value occurs when we incorrectly provide the xlim values, these values are not used in sequence, we just need to provide first and the last value. For Example, if we want to create a point chart of 1 to 5 with xlim having values between -5 ... Read More