How to Filter Rows In R?

How to Filter Rows In R, it’s common to want to subset a data frame based on particular conditions. Fortunately, using the filter() function from the dplyr package makes this simple. library(dplyr) This tutorial...

Nonlinear Regression Analysis in R

Nonlinear Regression Analysis in R, when at least one of the parameters in a regression appears to be nonlinear, it is called nonlinear regression. It is often used to sort and analyze data from...

What Is the Best Way to Filter by Date in R?

What Is the Best Way to Filter by Date in R?, Using the dplyr package in R, you can filter a data frame by dates using the following methods. Subsetting with multiple conditions in...

Crosstab calculation in R

Crosstab calculation in R, To create a crosstab using functions from the dplyr and tidyr packages in R, use the following basic syntax. df %>%   group_by(var1, var2) %>%   tally() %>%   spread(var1,...

Set Axis Label Position in ggplot2

Set Axis Label Position in ggplot2, To change the axis label location in ggplot2, use the following syntax. theme(axis.title.x = element_text(margin=margin(t=70)), axis.title.y = element_text(margin=margin(r=40))) For the margin argument, you can use the letters t,...

Augmented Dickey-Fuller Test in R

Augmented Dickey-Fuller Test in R, If a time series has no trend, constant variance over time, and a consistent autocorrelation structure across time, it is considered to be “stationary.” An augmented Dickey-Fuller test, which...

droplevels in R with examples

droplevels in R with examples, To remove unneeded factor levels, use R’s droplevels() function. This function comes in handy when we need to get rid of factor levels that are no longer in use...