Mutate Function in R (mutate, mutate_all and mutate_at) is used to create new variable or column to the dataframe in R. Dplyr package in R is provided with mutate(), mutate_all() and mutate_at() function which creates the new variable to the dataframe. Syntax of mutate fu...
How to create a rank variable using mutate function of dplyr package in R - A rank variable is created to convert a numerical variable into ordinal variable. This is useful for non-parametric analysis because if the distribution of the numerical variable
In the figure below I plotted the power curves for the t-test, as a function of the effect size, assuming a Type I error rate of 5%. Comparing different power curves (based on the sample size of each group) on the same plot, is a useful visual representation of this analysis. We al...
I can not currently recommend actually using “->” in other people’s projects as it is not currently allowed under the most popularRstyle guides. Both:Advanced Rby Hadley WickhamandGoogle’s R Style Guidesay: “Use<-, not=, for assignment.“ I would like to propose that “->” be ...
21.7 R’s Built-in table Function 21.8 Table-Related Functions 21.9 Cross-tabulations Using the jmv Package 21.10 Other Categorical Functions 22. CORRELATION & REGRESSION 22.1 Preparing the Workspace 22.2 Correlation 22.3 R’s Built-in cor Function ...
1.把datetime转成字符串: 2017-11-23 17:05:18 2.把字符串转成datetime: 2017-11-23 16:10:...
mutate (Average = round(rowMeans( cbind(`2011`, `2012`, `2013`, `2014`, `2015`, `2016`), na.rm=T),2), `Improvement` = round((`2011`-`2016`)/`2011`*100,2)) i1 View the table data in it’s raw format We now have the data in the table we want, so let’s display ...
mutate(Pass = Grade >=60) # Print the results df_students ggplot(data = df_students) + geom_col(mapping = aes(x = Name, y = Grade)) # Change the default grey background ggplot(data = df_students) + df_students %>% # Visualize distribution of the grades in a histogra...
install.packages("Rpolyhedra") How to get started (Development version) Install the R package using the following commands on the R console: devtools::install_github("ropensci/Rpolyhedra", build_opts = NULL) Loading the database library(Rpolyhedra) # if want to switch to fullDB in user ...
Sign in to activate sandbox Toolbar keybinding hints are now hidden Runtime File Edit View Comments Run all Kernel Compute not connected # Load the required packages and make them available in your current R session suppressPackageStartupM...