11. Calculate mean, standard deviation or standard error in ExcelMean (average) Standard Deviation (SD) and Standard Error (SE) For t-tests and ANOVA, when presenting your data in a report or paper, you...
12. Summarise a large data set in R into mean, SD, and SE using R package "plyr"Summarsing a large dataset You can use the R function “ddply” from package “plyr” to summarise a large data set that has multiple factors...