calculateBasicStatistics function

calculateBasicStatistics

This function calculates the following statistics for a set of data: length, mean, median, variance, standard error of the mean, and confidence interval bounds. The input data must be a vector of 2 or more numerical values.

calculateBasicStatistics(x, alpha = 0.05)

Arguments

• x: The data to be summarized
• alpha: The probability level to be used when constructing the confidence interval bounds.

Returns

A dataframe comprising the length, mean, variance, standard error and confidence limit bounds of the input data x.

Examples

ShortExperimentNames <- c("E1", "E2", "E3", "E4")
FullExperimentNames <- c("EUBAS", "R1UCLM", "R2UCLM", "R3UCLM")
Metrics <- c("Comprehension", "Modification")
Groups <- c("A", "B", "C", "D")
Type <- c(rep("4G", 4))
StudyID <- "S2"
Control <- "SC"
ReshapedData <- ExtractExperimentData(
  KitchenhamEtAl.CorrelationsAmongParticipants.Scanniello14TOSEM,
  ExperimentNames = FullExperimentNames, idvar = "ParticipantID",
  timevar = "Period", ConvertToWide = TRUE
)
NewTable <- ConstructLevel1ExperimentRData(
  ReshapedData, StudyID, ShortExperimentNames, Groups,
  Metrics, Type, Control
)
calculateBasicStatistics(NewTable$r)
#    N    Mean Median Variance      SE LowerBound UpperBound
# 1 32 0.06175 0.1688   0.2482 0.08808    -0.1109     0.2344

Author(s)

Barbara Kitchenham and Lech Madeyski