KH.nineNumbers.by: Produce table of nine-numbers grouped by a given column in...
In ks465/r-utils: A Collection of Wrappers for Frequently Used Codes

Description Usage Arguments Details See Also Examples

Produce table of nine-numbers grouped by a given column in the data.

1 2	KH.nineNumbers.by(DT, x, groupBy, titles = NULL, decimal = "default", order = NULL)

`DT`	data.table date.table of at least one column of numbers and at least one column of factoring element to calculate statistics.
`x`	string. Name of vector containing the data to extract statistics for.
`groupBy`	string. Name of vector containig grouping factors.
`titles`	string. Vector of strings with 9 member as col.names of the results.
`decimal`	integer. Set precision for vectors in resultant quantile. Default is `decimal` in package.
`order`	string. Not implemented yet. Sort order of columns.

For an appropriate insight into the data 9 numbers are consulted usually. These nine numbers consist of length, minimum, lower-hinge, median, upper-hinge, maximum, mean, sd of a data vector. This function creates a row for each grouped item.

Other Stats: KH.IQR, KH.max, KH.mean, KH.median, KH.min, KH.nineNumbers.table, KH.nineNumbers.total, KH.quant.10, KH.quant.25, KH.quant.75, KH.quant.n, KH.sd

{
set.seed(100)
library(data.table)
df <- data.table(
   x = rnorm(20),
   y = sample(LETTERS[1:3], 20, replace = TRUE)
)
x=KH.nineNumbers.by(df, 'x', 'y')
}