3 Available operations in datamash

File operations:

transpose

transpose rows, columns of a text file

reverse

reverse fields in each line of a text file

Numeric operations:

sum

sum the of values

min

minimum value

max

maximum value

absmin

minimum of the absolute values

absmax

maximum of the absolute values

Textual/Numeric operations:

count

count number of elements in the group

first

the first value of the group

last

the last value of the group

rand

one random value from the group

unique

comma-separated sorted list of unique values

collapse

comma-separated list of all input values

countunique

number of unique/distinct values

Statistical operations:

mean

mean of the values

median

median value

q1

1st quartile value

q3

3rd quartile value

iqr

inter-quartile range

mode

mode value (most common value)

antimode

anti-mode value (least common value)

pstdev

population standard deviation

sstdev

sample standard deviation

pvar

population variance

svar

sample variance

mad

Median Absolute Deviation, scaled by a constant 1.4826 for normal distributions

madraw

Median Absolute Deviation, unscaled

sskew

skewness of the (sample) group

pskew

skewness of the (population) group

skurt

Excess Kurtosis of the (sample) group

pkurt

Excess Kurtosis of the (population) group

jarque

p-value of the Jarque-Beta test for normality

dpo

p-value of the D’Agostino-Pearson Omnibus test for normality.