koala 0.1.0 koala: ^0.1.0 copied to clipboard
A poor man's version of a pandas Dataframe. Collect, access & manipulate related data.
0.0.1 #
Baseline version. Duh.
0.0.2 #
Comply with data file format conventions.
0.0.3 #
Add toCsv
method. Improve method documentation. Remove the rather pointless structureInfo
method.
0.1.0 #
- Add
shape
property,columnIterable
,withColumns
,rowsAt
,rowsWhere
- Incorporate
Column
class being returned upon accessing aDataFrame
column, alongside methods for- transformation:
cumulativeSum
- accumulation:
mean
,max
,min
,sum
- counting:
count
,countElementOccurrencesOf
- null-ridding:
nullFree
,nullFreeIterable
- mask conversion:
equals
,unequals
,isIn
,isNotIn
,maskFrom
; operators:<
,>
,<=
,>=
- transformation:
- Enable conditional rows selection based on columns, e.g.
final filteredDf = df.rowsWhere((df('a') > 7) & df('b').equals(null))