Release New Release for Danfojs Node(v0.3.1) and Browser (0.3.1) · javascriptdata/danfojs

New Features

Ability to create empty frames
Flag for toggling between low/high memory mode
Inplace support for all mutating operations
Ability to set Configuration values on frame creation
Support boolean mask for subsetting with iloc and loc. E.g df.iloc({rows: df["count"].gt(5), columns: [0, 1]})
Update an existing column value via subsetting. E.g df["count"] = [1,3,4,5]
Add loc indexing support for Series
Add configuration support for formating DataFrame display in the console
New DataFrame applyMap function for element-wise apply function
and and or logical comparison support. E.g

df.loc({
      rows: df['Salary_in_1000'].gte(100)).and(df['Age'].gt(60))
})

read_csv now uses Papaparse and supports config values for headers, separator, etc.
to_csv , to_json and to_excel functions now support saving to local disk in Node and downloadable in the browser. Also, supports config parameters for output.
read_json now supports config values for headers, authentication, separator, etc.
read_excel now uses XLSX parser, hence supports all XLSX config options.
DataFrame query function now accepts boolean masks with single or multiple conditions. E.g

df.query({
  rows: df['Salary_in_1000'].gte(100)).and(df['Age'].gt(60)) 
})