smart-tools 0.8

A variety of smart tools to make analytics easy.

Dissector

Using the dissector command-line tool

Dissector is a command-line tool that runs analysis on each column in a delimited file. The input can be a single file or a directory with multiple files. The output contains a table of the following each column in the input file:

• strlen: minimum and maximum string length of the column.
• nnull: count of NAs and empty strings.
• nrow: number of rows.
• nunique: number of unique values.
• nvalue: number of rows with values.
• freq: frequency distribution of top n values. n is configured in dissector_config.yaml.
• sample: a sample of top n values. n is configured in dissector_config.yaml.
• symbols: non-alphanumic characters that are not in [a-zA-Z0-9]

Additionally, the following columns:

• column: column name.
• n: column order.
• filename: name of the input file.
• filetype: file type to which the file is associated to (e.g., csv).
• slice: slice to which the row represents
• timestamp: file modified date.
• hash: md5 hash from the input file.
• size: filesize in bytes.

usage: dissector [-h] [-t--to {xlsx,json,csv}] [-s SEP]
                    [--slicers [SLICERS ...]] [-c [COLS ...]]
                    [--config CONFIG]
                    dir file

positional arguments:
  dir                   Input directory
  file                  Input file (for multiple files use wildcard)

optional arguments:
  -h, --help            show this help message and exit
  -t--to {xlsx,json,csv}
                        Dissected as one of: xlsx or json. Default is xlsx.
  -s SEP, --sep SEP     Column separator
  --slicers [SLICERS ...]
                        Informs how to slice data. Default is "" for no
                        slicing.
  -c [COLS ...], --cols [COLS ...]
                        If present, first row will not be used for column
                        names. No duplicates allowed.
  --config CONFIG       Config file for meta data. Defaults to
                        `.\config\dissector_config.yaml`

Before running the command, make sure a yaml config file is created and saved as .\config\dissector_config.yaml at the working directory.

---
nsample: 10
read_csv:
  skipheader: 0
  skipfooter: 0
  engine: python
  encoding: 'utf-8'
  quotechar: '"'
  on_bad_lines: 'warn'
  dtype: 'str'
  keep_default_na: false

Here are some samples:

Fetch *.csv from .\temp and dissect them with delimiter ,.

dissector .\temp *.csv -s ,

Fetch myfile.text from c:\temp and dissect the file with delimiter ;.

dissector c:\temp myfile.text -s ;

Fetch myfile.text from c:\temp and dissect the file with delimiter ; by slicing the data without a filter and with a filter on COLUMN1 == 'VALUE'.

dissector c:\temp myfile.text -s ; --slicers "" "COLUMN1 == 'VALUE'"

Fetch myfile.text from c:\temp and dissect the file with delimiter ; by slicing the data without a filter and with a filter on a column name that has a space in it COLUMN 1 == 'VALUE'.

dissector c:\temp myfile.text -sep ';' --slicers "" "`COLUMN 1` == 'VALUE'"

Using the dissector python libary

TODO

morpher

usage: morpher [-h] [--sep SEP] [--replace] [--to {xlsx,json}] dir file

positional arguments:
  dir               Input directory
  file              Input file or files (wildcard)

optional arguments:
  -h, --help        show this help message and exit
  --sep SEP         Column separator
  --replace         Replace output file if it already exists
  --to {xlsx,json}  How to output dissected result: to_xls|to_json

banking