Generate LaTex (data) tables from Node

This package generates LaTex-Tables in different styles from within a node application.

Features

• Different table styles:
  • booktabs: Pretty booktabs table
  • default: Standard Latex table using double lines
  • ascii: Text table with the clui package. Useful to get a preview of your table before compiling it to LaTeX. Ascii table columns can be configured to do simple test-wrapping.
• Number formatting:
  • You can specify units and decimal scalings for each table column. Column values are then scaled automatically and units and scaling factors are shown in the table header.
  • Format numbers in the table body by precision or number of decimal places
  • Scientific notations are automatically converted to math (5e+5 -> $ 5\cdot 10^{5}$)
• Commenting

  • A latex-comment can be added to each table row. Body comments are added after the line, a header comment is added above the header line.

Installation

Install directly from this repository:

npm install i4h/latex-data-table

Examples

A Simple Table

Quickly generate a table by specifying an array with the header contents and a matrix with the body contents:

var LatexTable = require('latex-data-table');

var header = ["Column1", "Column2"];
var body = [[1,"a"],[2,"b"]];
/* Generate latex code */
var latex = LatexTable(body, header);

The generated table will look like this:

Check examples/simple_latex.* to find the full example and the generated latex.

A Data Table

The example in examples/showcase_latex demonstrates how to actually show and format some data. Options for individual columns are defined in the header:

var LatexTable = require('latex-data-table');

var options = {
	style = 'booktabs'
	caption = '...',
	label = '...',
};

var header = {
    comment: "header comment" ,
    cells:
        [
            {
                content: 'Name',
                spec: "l"},
            {
                content: 'Power',
                spec: "r",
                decimalScaling: "1",
                units: "Gazillions",
                formatter: {decimals: 0}
            },
            {
                content: 'Loading time',
                spec: "r",
                decimalScaling: "-1",
                units: "Seconds",
                formatter: {precision: 2}
            },
        ]
};

var body = [
    {
        comment: "first line comment",
        cells: ['vim', '15', 0.2]
    },
    {
        comment: "second line comment",
        cells: ['emacs', '10000', 1234]
    },
];

/* Generate latex code */
var result = LatexTable(body, header);

The generated table in default and booktab styling will look like this:

To output your table to the console for a preview, use the ascii style. Column width can be controlled manually by setting the colWidth property on the corresponding column.

  Name      Power [10 Gazillions]              Loading time [10^{-1} Seconds]     
  --------------------------------------------------------------------------------
  vim       2                                  2.0                                 #first line comment
  emacs     1000                               1.2e+4                              #second line comment