# Module Std.Text_graph

    module Text_graph: Text_graph

This module renders text graphs to visualize data on the terminal. A typical text graph looks like a bar graph as shown below:

     label1     3786 |----+----1----+----2---- ... ----+----7----+----8----+----9----+----|
     label2     3653 |----+----1----+----2---- ... ----+----7----+----8----+----9----+-
     label3     1055 |----+----1----+----2----+--
     label4      308 |----+---
     label5       70 |-
     label6      404 |----+----1
     label7       71 |-
     label8       32 |
    (each '-' is approximately 37.860 units.)

    val render : ?narrow:bool -> (string * float) list -> string

Renders a text graph given labels and values. The list should be non-empty and the specified values must be positive numbers. Setting narrow enables narrower graphs.