Recent changes to OCaml_tutorial

OCaml_tutorial modified by Alan W. Irwin

Alan W. Irwin — Sat, 03 Nov 2018 08:29:09 -0000

--- v4
+++ v5
@@ -1,3 +1,15 @@
+
+
 Intro
 -----

OCaml_tutorial modified by Alan W. Irwin

Alan W. Irwin — Sun, 05 Oct 2014 19:32:46 -0000

OCaml_tutorial modified by Alan W. Irwin

Alan W. Irwin — Sat, 04 Oct 2014 01:39:22 -0000

--- v2
+++ v3
@@ -16,7 +16,7 @@

 which gives output which looks something like this:

-[[img src=quick_plot_bare.png alt=quick_plot_bare.png]]
+[[img src=Quick_plot_bare.png alt=Quick_plot_bare.png]]

 That's great, but it would be even better if there were labels so that we know what the axes mean and a legend to show which line corresponds with which function. We can do that:

@@ -27,7 +27,7 @@

 with output which looks something like this:

-[[img src=quick_plot_labels.png alt=quick_plot_labels.png]]
+[[img src=Quick_plot_labels.png alt=Quick_plot_labels.png]]

 Much better, and much easier to interpret!

OCaml_tutorial modified by Alan W. Irwin

Alan W. Irwin — Sat, 04 Oct 2014 01:38:05 -0000

--- v1
+++ v2
@@ -16,7 +16,7 @@

 which gives output which looks something like this:

-![](quick_plot_bare.png "quick_plot_bare.png")
+[[img src=quick_plot_bare.png alt=quick_plot_bare.png]]

 That's great, but it would be even better if there were labels so that we know what the axes mean and a legend to show which line corresponds with which function. We can do that:

@@ -27,7 +27,8 @@

 with output which looks something like this:

-![](quick_plot_labels.png "quick_plot_labels.png")
+[[img src=quick_plot_labels.png alt=quick_plot_labels.png]]
+

 Much better, and much easier to interpret!

OCaml_tutorial modified by Alan W. Irwin

Alan W. Irwin — Sat, 04 Oct 2014 01:25:38 -0000

Intro

The OCaml bindings for PLplot provide three means of accessing PLplot's functionality through three modules, Plplot, Plplot.Plot and Plplot.Quick_plot. In versions 5.9.6 and later the OCaml sections of the PLplot documentation includes a tutorial which introduces each of these modules. This tutorial is meant to expand on that material and allow for a simpler process for contributing improvements.

Using the Quick_plot module

The main OCaml PLplot module is meant to be open'd:

open Plplot

From here, one can try out a quick plot of sin and cos:

Quick_plot.func [sin; cos] (-3.14, 3.14)

which gives output which looks something like this:

That's great, but it would be even better if there were labels so that we know what the axes mean and a legend to show which line corresponds with which function. We can do that:

Quick_plot.func
~labels:("Angle (radians)", "f(x)", "A few functions")
~names:["sin"; "cos"]
[sin; cos] (-3.15, 3.15)

with output which looks something like this:

Much better, and much easier to interpret!

The content of this page is available under the GNU Free Documentation License 1.2.