Thanks, I have also posted this question on Stackoverflow (http://stackoverflow.com/questions/29377097/lua-module-for-calculating-the-m...) someone with Lua skills but not so much with MediaWiki Lua templating and they gave this code:
|local AtomicWeightLookup= { C= 12.01, H= 1.001, O= 16 }
local function Calculate(Input) -- Input Example: {C = 2, H = 6, O = 1} local Result= 0 -- Iterate through Input table for Element,Quantityin next,Inputdo -- If element is not found in table, assume 0 weight. local AtomicWeight= AtomicWeightLookup[Element] or 0 -- Multiply Result= Result+ Quantity* AtomicWeight end return Result end
-- EXAMPLE print(Calculate({C= 2, H= 6, O= 1}))|
but as you can see there's no variables in here that are set by MediaWiki templates, but it seems like a decent starting place.
On 1/04/2015 7:41 AM, Pine W wrote:
Pinging Jmorgan who I believe knows Lua. (:
Pine On Mar 31, 2015 2:27 PM, "Brenton Horne" brentonhorne77@gmail.com wrote:
I have just tried solving this problem myself, using the /Module:Molar mass calculator/:
-- Setting up p and args local p= {}; local args M= mw.loadData( 'Module:Standard atomic weight' ); function dotprod(a, b) local ret= 0 for i= 1, #ado ret= ret+ a[i] * b[i]; end return ret end return dotprod(args, M)
with /Module:Standard atomic weight/ having the contents:
local M= {} M[Ag] = 107.8682 -- Silver (Ag) M[As] = 74.921595 -- Arsenic (As) M[Au] = 196.966569 -- Gold (Au) M[B] = 10.8135 -- Boron (B) M[Ba] = 137.327 -- Barium (Ba) M[Bi] = 208.9804 -- Bismuth (Bi) M[Br] = 79.904 -- Bromine (Br) M[C] = 12.0106 -- Carbon (C) M[Ca] = 40.078 -- Calcium (Ca) M[Cl] = 35.4515 -- Chlorine (Cl) M[Co] = 58.933194 -- Cobalt (Co) M[Cu] = 63.546 -- Copper (Cu) M[C] = 18.998403163 -- Fluorine (F) M[Fe] = 55.845 -- Iron (Fe) M[Ga] = 69.723 -- Gallium (Ga) M[H] = 1.007975 -- Hydrogen (H) M[Hg] = 200.592 -- Mercury (Hg) M[I] = 126.90447 -- Iodine (I) M[K] = 39.0983 -- Potassium (K) M[Li] = 6.9675 -- Lithium (Li) M[Mg] = 24.3055 -- Magnesium (Mg) M[Mn] = 54.938044 -- Manganese (Mn) M[N] = 14.006855 -- Nitrogen (N) M[Na] = 22.98976928 -- Sodium (Na) M[Ni] = 58.6934 -- Nickel (Ni) M[O] = 15.9994 -- Oxygen (O) M[P] = 30.973761998 -- Phosphorus (P) M[Pb] = 207.2 -- Lead (Pb) M[Pt] = 195.084 -- Platinum (Pt) M[S] = 32.0675 -- Sulfur (S) M[Tl] = 204.3835 -- Thallium (Tl) M[Zn] = 65.38 -- Zinc (Zn) return M
but this gives the Script error:
Script error: You must specify a function to call.
No further details are available.
If someone is actually planning on helping me with this I'd like to know because I have bad experience with this list and MediaWiki-I list when it comes to Lua questions, in that I never seem to get an answer.
On 1/04/2015 5:06 AM, Brenton Horne wrote:
Hi,
I'd like to be able to calculate the molar mass of chemical compounds using a Lua module so that I could use the output in my infoboxes for chemical compounds and drugs alike. The problem is, I haven't the foggiest how to set up a module, even one that sounds so simple. I was hoping that someone may be able to set things up for me, or at least show me how to do so myself^1 if I gave them the basic idea of what I was hoping this module would do.
Say we call the module Molar mass calculator (i.e., @ /Module:Molar mass calculator/ on my local Wiki is where its Lua code is and the template that invokes it /Template:Molar mass calculator/^2 ). I was thinking of the Lua module using a pair of vectors one (A⇀\vec{A}) containing the user-defined variables^3 of all 84 chemical elements found in appreciable quantities in nature and the other containing the average atomic mass for all these elements (M⇀\vec{M}). Then doing the Lua equivalent to a dot product (i.e., A⇀⋅M⇀=∑i=184AiMi\vec{A}\cdot \vec{M} = \sum_{i=0}^{84} A_i M_i) between these two vectors and using the result as the module's output which would then//used by the template as its output.
Footnotes 1. Keeping in mind I am a programming noob, especially when it comes to Lua, so talk to me like a maths guy that just understands a little MATLAB, NumPy, SciPy, Python and Wikitext and no other programming languages as this is fairly accurate. 2. /Template:Molar mass calculator/, presently has this Wikitext (hence if a change is required please do alert me to it): {{#invoke:Molar mass calculator}}<noinclude>{{Clr}} {{documentation}}</noinclude> 3. These variables are those provided to /Template:Molar mass calculator/ as arguments. For example, if I want to call the template in a Wiki page it may look like this for Ethanol (C_2 H_6 O) {{Molar mass calculator |C = 2 |H = 6 |O = 1 }} and should provide the output of 46.0694 g/mol.Thanks for your time, Brenton
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