| PC-Axis Dataformat: It was created by Erik Malmborg, Statistics Sweden, in the 1970s. He used an early form of object oriented programming (OOP) from SmallTalk and put all in text-files nnn.PX The format has been very successful. Only disadvantage is that it does not use dot-format, which to-day dominates in OOP. Using my suggested dot-format, one can fairly easy write HTML-applications for tables, graphs, maps. The interest in javascript is strong to-day - JSON! I have two old apps in DHTML, and a new one in HTML5 Canvas, see • BJ-Maps - for all three. Contact: Bo Justusson, Stockholm Has worked at Statistics Sweden, now retired. e-mail: justusXownit.nu (change X to @). |
PX.JS-format: My suggestion for Javascript formulation: Single variables the same: e.g. CONTENTS="Population"; PX Array variables: e.g. STUB="region","age"; CODES("region")="0114","0115",....,"2584"; Javascript: VAR[0].NAME="region"; VAR[0].CODES=["0114","0115",...,"2584"]; PX Multidim. DATA= 7444 7459 ....4683; Javascript: DATA=[ 7444,7459,...., 479 ]; I have written a small program px2js.exe that converts nnn.px-files to nnn.px.js-files. - The changes are so small that I could write it generically, i.e. it handles any PX-keywords. |
Usage: PX.JS-files can be put into HTML-pages using: <script src="nnn.px.js"> </script> - Then all values can be used with its variable names in javascript in the HTML-page. - For DATA one needs to calculate ipos for values, e.g. myval=DATA[ipos]; - Note: In the px.js-file the VAR object array is created with some standard code. Examples with PX.JS-data in webpages: • BJ-Maps, justus2.se/stat/maps - with - Maps for Sweden, Norway, Denmark, Finland, - Animated population pyramids, by municipality - Chart for men/women by occupation,municipality |
| PX-file Population by region, age, time | PX.JS-file - obtained from px2js.exe - (Server-output can be programmed!) |
Webbplats: www.justus2.se Program: © Bo Justusson, Stockholm.