Attention to participants: Intro to R and Reference Management January 7, 2015 (image from: writingclassesforkids.com) For Intro to R and Reference Management course participant. Be sure to download and install all the required softwares prior to enter… Read More
matrix aggregation: Upcoming post on R from dummies December 6, 2014 Dear friends, After a long hiatus, here’s my new post (in Bahasa Indonesia) about matrix aggregation. This article is a collaboration between me and… Read More
Several more things about data analysis August 1, 2014 Outline Part 1: Data in business 1.1 Introduction 1.2 Data in business: why is it so important 1.2.1 Forecasting: we need to know the… Read More
How to make variogram with geoR package June 28, 2014 [image from: leg.ufpr.br] This pdf was first posted at http://erwinirawansblog.blogspot.com. The following pdf contains code on how to make a simple variogram. However I… Read More
Blogpost arrangement June 25, 2014 [image from: personal collection, a path way in UWS MacArthur Campus] Dear friends, It’s another 10… Read More
[#R] How to convert coordinate system using R June 17, 2014 (image from: commons.wikimedia.org) This post is originally posted at my blogspot site. This is a simple code for R beginner. Just open the file and I… Read More
Using Pairs Function: an R tutorial June 10, 2014 (image from: twistynoodle.com) This post was originally posted in my blogspot site. It is about using basic “pairs” function in R and how to build… Read More
[TeX] First TeX documents April 2, 2014 After a long winding road working my first hydrological codes (following the Hydromad Tutorial by Felix Andrews, getting to know R environment in Willem… Read More