Category: cyber

Adjusting control mortality in LC50/LD50 determination using R

TweetProblem: There are R codes for calculating LC50 or LD50 using 4 to 6 data points. However, none uses control… read more Adjusting control mortality in LC50/LD50 determination using R

Server crash: lesson learned

TweetHow much back do you need to do so that your web serve is “safe”(from hardware failure)? Well I had… read more Server crash: lesson learned

Backing up strategy

TweetI am tired to intervene with routine backups, so I wanted to automate everything. ThisĀ  is accomplished by running cron… read more Backing up strategy

Survival analysis code in SAS

TweetI am using SAS for survival analysis, but a problem is I have to enter the data 13 times if… read more Survival analysis code in SAS

Two mistakes, a full day

TweetMy webservers have been quite stable, probably 3-4 months now without rebooting. I have 2 copies of a disk on… read more Two mistakes, a full day

Getting gmirror to work

Tweethere are steps: those followed by “queen#” are the things I typed… the rest are computer responses. gmirror is a… read more Getting gmirror to work

The cyber side of cyberbee

TweetThe current hardware for running cyberbee.net, you will be surprised to find out: CPU: AMD Athlon(tm) Processor (950.04-MHz 686-class CPU)… read more The cyber side of cyberbee