# AnalyticBridge

A Data Science Central Community

Blaise F Egan
• Male
• Chelmsford, Essex
• United Kingdom

# Blaise F Egan's Page

## Latest Activity

"I would recommend MariaDB, the replacement for MySQL. There are lots of good books on SQL and MySQL that you can learn from. The software is free."
Oct 25, 2013
"The two pictures would only be comparable if they were on the same scale. They aren't. The Moon's diameter is 3470 km. At a distance of 1.6 billion km it subtends an angle of 3470/(1.6 x 10^9) radians. That's about 2 microradians or…"
Aug 5, 2013
">Trying to understand why Earth is the brightest object in this image.   Because it is accurately pointed at Earth and other objects are out of the field of view.   >Also how can you see our moon from Saturn, but none of Saturn…"
Aug 5, 2013
"The Earth-Mood distance in about 384 400 km. 1 billion miles is about 1.6 billion km. Viewed at its maximum the Earth-Moon distance subtends an angle of 384 400 / 1000 000 000 = 3.84 x 10^-4 radians or about 79 seconds of arc. This is easily…"
Aug 4, 2013
"If undecided go with LR as it has better diagnostics (analysis of deviance). If your predictors are most numeric functions that your Exploratory Data Analysis show are smooth functions then you would want to go with LR. LR is good with smooth…"
Jul 26, 2013
"I've not yet encountered stray tabs in character fields, but I agree it's possible. As you say, there's no standard. I did encounter a frustrating 18 GB file recently that was tab-separated as I requested but two adjacent fields had…"
Jul 8, 2013
"I've had a comma in a data field many times. I now prefer to use tab-separated instead of CSV for exactly that reason."
Jun 25, 2013
Jun 24, 2013
"R is really good at this. You can use the merge() function http://127.0.0.1:20335/library/base/html/merge.html   or for real speed you can use the data.table…"
Jun 24, 2013

## Profile Information

Field of Expertise:
Business Analytics, Predictive Modeling, Data Mining, Operations Research, Statistical Programming, Statistical Consulting
Years of Experience in Analytical Role:
30+
Professional Status:
Technical
Interests:
Networking
British Telecommunications PLC
Industry:
Telecommunications
How did you find out about AnalyticBridge?

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