## Saturday, 28 November 2009

### Finding Leaks with Colour and Bars

In preparation for a set of new "Leak Detector" screens in Poker Copilot, I'm reading Stephen Few's "Now You See It: Simple Visualization Techniques for Quantitative Analysis". The subtitle is tedious, better would be "Make Awesome Charts."

I'm getting a lot of value from Few's book on using colour and simple charting techniques to make analysis easier. Here's what I started with:

The info is there, but you have to read and compare all numbers carefully to spot the patterns.

Step 2: I added colour to show positive and negative numbers:

Now we can immediately see that I've been losing money with 44, and winning with all other pocket pairs. But some info is still hiding, requiring careful manual analysis.

Step 3: Show the magnitude with a coloured bar:

Ho ho! Now the patterns are clear. I'm doing something wrong with TT and 99, which should be good earners: my winnings are positive but only just. Aces, Kings, Queens, Jacks are all paying out well, so I'm happy with the way I play them.

iLVargoso said...

Steve, how are you!

I dont post here about a long time ago...

But, i see u working hard on new goodies of PokerCopilot, but i really want to remind u the necesity of new STATS, please make this ur priority...

Regards,

Juan Vargas

Bold Bet said...

Steve,

Is this 6max or FR?

I like it. Just a comment on the last picture, the bar graph colors are a bit light, so maybe either increase the darkness of the bar graphs and/or also make the negative value still red as well for the numbers on the right column.

Anonymous said...

Are you able to filter all the hands you played 44 to review them? I have been unable to myself..

Anonymous said...

Agree with the above poster. In theory, you're supposed to be a winner with all pairs. But if you get cold decked a few times with a particular pair, it could skew the stats the other way.

Having the ability to look up each time you played a particular hand would allow to you review how you played the hand in that situation.

Steve McLeod said...

@Bold Bet,

I think I did this screenshot with FR? Why do you ask? Would you expect a big difference with 6-max? I'm curious to know because it might shape how I implement this feature.

@Anonymous,
"Are you able to filter all the hands you played 44 to review them? I have been unable to myself."

This is high on the list of things to do.

Bold Bet said...

Steve,
I assume the numbers will be different on 6max because it's higher variance than FR.