The fact is that I failed to set specific criteria for what would make an attribute count as an essential attribute. That means I'll have to revisit my initial posts about the positions and my initial posts about the players in the Lota Schwager squad. None of this, however, will happen until I have collected data on all the positions. This post will define, as clearly as possible, the criteria defining the analysis.
The Player
Any attribute with a value of 16 or more will count as a strong attribute in the player. Most would probably agree that 15 is a pretty decent ranking for an attribute. To ensure that we get only the best attributes I decided to make 16 the treshold used in this analysis.
Players valued at more than £1 million or the top 100 will be analysed. If the value of the 100th player is tied among multiple players all players of that value will be included. That means there can be more than 100 players in the analysis. However, as seen in my Sweeper research teh number can also be lower. If the number of players analyzed is lower than 100 I will define the data as insecure. In truth 100 players probably isn't enough for a proper analysis, but time constraints have caused me to set that limit.
The Data Set
If an attribute has a rating of 16 or higher in more than 30 percent of the players I consider than attribute to be significant. The reasoning is that 16 is a pretty harsh requirement and more than 30 players in a set of 100 is a pretty significant group.
Evaluating The Player
The purpose of this is te enable us to make the right choices in the transfer market. So we want to rank the players according the attributes we find significant. However, and attribute with a rank of 16 or higher with 60 percent of the players should be considered twice as important as an attribute that only has a ranking of 16 or higher in 30 percent of the players. To that end we calculate an attribute facotr for each player. Here's an example.
- Heading - 35%
- Anticipation - 40%
- Composure - 35%
- Off The Ball - 50%
- Jumping - 60%
- Strength - 55%
This is not a real example, but could feasibly be a target man type analysis. As you can see each attribute is assigned a percentage value. This percentage value indicates the ratio of players where this attribute was significant. In this example the total percentage value is 275%. This number is important in calculating each attributes relative significance. We do this using this simple formula:
Attribute Percentage * 100/275
From that we get these values.
- Heading - 13
- Anticipation - 15
- Composure - 13
- Off The Ball - 18
- Jumping - 22
- Strength - 20
The sum of those values is: 101.
So, finally we are ready to calculate a players base ability according to this made up analysis. The player in question R. Andom a target man with unknown potential. His stats are Heading 12, Anticipation 15, Composure 13, Off The Ball 14, Jumping 20, Strength 17. His base skill level, according to my analysis, is:
((12*13)+(15*15)+(13*13)+(14*18)+(20*22)+(17*20))/101 = 15.66
So R. Andom has a base skill value of 15.66 when performing in this made up position. That's actually not a bad rating. Although his headers aren't always accurate he seems able to find space by using his strength and jumping higher than anybody else.
I'd love to hear your thoughts.
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