user9423: I was looking at the list of uscf players (as anyone can through WinTD) and two columns in a dataset, downloadable through the program, are titled RSUPP_NUM, R_PLR_TYP.
Does anyone have any idea what these columns mean? I see that these are short for Rating Supplement Number and Rating Player Type, but am unsure of why this is there.
Here's a screenshot of what the data looks like.

Here is all of the possible values in both of the columns.
For RSUPP_NUM:

For R_PLR_TYPE:

Does "E" mean experienced, and "P" mean provisional?
Does the 1-12 value mean it correspond to months? Does it mean the rating a person has corresponding to that month's value? 

user291: As can be verified by looking at player information on http://uschess.org, RSUPP_YR and RSUPP_NUM are the year and month of the latest supplement with a rating for that player (which is in the R_LPB_RAT columns). If you looked up a sample player who has a P in R_PLR_TYP, it wouldn't be hard to confirm whether that means that the rating is provisional.

9423: <p>I was looking at the list of uscf players (as anyone can through WinTD) and two columns in a dataset, downloadable through the program, are titled RSUPP_NUM, R_PLR_TYP.</p>

<p>Does anyone have any idea what these columns mean? I see that these are short for Rating Supplement Number and Rating Player Type, but am unsure of why this is there.</p>

<p>Here's a screenshot of what the data looks like.</p>

<p><a href="https://i.stack.imgur.com/1d4ow.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/1d4ow.jpg" alt="USCF chess"></a></p>

<p>Here is all of the possible values in both of the columns.</p>

<p>For RSUPP_NUM:</p>

<p><a href="https://i.stack.imgur.com/hT7qT.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/hT7qT.jpg" alt="enter image description here"></a></p>

<p>For R_PLR_TYPE:</p>

<p><a href="https://i.stack.imgur.com/TD1R8.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/TD1R8.jpg" alt="enter image description here"></a></p>

<p>Does "E" mean experienced, and "P" mean provisional?</p>

<p>Does the 1-12 value mean it correspond to months? Does it mean the rating a person has corresponding to that month's value? </p>
 291: <p>As can be verified by looking at player information on <a href="http://uschess.org" rel="nofollow">http://uschess.org</a>, RSUPP_YR and RSUPP_NUM are the year and month of the latest supplement with a rating for that player (which is in the R_LPB_RAT columns). If you looked up a sample player who has a P in R_PLR_TYP, it wouldn't be hard to confirm whether that means that the rating is provisional.</p>
