[Spamassassin Wiki] Update of "RoundingIssues" by TedHeise

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The following page has been changed by TedHeise:
http://wiki.apache.org/spamassassin/RoundingIssues

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  This rounding down of the spam hits (to the nearest 0.1) and of the stars (to the nearest integer) will hopefully be a more intuitive result.
  
+ 
+ 
+ == Why do the points of individual rules in the content analysis not add up to the same point total? ==
+ 
+ The actual scores of the rules have three digits after the decimal, but in the Content analysis report they are rounded off to the nearest tenth.
+ 
+ The points shown for individual rules in the following example total 8.5, not the 8.6 indicated.
+ 
+ {{{
+ Content analysis details:   (8.6 points, 5.0 required)
+ 
+  pts rule name              description
+ ---- ---------------------- --------------------------------------------------
+  1.7 MSGID_FROM_MTA_ID      Message-Id for external message added locally
+  0.0 HTML_MESSAGE           BODY: HTML included in message
+  5.0 BAYES_99               BODY: Bayesian spam probability is 99 to 100%
+                             [score: 0.9985]
+  0.2 MIME_HTML_ONLY         BODY: Message only has text/html MIME parts
+  1.0 HTML_IMAGE_ONLY_16     BODY: HTML: images with 1200-1600 bytes of words
+  0.6 FORGED_OUTLOOK_HTML    Outlook can't send HTML message only
+ }}}
+ 
+ The actual scores for each of these rules are shown below.  They total 8.577, which clearly rounds to 8.6
+ 
+ {{{
+ 1.723  MSGID_FROM_MTA_ID
+ 0.001  HTML_MESSAGE
+ 5.000  BAYES_99
+ 0.177  MIME_HTML_ONLY
+ 1.047  HTML_IMAGE_ONLY_16
+ 0.629  FORGED_OUTLOOK_HTML    
+ }}}
+