Percentile Symbol - does it exist or not?

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Is there a standard symbol for percentile in mathematics, much like % is used for percentage? I have trying to get the right answer but only getting conflicting answers and logic.




notation percentile




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  • 3




    It is generally written as $P_i$ where $i$ is the percentile.
    – Neil
    Feb 29 '16 at 15:24







  • 2




    Perhaps the point of confusion would be clearer if you showed what you had found, even the things that don't make sense to you--in fact, it may be especially important to know exactly what things don't make sense to you.
    – David K
    Feb 29 '16 at 15:28






  • 1




    @DavidK This is a notation question. The asker is looking to find the one symbol used for denoting percentiles, should a unique symbol exist for it. Finding more than one symbol seems to be the part that doesn't make sense to them, being that there's apparently more than one unique symbol. Them summarizing their previous findings shouldn't affect the answer to this question.
    – Axoren
    Feb 29 '16 at 15:51






  • 2




    @Axoren The question says OP already found answers, but they were unsatisfactory. Why attempt an answer when it seems likely that the answer will duplicate something OP saw elsewhere and that repeating that answer will not help?
    – David K
    Feb 29 '16 at 18:31






  • 2




    @Axoren An answer like the one you described would be a low-quality answer to any question--and it is just as likely to be made to the question as originally asked. A good answer takes more effort. I'm suggesting that if someone wants people to put that much effort into answers, they should be willing to put effort into questions. You and the OP are free to ignore this opinion--it's only one person's opinion, after all--but if you like, you can ask in Meta and see if there is a consensus there about whether the question would be better or worse if previous findings were included.
    – David K
    Feb 29 '16 at 18:54















up vote
5
down vote

favorite












Is there a standard symbol for percentile in mathematics, much like % is used for percentage? I have trying to get the right answer but only getting conflicting answers and logic.




notation percentile




share|cite|improve this question


















  • 3




    It is generally written as $P_i$ where $i$ is the percentile.
    – Neil
    Feb 29 '16 at 15:24







  • 2




    Perhaps the point of confusion would be clearer if you showed what you had found, even the things that don't make sense to you--in fact, it may be especially important to know exactly what things don't make sense to you.
    – David K
    Feb 29 '16 at 15:28






  • 1




    @DavidK This is a notation question. The asker is looking to find the one symbol used for denoting percentiles, should a unique symbol exist for it. Finding more than one symbol seems to be the part that doesn't make sense to them, being that there's apparently more than one unique symbol. Them summarizing their previous findings shouldn't affect the answer to this question.
    – Axoren
    Feb 29 '16 at 15:51






  • 2




    @Axoren The question says OP already found answers, but they were unsatisfactory. Why attempt an answer when it seems likely that the answer will duplicate something OP saw elsewhere and that repeating that answer will not help?
    – David K
    Feb 29 '16 at 18:31






  • 2




    @Axoren An answer like the one you described would be a low-quality answer to any question--and it is just as likely to be made to the question as originally asked. A good answer takes more effort. I'm suggesting that if someone wants people to put that much effort into answers, they should be willing to put effort into questions. You and the OP are free to ignore this opinion--it's only one person's opinion, after all--but if you like, you can ask in Meta and see if there is a consensus there about whether the question would be better or worse if previous findings were included.
    – David K
    Feb 29 '16 at 18:54













up vote
5
down vote

favorite









up vote
5
down vote

favorite











Is there a standard symbol for percentile in mathematics, much like % is used for percentage? I have trying to get the right answer but only getting conflicting answers and logic.




notation percentile




share|cite|improve this question














Is there a standard symbol for percentile in mathematics, much like % is used for percentage? I have trying to get the right answer but only getting conflicting answers and logic.





notation percentile





share|cite|improve this question













share|cite|improve this question




share|cite|improve this question








edited May 16 '17 at 20:06









Brian White

1034




1034










asked Feb 29 '16 at 15:18









Karthikeyan

2612




2612







  • 3




    It is generally written as $P_i$ where $i$ is the percentile.
    – Neil
    Feb 29 '16 at 15:24







  • 2




    Perhaps the point of confusion would be clearer if you showed what you had found, even the things that don't make sense to you--in fact, it may be especially important to know exactly what things don't make sense to you.
    – David K
    Feb 29 '16 at 15:28






  • 1




    @DavidK This is a notation question. The asker is looking to find the one symbol used for denoting percentiles, should a unique symbol exist for it. Finding more than one symbol seems to be the part that doesn't make sense to them, being that there's apparently more than one unique symbol. Them summarizing their previous findings shouldn't affect the answer to this question.
    – Axoren
    Feb 29 '16 at 15:51






  • 2




    @Axoren The question says OP already found answers, but they were unsatisfactory. Why attempt an answer when it seems likely that the answer will duplicate something OP saw elsewhere and that repeating that answer will not help?
    – David K
    Feb 29 '16 at 18:31






  • 2




    @Axoren An answer like the one you described would be a low-quality answer to any question--and it is just as likely to be made to the question as originally asked. A good answer takes more effort. I'm suggesting that if someone wants people to put that much effort into answers, they should be willing to put effort into questions. You and the OP are free to ignore this opinion--it's only one person's opinion, after all--but if you like, you can ask in Meta and see if there is a consensus there about whether the question would be better or worse if previous findings were included.
    – David K
    Feb 29 '16 at 18:54













  • 3




    It is generally written as $P_i$ where $i$ is the percentile.
    – Neil
    Feb 29 '16 at 15:24







  • 2




    Perhaps the point of confusion would be clearer if you showed what you had found, even the things that don't make sense to you--in fact, it may be especially important to know exactly what things don't make sense to you.
    – David K
    Feb 29 '16 at 15:28






  • 1




    @DavidK This is a notation question. The asker is looking to find the one symbol used for denoting percentiles, should a unique symbol exist for it. Finding more than one symbol seems to be the part that doesn't make sense to them, being that there's apparently more than one unique symbol. Them summarizing their previous findings shouldn't affect the answer to this question.
    – Axoren
    Feb 29 '16 at 15:51






  • 2




    @Axoren The question says OP already found answers, but they were unsatisfactory. Why attempt an answer when it seems likely that the answer will duplicate something OP saw elsewhere and that repeating that answer will not help?
    – David K
    Feb 29 '16 at 18:31






  • 2




    @Axoren An answer like the one you described would be a low-quality answer to any question--and it is just as likely to be made to the question as originally asked. A good answer takes more effort. I'm suggesting that if someone wants people to put that much effort into answers, they should be willing to put effort into questions. You and the OP are free to ignore this opinion--it's only one person's opinion, after all--but if you like, you can ask in Meta and see if there is a consensus there about whether the question would be better or worse if previous findings were included.
    – David K
    Feb 29 '16 at 18:54








3




3




It is generally written as $P_i$ where $i$ is the percentile.
– Neil
Feb 29 '16 at 15:24





It is generally written as $P_i$ where $i$ is the percentile.
– Neil
Feb 29 '16 at 15:24





2




2




Perhaps the point of confusion would be clearer if you showed what you had found, even the things that don't make sense to you--in fact, it may be especially important to know exactly what things don't make sense to you.
– David K
Feb 29 '16 at 15:28




Perhaps the point of confusion would be clearer if you showed what you had found, even the things that don't make sense to you--in fact, it may be especially important to know exactly what things don't make sense to you.
– David K
Feb 29 '16 at 15:28




1




1




@DavidK This is a notation question. The asker is looking to find the one symbol used for denoting percentiles, should a unique symbol exist for it. Finding more than one symbol seems to be the part that doesn't make sense to them, being that there's apparently more than one unique symbol. Them summarizing their previous findings shouldn't affect the answer to this question.
– Axoren
Feb 29 '16 at 15:51




@DavidK This is a notation question. The asker is looking to find the one symbol used for denoting percentiles, should a unique symbol exist for it. Finding more than one symbol seems to be the part that doesn't make sense to them, being that there's apparently more than one unique symbol. Them summarizing their previous findings shouldn't affect the answer to this question.
– Axoren
Feb 29 '16 at 15:51




2




2




@Axoren The question says OP already found answers, but they were unsatisfactory. Why attempt an answer when it seems likely that the answer will duplicate something OP saw elsewhere and that repeating that answer will not help?
– David K
Feb 29 '16 at 18:31




@Axoren The question says OP already found answers, but they were unsatisfactory. Why attempt an answer when it seems likely that the answer will duplicate something OP saw elsewhere and that repeating that answer will not help?
– David K
Feb 29 '16 at 18:31




2




2




@Axoren An answer like the one you described would be a low-quality answer to any question--and it is just as likely to be made to the question as originally asked. A good answer takes more effort. I'm suggesting that if someone wants people to put that much effort into answers, they should be willing to put effort into questions. You and the OP are free to ignore this opinion--it's only one person's opinion, after all--but if you like, you can ask in Meta and see if there is a consensus there about whether the question would be better or worse if previous findings were included.
– David K
Feb 29 '16 at 18:54





@Axoren An answer like the one you described would be a low-quality answer to any question--and it is just as likely to be made to the question as originally asked. A good answer takes more effort. I'm suggesting that if someone wants people to put that much effort into answers, they should be willing to put effort into questions. You and the OP are free to ignore this opinion--it's only one person's opinion, after all--but if you like, you can ask in Meta and see if there is a consensus there about whether the question would be better or worse if previous findings were included.
– David K
Feb 29 '16 at 18:54











1 Answer
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As Neil mentions in his comment $P_i$ is a common notation to denote the $i$-th percentile.



The Wikipedia page on Percentile doesn't actually mention the notation as far as I can see but denotes quartiles as $Q_1$, $Q_2$, and $Q_3$ several times and from this it's logical that percentiles would be denoted by $P_i$ (and likewise other quantiles with their respective character in the same way).



A real world example of this notation (even if it's not subscript) is how you request percentiles in the Amazon CloudWatch API which follows the pattern p(d1,2(.d0,2)?|100) - or p5 for the 5th percentile, p70 for the 70th percentile, p50.36 for the 50.36th percentile, and p100 for the maximum value.






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  • If I am right, you write $P_37%$ and the like.
    – Yves Daoust
    Aug 29 at 8:08











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1 Answer
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1






active

oldest

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active

oldest

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oldest

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up vote
0
down vote













As Neil mentions in his comment $P_i$ is a common notation to denote the $i$-th percentile.



The Wikipedia page on Percentile doesn't actually mention the notation as far as I can see but denotes quartiles as $Q_1$, $Q_2$, and $Q_3$ several times and from this it's logical that percentiles would be denoted by $P_i$ (and likewise other quantiles with their respective character in the same way).



A real world example of this notation (even if it's not subscript) is how you request percentiles in the Amazon CloudWatch API which follows the pattern p(d1,2(.d0,2)?|100) - or p5 for the 5th percentile, p70 for the 70th percentile, p50.36 for the 50.36th percentile, and p100 for the maximum value.






share|cite|improve this answer




















  • If I am right, you write $P_37%$ and the like.
    – Yves Daoust
    Aug 29 at 8:08















up vote
0
down vote













As Neil mentions in his comment $P_i$ is a common notation to denote the $i$-th percentile.



The Wikipedia page on Percentile doesn't actually mention the notation as far as I can see but denotes quartiles as $Q_1$, $Q_2$, and $Q_3$ several times and from this it's logical that percentiles would be denoted by $P_i$ (and likewise other quantiles with their respective character in the same way).



A real world example of this notation (even if it's not subscript) is how you request percentiles in the Amazon CloudWatch API which follows the pattern p(d1,2(.d0,2)?|100) - or p5 for the 5th percentile, p70 for the 70th percentile, p50.36 for the 50.36th percentile, and p100 for the maximum value.






share|cite|improve this answer




















  • If I am right, you write $P_37%$ and the like.
    – Yves Daoust
    Aug 29 at 8:08













up vote
0
down vote










up vote
0
down vote









As Neil mentions in his comment $P_i$ is a common notation to denote the $i$-th percentile.



The Wikipedia page on Percentile doesn't actually mention the notation as far as I can see but denotes quartiles as $Q_1$, $Q_2$, and $Q_3$ several times and from this it's logical that percentiles would be denoted by $P_i$ (and likewise other quantiles with their respective character in the same way).



A real world example of this notation (even if it's not subscript) is how you request percentiles in the Amazon CloudWatch API which follows the pattern p(d1,2(.d0,2)?|100) - or p5 for the 5th percentile, p70 for the 70th percentile, p50.36 for the 50.36th percentile, and p100 for the maximum value.






share|cite|improve this answer












As Neil mentions in his comment $P_i$ is a common notation to denote the $i$-th percentile.



The Wikipedia page on Percentile doesn't actually mention the notation as far as I can see but denotes quartiles as $Q_1$, $Q_2$, and $Q_3$ several times and from this it's logical that percentiles would be denoted by $P_i$ (and likewise other quantiles with their respective character in the same way).



A real world example of this notation (even if it's not subscript) is how you request percentiles in the Amazon CloudWatch API which follows the pattern p(d1,2(.d0,2)?|100) - or p5 for the 5th percentile, p70 for the 70th percentile, p50.36 for the 50.36th percentile, and p100 for the maximum value.







share|cite|improve this answer












share|cite|improve this answer



share|cite|improve this answer










answered Oct 11 '17 at 7:11









Raniz

1012




1012











  • If I am right, you write $P_37%$ and the like.
    – Yves Daoust
    Aug 29 at 8:08

















  • If I am right, you write $P_37%$ and the like.
    – Yves Daoust
    Aug 29 at 8:08
















If I am right, you write $P_37%$ and the like.
– Yves Daoust
Aug 29 at 8:08





If I am right, you write $P_37%$ and the like.
– Yves Daoust
Aug 29 at 8:08


















 

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