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Functions
- #arg
- #@
- #c
- $(d)dql...
- $(db)sql;…
- ${macroExp}
- =expression
- >statement
- [a:b]
- @
- @x:…
- ~( i )
- A()
- A.( x,... )
- [a1,...an]
- abs()
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- age()
- align()
- ali_open()
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- C
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- dynadb.close()
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- E()
- E()
- elapse()
- elasticnet()
- end s
- enum()
- env()
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- es_close()
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- exec()
- execute()
- exists()
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- eye()
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- Fdb()
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- fetch()
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- file()
- filename()
- fill()
- fillcons()
- fillfun()
- fillmthd()
- find()
- Fintrate()
- finv()
- Firr()
- fisher_p()
- fjoin()
- float()
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- Fmirr()
- fname()
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- Fnper()
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- for
- fork
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- func()
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- get()
- gcd()
- gcs_bucket()
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- gcs_copy()
- gcs_file()
- gcs_list()
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- goto C
- group()
- groupc()
- groupi()
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- groups()
- groupx()
- hash()
- hbase_close()
- hbase_cmp()
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- I()
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- m()
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- memory()
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- mongo_open()
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- month()
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- n.f(x)
- name()
- new()
- news()
- next{a}
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- norm()
- norminv()
- not()
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- null
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- numnorm()
- nvl()
- o()
- olap_close()
- olap_open()
- olap_query()
- ones()
- open()
- or()
- oss_bucket()
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- output()
- p()
- pad()
- parse()
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- pca()
- pchipmthd()
- pdate()
- pearson()
- penum()
- periods()
- permut()
- pfind()
- pi()
- pivot()
- pjoin()
- pls()
- pmax()
- pmin()
- polyfit()
- pos()
- power()
- prior()
- proc()
- product()
- proportion()
- property()
- pseg()
- pselect()
- pseudo()
- psort()
- ptop()
- push()
- Qconnect()
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- Qenv()
- Qfile()
- Qload()
- Qlock()
- Qmove()
- query()
- r.(x,...)
- r.F
- r.F=x
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- rand()
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- range()
- rank()
- ranki()
- rankm()
- ranks()
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- record()
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- rename()
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- reportlite_open()
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- reset()
- result
- return xi
- rgb()
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- run()
- rvs()
- s3_bucket()
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- s3_file()
- s3_list()
- s3_open()
- sap_client()
- sap_close()
- sap_cursor()
- sap_execute()
- sap_getparam()
- sap_table()
- savepoint()
- sbs()
- se()
- second()
- segp()
- select()
- seq()
- sert()
- setenum()
- sf_close()
- sf_open()
- sf_query()
- sf_wsdlclose()
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- sg()
- shift()
- sign()
- sin()
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- size()
- skew()
- skip()
- sleep()
- smooth()
- sort()
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- spark_open()
- spark_close()
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- spark_read()
- spearman()
- splinemthd()
- split()
- splserver()
- sqlparse()
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- substr()
- stax_close()
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- stax_cursor()
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- sqrt()
- step()
- string()
- structure
- sum()
- svm()
- swap()
- switch()
- syncfile(hs,p)
- system()
- T()
- tarcorskew()
- tan()
- tanh()
- time()
- tinv()
- to()
- top()
- total()
- transpose()
- trim()
- true
- try
- ttest_p()
- typeof(x)
- union()
- update()
- upper()
- urlencode()
- uuid()
- v()
- var()
- var(V)
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- was_bucket()
- was_close()
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- web_crawl()
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- words()
- workday()
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- write()
- ws_call()
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- xjoin()
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- xlscell()
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- xml()
- xor()
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- year()
- ym2_close()
- ym2_env()
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- ym2_model()
- ym2_pcfload()
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- ym2_predict()
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- zeros()
- zip()
- zip_add()
- zip_close()
- zip_compress()
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- zip_encrypt()
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- zip_open()
- Intersection of sequences
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- Chart Elements
polyfit()
Description:
Calculate the coefficient between two vectors in polynomial fitting.
Syntax:
polyfit(X,Y,n)
Note:
The function calculates the coefficient between vector X and vector Y, which are of same dimension, in a polynomial fitting with the degree of polynomial as n, and returns a sequence of n+1 coefficients ordered from low order to high order.
Parameter:
|
X/Y |
Vectors of same dimension |
|
n |
A non-zero positive integer |
Return value:
Sequence
Example:
|
|
A |
|
|
1 |
[3,5,2,8] |
|
|
2 |
[4,6,2,4] |
|
|
3 |
=polyfit(A1,A2,2) |
Or can be represented as -0.333333x2+3.666667x-4. |
