Can anyone please help me about any of the following questions:
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1. How can i find "factorial" of any number in R? I tried
> prod(170:1) # to find factorial of 170 or 170!
Is it the only procedure - or R has any better process / operational character to calculate factorial? Also, is it possible to calculate factorial of 500? Or is there any statistical table available for this?
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2. Is there any direct procedure / package in R to find "permutation / combination"?
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3. Can i find Probability Density of "Hypergeometric Disribution" in R, given all values of the parameter? I can not find any table of Hypergeometric Disribution (if such tables are available on the internet, please let me know).
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4. Is there any way i can perform "Quality control" calculations (like p-chart / np-chart / c-chart / u-chart / OC curves / AOQ / AOQL / ATI / ASN / plan design) in R? I guess such procedures are available in SAS / Statistica or other statistical softwares. If there are such operations in R, please refer me to the appropriate documentations.
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5. Particularly, if we have lots of size N = 50000 and the receiving inspection procedure used in single-sampling plan with n = 50 and c = 1; then i need to draw the type-A and type-B operating characteristic curve for the plan. Can i do it on R?
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Any comment / suggestion / idea / web-link / replies will be gladly accepted. Thanks for your time.
_______________________ Mohammad Ehsanul Karim <[EMAIL PROTECTED]> Institute of Statistical Research and Training University of Dhaka, Dhaka- 1000, Bangladesh
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