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 GUHAAR - STATISTICS by shreepanch
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Posted on 02-08-06 7:09 AM     Reply [Subscribe]
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गुहार, गुहार

साझाले गरिखाने समय जति खाईदियो । साहूले कामको थुप्रो लगाईदियो । लौ, कोही साथीहरु ले केही उपाय भए बताईदिनुस ।पक्कै पनि साझामा सहयोगी र सहृदयी विद्वानहरुको कुनै कमी छैन ।

I desperately need license-free फोकटमा पाईने र बनिबनाउ algorithms for generating random numbers on statistical distributions for a Monte-Carlo simulation- most preferably in Visual Basic (or VBA). MS-Excel मै ठोक्ने बिचार छ, सम्भव भए सम्म ।
नभई नभएका distributions: Gauss-normal (of course), lognormal, beta, gamma
however, the more the better.

GNU scientific library (GSL) हो भने पर्दैन प्लीज, जम्मै pointer नै pointer रहेछ, एक थोपो पनि source code बुझ्या भे त मरिजाम ।

अर्को त्यो error function को table नै चाहिने पनि भरसक नभए हुन्थ्यो, केही सीप नलागे त्यसैले पनि काम चलाउन पर्ला ।

MATLAB ले नि नहुने, MathCAD ले नि नहुने भन्छ साहूले, साहूले ती software को कुरा बुझ्दैन, मैले साहूलाई छोड्ने बेला भयो, बनाईदिएर जान पर्ने ।

Excel कै simulation packages ले पनि गाह्रै हुने, बिचार गरिसकेको - झन घाँडो हुँदोरहेछ । मेरो function नै फेरि newton raphson लगाएर solve गर्न पर्ने non-linear equation छ के,त्यसो भएर ।

Please...
Keep rolling...
 
Posted on 02-08-06 7:16 AM     Reply [Subscribe]
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हन के भन्छ यो सिरे दाइले .......


--------------------

Baai da wey, aai ooill mel yiiiiiu aaphtar phew deyj la.

Did u get what I mean :=)
 
Posted on 02-08-06 10:00 AM     Reply [Subscribe]
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तेस्ता कुरा मैले के बुज्तेँ र। धागोलाई माथि लेइदेओ मत्रै हो।
 
Posted on 02-08-06 10:08 AM     Reply [Subscribe]
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ओह माइ गड् !!
मैले Shree-panch को कुरा एउटा बुझे त मरिजम्, कस्तो भाषा हो । .....नजने गौ को बाटो नसोधुम क्यार्, बुझेको भए त हेल्प गर्थे,सत्य नि नारन.....सरी है.
 
Posted on 02-08-06 10:20 AM     Reply [Subscribe]
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shree dai...kuro ta maile ni kehi bujhina...aba Mathmatical software nai chahine bhaye Matlab jastai jastai yeeta Maple bhanne software masanga cha...tyesle kaam chalcha ki chaldaina ..yesso google bata search gari hernuhola...tyesko size babbal thulo cha..kasari uuta pathaune ho tyo pani advise garum la.

yo kaam nalage thread mathi bhaye ni asryo ni kaso;)
 
Posted on 02-08-06 10:22 AM     Reply [Subscribe]
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थुप्रो दिन भो नझुल्केको त, आज च्वास्स पस्या त सिरे करएर उधुम भई रा रच । के भा हो कुन्नी, बुझे त मरी जाम ।
आबो हाम्लाइ यो कम के जाती तर (comuputer) भन्ने कालो अक्छेर भुइसी बरावर । क्यार्छौ त नि ।

अनी मुइले ल्याइदया पाइपाँ तमाखु हसोर्दै छौ त ? ल धेरै नखाउ के रे, खाँसी लाग्च्, अन्त खेरी फेक्सोआँ दुलो नि पर्च भन्छन । होश गरेस ।

ठट्टा गर देको - श्री पाँच को यो थ्रेड live राखुम भन्नाआ हेतु । अन्यथा नठान्नु होला । आबो ठाने नि एत्रै सीती, लेखी त दिएँ, अब भो ।
 
Posted on 02-08-06 12:51 PM     Reply [Subscribe]
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कसैले Maple मा लेखेको दियो भने Maple ले नै Fortran, Matlab,
Visual Basic जे मा भन्यो त्यसैमा परिवर्तन पनि गर्दिन्छ क्यारे, सायद। पैला जेमा भा'नि
चाहिएको कुरो पाउनु परो।
 
Posted on 02-08-06 4:28 PM     Reply [Subscribe]
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>>amazing: any time dude

>>kick, Chaoz, Sandhurst Lahure: सदाशयताको लागि धेरै धेरै धन्यबाद

>>senseकत्रो छ र त्यो installer? फेरि सिक्न पर्ने होला, कत्तिको सजिलो छ नि interface? हाम्रो एउटा डोको त छ छनलाई तेस्ता कुराहरु खाँद्ने । तैपनि अझै कोशिस गरौँ, कोही निस्की हाल्नु हुन्छ कि मोन्टे-कार्लो को ज्ञाता । नभए तपाईँलाई ईमेल गर्छु पछि खाङ्ग्रे डोको को ठेगाना सहित । offer को लागि धेरै धेरै धन्यबाद

bhaute>>त्यसबाट पनि एउटा DLL बनाएर पठाउँछ जस्तो लाग्छ के, अनि त्यसलाई बोलाम्न पर्च । जुन मैले भनेको functions, मेरो equation नै आँडे छ के, अझ भन्न पर्दा,

significant probabilites are : p(x1), p(x2), p(x3) and p(y3)

for deterministic vals,
y1 = f1(x) .....(1)
y2 = f2(x) .....(2)

for non-linear eqn #1>> y1 comes from simulation (randomly generated भनौँ न) solve by newton-raphson for the value of x : the best value is, say x1. the distributin of x1 is p(x1).

for non-linear eqn #>> y2 comes from simulation (but with a different distro, suppose if the earlier is normal, this one might be lognormal). solve it for value of x2. the distributin of x2 is p(x2).

then, my final eqn is,
y3 = f3(x1,x2,x3) - which does not require solving tho: straight computation. but again, x3 comes from simulation- likely with a different shape p(x3)

p(y3) निकाल्दिए पछि काम तमाम ।

त्यसो भएर code नै आफैले लेख्न पाए सबभन्दा कम झन्झटिया हुन्थ्यो के, अरु mathematical software ले गर्दा त्यो बिचको solve गर्ने बेलामा हैरान के ।


फेरि पनि गुहार, गुहार

Keep rolling...
 
Posted on 02-08-06 10:32 PM     Reply [Subscribe]
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अझै पनि कतैबाट सिदा पाईन्छ कि, अलक अलक बम भोले

Keep rolling...
 
Posted on 02-09-06 4:37 AM     Reply [Subscribe]
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hi5,

That seems interesting. Vyalentine deen samma fursad chaina- tesaile ahile lai- if you've already not googled, i found some vba snippets at
http://www.vbnumericalmethods.com/vbnumericalmethods/download.asp?codeType=m&cTitle=Normal%20Inverse%20Gaussian%20Random%20Number%20Generator

I used @risk (TM) software (Excel application software) to generate all sorts of distribution for my use but it was not a freeware, and more than that it needed a dongle key.

Lou, joyNepal.
 
Posted on 02-09-06 5:19 AM     Reply [Subscribe]
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जय होस राजेश हमाल को,

त्यँहा त झण्डै झण्डै मलाई अहिले तुरुन्तै चाहिने त जति सवै नै रहेछ, त्यो साईटको होमपेजमा गएसि भेट्टाएँ टन्नै जो । मेरो त ज्यानै जोगियो । धेरै धेरै धन्यबाद है ।

पाए सम्म त अरु खाले distributions को पनि जगेर्ना गर्न पाए हुने थियो के। माथिको मेरो हिसाबमा छ नि, खास distribution फिट गर्न नै पनि अलमल अलमल भई राखेको छ के । ल, पुरै कुरा नि सविस्तार बर्णन गर्छु है त (तत्काललाई काम बनिहाल्यो क्यारे, अब फेरि फुर्सद भयो - sajha rocks !!!)।

कुरो के भने 10 yrs जतिको झन्डै साठी लाख देखि पाँच करोड वटा जति observed data points छन् हेरि हेरि - input variables को पनि, अनि final result को पनि । अहिलेसम्म data लिँदै र assimilate गर्दैमा मा ठिक्क । माथि देख्नु भयो होला, एउटा process को लागि अनि हामीले differential equation को रुपमा फिट हुन्छ कि, कुनै relation/formula निस्की हाल्छ कि भनेर जाँच्न खोजेको । intermediate relations पनि empirical खाले के, तेही भएर newton-raphson ले गोद्न पर्ने, अनि differential eqn लाई solve गर्न पर्ने ।

अनि तेत्रो data points त एउटै चोटि त कसरी process गर्ने हो र, धेरै data गर्दैमा फेरि को ठूलो भाको छ र ? अब खास true observation बाट आएको data त कहिले ideal distribution सँग मिलेको थियो र? अनि statistics लिएर एक-एक वटा distributions मा हाल्दै हेर्ने, मिले ठूलो मान्छे भईयो, नमिले पनि ठूलै मान्छे भईयो । तेस्तो तेस्तो के ;) जे होस्, अब बाटो सोझियो, फेरि पनि धन्यबाद छ है ।

लौ हजुर, भेलीथाने दिन पछि पनि केही भेट्टाउनु भए केही जोगाड गर्नु भए फेरि पनि खबर पाउँ है प्लीज ।

बरु ईमेलमा सम्पर्क गर्न मिल्नी भए मिल्छ भन्नुस क्यारे यहाँ, मैले ईमेल पठाउँछु ।तपाईँसँग पछि पनि बेला-बेलामा बुद्धि लिन पर्ने भयो ।

Keep rolling...
 
Posted on 02-23-06 5:20 AM     Reply [Subscribe]
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Posted on 02-23-06 12:13 PM     Reply [Subscribe]
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shree5 Ji,

What is your major ? I don't think you need this for your job.
It can also be done in C#.

Enjoy
 
Posted on 02-23-06 12:21 PM     Reply [Subscribe]
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-˘FL % ;µsf®

Getting some help ????
 
Posted on 02-23-06 5:13 PM     Reply [Subscribe]
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Is this mathematical finance shree5 is talking about? Or is it statistics? And is this a problem you guys are facing in university Shree5 or is this a job????
Just curious.
 
Posted on 02-23-06 7:08 PM     Reply [Subscribe]
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rajesh hamal jee,

i am at it now. hope it will go through well. thanks again for your help. i have also sent an email through sajha.

Hussain_Khan jee,
my major is in civil engineering and it is related to surrogate-type modeling for the effect of ice regime on arctic structures based on >10 yrs of observed data. fortunately, looks like the suggestion by rajesh hamal is working well. earlier i had tried to use the GNU math library but i never understood the C-pointers- anyway, its going good for now.

mickey mouse jee,
thanks for the goodwill, looks like i got the help.

timetraveller jee,
it is in the univ for the project of my employer+supervisor

thanks everyone again,

Keep rolling...
 
Posted on 02-23-06 7:46 PM     Reply [Subscribe]
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Shree5jyu, Sabai kura Angrezima lekhe ta padhnulai time lagdaina thiyo ni. Baafre maile te padhnu nasakera adhamai chod de. Ankhalai matrai extra kaam.:) J/K
 


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