Oleksii S. Profile

LÖYDÄ

5,0

(94 arvostelua)

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$45 USD / tunti

koryukivka distr.,

ukraine

$45 USD / tunti

Aika on tällä hetkellä 10:24 ip. täällä

Liittynyt joulukuuta 21, 2015

8 Recommendations

Oleksii S.

@proffesor1

5,0

(94 arvostelua)

7,9

98%

$45 USD / tunti

koryukivka distr.,

ukraine

$45 USD / tunti

100 %

Suoritetut työt

97 %

Budjetin mukaisesti

98 %

Aikataulussa

20 %

Uudelleenpalkkausaste

Independent researcher, statistician, data analyst

I have more than 20 years experience in data analysis in the different areas (behavior sciences, economic/finance, medicine and other). I have strong statistical, economical and and psychology background. I work with SPSS, Eviews, Mplus, Excel, Stata, R, and other statistical programs. Since 2000, I have completed many projects related to analysis of different data, solving of the statistical problems, survey analysis, stock data analysis, econometric modelling and so on. I support students, post-graduated/doctoral students, independent researchers/scholars, investors, businessmen, consulting firms and so on. I have an experience in market analysis, business analysis, SEM modelling, survey analysis, CFA (MG CFA), regression, factor analysis, working with time-series, survival analysis data manipulation and presentation. I guarantee 100% and quality execution of your project. I can work 40 hours/week.

Katso kaikki Statisticians paikassa Ukraine

Ota yhteyttä käyttäjään Oleksii S. työhösi liittyen

Kirjaudu sisään keskustellaksesi yksityiskohdista chatissa.

Portfolio

Time series analysis, regression, stationary testing ARIMA, ARCH, GARCH models and other financial analysis. EViews or R can be used for these purposes.

Financial data analysis using EViews

Confirmatory Factor Analysis (CFA) + Structural Equation Modelling (SEM), Multigroup CFA using Amos, Mplus, R or Stata.
Multigroup analysis (invariance testing). PLS approach to SEM using R

Structural Equation Modelling+Confirmatory Factor Analysis

Sales probability prediction and lead scoring based on the probability of sales. R language and excel. Random forest classification model + logistic regression were used.

Machine learning - sales probability prediction (R language)

Cluster analysis, client segmentation, latent class analysis, dimension reduction using exploratory factor analysis, principal component analysis and other technics. R, SPSS, Stata.

Cluster and principal component analysis, factor analysis

Kaplan-Meier plots to visualize survival curves, Log-rank test to compare the survival curves of two or more groups, Cox proportional hazards regression, Andersen-Gill Regression Model, comparison pre- and post intervention data, comparison between experimental and control group

Survival analysis (other analysis of medical data)

Analysis environmental, medical, psychological and other data with top-level quality (supporting researchers in their scientific investigation to submit articles in scientific journal or for PhD theses/other scientific papers)

Statistical support for researchers

Financial data analysis using EViews

Structural Equation Modelling+Confirmatory Factor Analysis

Machine learning - sales probability prediction (R language)

Cluster and principal component analysis, factor analysis

Survival analysis (other analysis of medical data)

Statistical support for researchers

Arvostelut

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Näytetään 1 - 5 / 50+ arvostelua

Suodata arvosteluja:

5,0

$50,00 USD

Hypothesis Testing Statistical Analysis

Oleksii quickly understood the requirements and delivered an exceptional work. I would highly recommend him to everyone and would love to work with him again.

Curios G.

@vw8033363vw

•

3 kuukautta sitten

5,0

$265,00 USD

regression analysis

I highly recommend Oleksii for his exceptional statistical analysis skills. His ability to navigate complex data and provide insightful, clear findings significantly enhanced our project. The detailed visual representations he provided added great value. Oleksii is a true professional and a valuable asset to any research team!