r
rafreis

Rafael R

@rafreis
4,9(275)

Top Rated

Data is the new oil!

Brésil
Anglais
Certaines informations sont présentées en anglais.
À propos de moi
Hi, I’m Rafael—a data scientist, researcher and professor with 10+ years of experience turning complex data into clear insights. I hold a PhD from the University of Leeds and have partnered with researchers, NGOs and businesses to solve real-world challenges using R, SPSS and Python, from statistical modelling and machine learning to experimental design. As author of 16 peer-reviewed papers, I guarantee methodological rigor, reproducibility and actionable results. Let’s connect and drive your project forward!... Plus d’infos

Compétences

r
rafreis
Rafael R
60 $US/heure
hors ligne • 
Temps de réponse moyen de 2 heures

Voir mes services

Modélisation et analyse statistique
I will perform statistical data analysis with spss, r, or python
4,9(249)
Modélisation et analyse statistique
I will do machine learning and business analytics applications

Vous souhaitez travailler sur une base horaire ?

Dites à Rafael R ce dont vous avez besoin.

60 $US

/

heure

Portfolio

275 Avis
4,9

(256)
(15)
(2)
(2)
(0)
Détails de la notation
  • Niveau de communication avec le freelance
    4,9
  • Qualité de la livraison
    4,9
  • Valeur de la livraison
    4,8
1 à 5 avis sur 275
Trier par
Les plus pertinents
    M

    melanieb_1996

    Client récurrent

    US

    États-Unis

    5

    Rafeal was amazing to work with. I have minimal knowledge about all that goes into data analysis but am passionate about the subject I’m researching. Rafeal made it easy to understand, was so kind answering questions and went above and beyond to help me move forward in my research. He is by far the best...

    200 $US-400 $US

    Prix

    6 jours

    Durée

    gig

    Modélisation et analyse statistique

    Utile?
    Oui
    Non
    B

    bridget_karthik

    US

    États-Unis

    5

    Rafael is truly exceptional. He understood my project completely simply from reading the overview I sent him. His report was extremely clear. He is also quite supportive and open to revising things to meet the client's needs.

    800 $US-1 000 $US

    Prix

    6 jours

    Durée

    gig

    Modélisation et analyse statistique

    Utile?
    Oui
    Non
    V

    vlt_dsm

    BE

    Belgique

    4,7

    Rafael completed an order for a statistical analysis (GLMM and LMM) in 2 days that had a 4 day deadline, and provided an extensive analysis report complete with tables, effect sizes and , multiple, detailed figures and annotated code.

    400 $US-600 $US

    Prix

    5 jours

    Durée

    gig

    Modélisation et analyse statistique

    Utile?
    Oui
    Non
    M
    image-docs

    mvonsabler

    Client récurrent

    AU

    Australie

    5

    Rafael is an experienced and exceptional professional. He far exceeded my expectations on delivery for a project and I am already working on another project with him. As a research assets like Rafael are invaluable. Highly recommend him!

    400 $US-600 $US

    Prix

    8 jours

    Durée

    gig

    Modélisation et analyse statistique

    Utile?
    Oui
    Non
    E

    ecarl97

    US

    États-Unis

    4,3

    Rafael was outstanding! He has a great understanding of what measurements to use to ensure your data shines. He works hard to understand your request and the depth of your project. This allows him to build the right approach to your data. Highly recommend!

    600 $US-800 $US

    Prix

    12 jours

    Durée

    gig

    Modélisation et analyse statistique

    Utile?
    Oui
    Non