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Slučajni procesi

Slučajni procesi

SPSS Statistics for Data Analysis and Visualization

SPSS Statistics for Data Analysis and Visualization

R - start here to learn R 103

15 Page Tutorial for R

For Beginners in R, here is a 15 page example based tutorial that covers the basics of R. Starting R – Trivial tutorial on how to start R for... Read more »

Probably the most useful R function I’ve ever written

The function in question is scriptSearch. I’m not much for superlatives — “most” and “best” imply one dimension, but we live in a multi-dimensional world. I’m making an exception.... Read more »

Google Analytics makes Demo Account available to all

Playing with GA data is much much easier now.Last week biggest news was definitely Google making a Demo Google Analytics Account available to everyone. As the word "demo" says,... Read more »

Visualizing multiple dimensions of Google Analytics in R

Stack bar chart  It is used when we wish to visualize a combination of categorical variables ggplot(data, aes(date, fill = region)) + geom_bar()+ labs(title = "Stacked Bar Chart", x... Read more »

Elastic net regularization of a model of burned calories

Deal with feature selection and collinearity Recently I’ve been making more use of elastic net regularization as a way of fitting linear models to data when I have more candidate... Read more »

Combinations Exercises

 

When doing data analysis it happens often that we have a set of values and want to obtain various possible combinations of them. For example, taking 5 random samples... Read more »

Tuning Apache Spark for faster analysis with Microsoft R Server

My colleagues Max Kaznady, Jason Zhang, Arijit Tarafdar and Miguel Fierro recently posted a really useful guide with lots of tips to speed up prototyping models with Microsoft R... Read more »

Labeling Opportunities in Price Series

One approach to trading which has been puzzling me lately, is to sit and wait for opportunities. Sounds simplistic, but it is indeed different than, for instance, the... Read more »

Chi-Squared Test

Before we build stats/machine learning models, it is a good practice to understand which predictors are significant and have an impact on the response variable. In this post we... Read more »

Can you nest parallel operations in R?

When we teach parallel programming in R we start with the basic use of parallel (please see here for example). This is, in our opinion, a necessary step before... Read more »

Probably the most useful R function I’ve ever written

The function in question is scriptSearch. I’m not much for superlatives — “most” and “best” imply one dimension, but we live in a multi-dimensional world. I’m making an exception.... Read more »

14 new R jobs from around the world (2016-08-16)

Here are the new R Jobs for 2016-08-16. To post your R job on the next post Just visit this link and post a new R job to the R community. You can either post... Read more »

 

         
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