By Luis Torgo
The flexible functions and massive set of add-on applications make R a good substitute to many present and sometimes pricey information mining instruments. Exploring this quarter from the point of view of a practitioner, Data Mining with R: studying with Case Studies makes use of sensible examples to demonstrate the ability of R and information mining.
Assuming no previous wisdom of R or facts mining/statistical options, the e-book covers a various set of difficulties that pose diversified demanding situations by way of measurement, form of facts, pursuits of study, and analytical instruments. to provide the most info mining strategies and strategies, the writer takes a hands-on strategy that makes use of a chain of distinctive, real-world case studies:
* Predicting algae blooms
* Predicting inventory marketplace returns
* Detecting fraudulent transactions
* Classifying microarray samples
With those case reviews, the writer offers all precious steps, code, and data.
A aiding web site mirrors the do-it-yourself strategy of the textual content. It deals a set of freely to be had R resource records that surround the entire code utilized in the case stories. the positioning additionally presents the knowledge units from the case experiences in addition to an R package deal of numerous functions.
Read Online or Download Data Mining with R: Learning with Case Studies (Chapman & Hall/CRC Data Mining and Knowledge Discovery Series) PDF
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Extra info for Data Mining with R: Learning with Case Studies (Chapman & Hall/CRC Data Mining and Knowledge Discovery Series)
5: A conditioned box percentile plot of Algal a1. count() to create a factorized version of the continuous variable mnO2. The parameter number sets the number of desired bins, while the parameter overlap sets the overlap between the bins near their respective boundaries (this means that certain observations will be assigned to adjacent bins). The bins are created such that they contain an equal number of observations. You may have noticed that we did not use algae$mnO2 directly. The reason is the presence of NA values in this variable.
Polymorphism is the key to implementing this without disturbing the user. The user only needs to know that there is a function that provides a graphical representation of objects. R and its inner mechanisms handle the job of dispatching these general tasks for the class-speciﬁc functions that provide the graphical representation for each class of objects. All this method-dispatching occurs in the background without the user needing to know the “dirty” details of it. What happens, in eﬀect, is that as R knows that plot() is a generic function, it will search for a plot method that is speciﬁc for the class of objects that were included in the plot() function call.
Each line of this data frame contains an observation of our dataset. 7 (page 16) we have described alternative ways of extracting particular elements of R objects like data frames. 4 Data Visualization and Summarization Given the lack of further information on the problem domain, it is wise to investigate some of the statistical properties of the data, so as to get a better grasp of the problem. Even if that was not the case, it is always a good idea to start our analysis with some kind of exploratory data analysis similar to the one we will show below.