I\'m still pretty new to R and AI / ML techniques. I would like to use a neural net for prediction, and since I\'m new I would just like to see if this is how it should be done.
Given two float matrices in R, I would like to get the relative error between every entry, and th开发者_如何学JAVAen among all errors search the max of all of them and compare it against 10%, i.e. MAX
I have hundreds of matrices that need to be used in R and most of them are around 45000x350 each. What I\'d like to do is find an optimal database software choice and schema to store the data in and b
Instead of something like lm(bp~height+age, data=mydata) I would like 开发者_运维技巧to specify the columns by number, not name.
I have an object from ggplot2, say myPlot, h开发者_运维技巧ow can I identify the ranges for the x and y axes?
I\'m trying to create an as.data.frame.by method which basically melts the N-dimensional by object for use with latex.table.by.
I have two data frames like so: AB 16 27 54 33 9开发者_如何学Python9 and the other one: AC 15 59 31 91 and I want to merge them to create
I am trying to plot two box-plots 开发者_如何学编程in the same plot, each within the same category.
Let\'s say that I have got two lists: temp<-c(\"con.sin.results\",\"sin.results\",\"exp.results\") Temp<-c(\"[,1:16]\",\"[,17:32]\",\"[,33:48]\",\"[,49:64]\")
In a data.frame (or data.table), I would like to "fill forward" NAs with the closest previous non-NA value. A simple example, using vectors (instead of a data.frame) 开发者_开发百科is the fo
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