How do we plot chessboard (N by N) grid??

If I have a CSV as such: row,column 1,0 5,1 7,2 2,3 0,4 3,5 6,6 4,7 Populated black square from CSV data result...

Explanation for sprintf(“%03d”, 7) functionality??

I am trying to write functions in R where the aim is to read multiple .csv files. They are named as 001.csv, 002.csv...

converting zoo to dataframe?

I converted a zoo time series into a data frame in R and the date became the index of the data frame. Is there a way...

¿Cómo extraer día, mes, año en R??

Estoy teniendo una prolemilla para extraer día, mes y año del campo date en R. El siguiente es mi dataset: Estuv...

How to draw an empty plot??

I need to make an empty plot. This is the best could I come up with. plot(0, xaxt = 'n', yaxt = 'n', bty = 'n', pch...

4d surface graph logistic regression (x,y,z, color)?

I'm trying to plot a 4d surface graph of a binomial relationship involving 4 quantitative variables (3 predictor var...

overlaying exponential distribution onto histogram?

How can i overlay an exponential distribution on a histogram of time intervals? The histogram looks like an exponent...

File path issues in R using Windows (“Hex digits in character string” error)?

I run R on Windows, and have a csv file on the Desktop. I load it as follows, x<-read.csv("C:\Users\surfcat\Desk...

How to create a map chart with direction arrows in R??

I'm looking at creating a few maps like this on the eia website site. Would you be able to point me to direction i...

Add labels to likert scale ggplot graph?

I'd like to add labels to a likert scale manually made plot. However, when I try to add labels, I only get some valu...

ggplot2 label out of the graph in likert scale?

I have a ggplot made of a likert-scale using the package likert by jason.bryer (see). If you run the code with the o...

How to create an empty matrix in R??

I am new to R. I want to fill in an empty matrix with the results of my for loop using cbind. My question is, how ca...

Replace pie chart color with gradient?

I have this pie chart pie(c(1,2,1),col=c("black","white","gray")) I would like to keep the white and black colo...

R: += (plus equals) and ++ (plus plus) equivalent from c++/c#/java, etc.??

Does R have a concept of += (plus equals) or ++ (plus plus) as c++/c#/others do? ...

Control Chart in R: possibile tests for time series?

I'm trying to reproduce in R the output of Minitab for control charts (please see the attached figure). I've alre...