### 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...