questions/data-science
This should work: df$symbol <- as.character(df$symbol) df$symbol[df$symbol == "ABCD.BO"] ...READ MORE
sink diverts R output to a connection ...READ MORE
It took me a while to solve ...READ MORE
Try this, it worked for me: options(java.parameters="-Xmx4000m&q ...READ MORE
The RJulia package is provided by R programming. ...READ MORE
Try this code: dat <- read.table("~/data/data.txt", quote="\"", ...READ MORE
Make sure you have installed the required ...READ MORE
You can follow this code: y <- rnorm(100) ...READ MORE
You can go through the ESS documentation ...READ MORE
Use expand.grid to get all possible combinations ...READ MORE
Have you installed 'ROAuth' and 'RCurl' packages? ...READ MORE
Follow the below command: C:\Program Files\R\R-3.1.1\bin\Rscript.e ...READ MORE
You can check out the official docs ...READ MORE
Here's an example, you can try this ...READ MORE
Since you're new to the field, I'd ...READ MORE
You can merge the two data frames ...READ MORE
This is happening because you're not returning ...READ MORE
You need two variables, (x and y). ...READ MORE
R has a library called, sqldf to do ...READ MORE
Loop 1: the value of speed is ...READ MORE
You can use the strsplit method to do ...READ MORE
Remove the first and last column from ...READ MORE
Use the paste command: write.csv(max.hsi, paste0("Index_", i,".csv ...READ MORE
You can calculate the relative risk as ...READ MORE
Use the bquote to write the expression and place ...READ MORE
Try this: pnbinom(3,2,0.5) sum(dnbinom(0:3,2,0.5)) This will give the following output: > ...READ MORE
You're trying to call an external application. ...READ MORE
Best soln is to integrate R linear algebra: > ...READ MORE
You can perform quasi-perl-style string interpolation using ...READ MORE
The dist() function will help you find the ...READ MORE
You can try this: pnbinom(3,2,0.5) sum(dnbinom(0:3,2,0.5)) Here's the output: > pnbinom(3,2,0.5) [1] ...READ MORE
Run the below code, it should work: wineData$taste ...READ MORE
Here's a code that will help with ...READ MORE
Try this: ggplot(dfc, aes(x=x, y=y, colour=f, fill=f, ymin=y-se, ...READ MORE
The below code will help: gregexpr("D", x) # [[1]] # ...READ MORE
Here's a small modification to your code, ...READ MORE
The risk can be calculated by using ...READ MORE
For this purpose, make use of the ...READ MORE
You can use the sample_n from dplyr to select ...READ MORE
You can create a grouping variable depending ...READ MORE
Follow this, it might help you: Produce sample ...READ MORE
You can refer the following: Suppose these are ...READ MORE
The basket.sorted() has less than 5 rules. Refer ...READ MORE
You have two FROM commands in your ...READ MORE
Instead of using the substr() try with ...READ MORE
The documentation for the lp package provides ...READ MORE
Check out the CRAN Task View on High-Performance ...READ MORE
You can try making a list of matrices ...READ MORE
Try this simple code to remove the <br ...READ MORE
R provides support to create subscripts. For ex. ...READ MORE
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