R

Find the common columns: Now perform the rbind

I am new to R and have to install a data.table into my workfile. Right now, I have implemented: However, when I run this part (Ctrl + Enter) I get the following error in the console-window: Loading required package: data.table Warning message: In library(package, lib.loc = lib.loc, character.only = TRUE, logical.return = TRUE, : there … Read more

I think that when you read in your “D1.txt”, “D2.txt”…………….”D45.txt” files they get converted to matrices and that is why your particular for loop fails. I’ll use your example: If we use class(L[[1]]) to pick out the first element of the list it will output [1] “data.frame” if you use your for loop on this … Read more

I have a data set of 9 samples (rows) with 51608 variables (columns) and I keep getting the error whenever I try to scale it: This works fine However, gives Obviously it’s a little hard to post a reproducible example. Any ideas what the deal could be? Looking for constant columns: Output: So no constant … Read more

In your case try to add setwd(“path/to/project/”) in main.R where path/to/project/ contains main.R. Then you can source functions.R either directly by source(“functions.R”) if both files lie in the same directory or source(“sub-folder/functions.R”) if the latter file is contained in a sub-folder. If you’re not working on a RStudio project, chances are the working directory of … Read more

There are several problems with the code. First, apply operators on a matrix or data.frame. You probably meant to use sapply instead. Second, nchar() calls nchar without any argument. You want nchar — i.e. the function name, without calling it (the calling will happen inside sapply):

I looked at multiple answers on Stackoverflow, but I stil couldn’t fix my problem. I made a function that works, but I added something and now it won’t work anymore. I want to replace all NA’s to 0, which seems simple to me. This is my function, and I added bframe[is.na(bframe)] <- 0: However, it … Read more

We can use the formula method of aggregate. The variables on the ‘rhs’ of ~ are the grouping variables while the . represents all other variables in the ‘df1’ (from the example, we assume that we need the mean for all the columns except the grouping), specify the dataset and the function (mean). Or we … Read more

You have two problems here: It looks like you have one observation for every value of code. That means that you can’t estimate both a residual variance (which is built in to lmer, and linear mixed models more generally) and an among-code variance — both of these parameters will be trying to estimate the same … Read more

the error looks like this i want to know whats the problem? I am basically writing a code forecasting using ARIMA and i want to knoe if there is any seasonality or trend in my data. Hoping for a quick resonse!!!!!