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I have a column with strings: name aldrinas63_rios200_2001 sa_c.fr.1234 I want to count the...
I know plm cannot deal with twoway random effect in unbalanced panel but I am not sure can plm...
I'm trying to send an email with R. This is the code that I use for send an email with...
I am working with several big squared matrices of 1.3e6 rows, and I want to the diagonal of all of...
I would like to plot a raster layer, however the title does not appear. plot(ndwi_18, main=...
Apologies in advance if this has an obvious answer; I have a vector of IPv4 networks in CIDR...
I have below mentioned a dataframe in R, using query. Query<-paste0("select ID, Date, Value,...
I'm using R 3.4.1 on Red Hat Enterprise Linux 6. I have version 3.0 of package asreml installed...
Briefly, I am going to do the Voronoi tessellation of 100 points, and create different sets of 100...
I was trying a simple left_join() with two data frames using sparklyr. The tables are as...
I keep running into this issue, I have a dataset such as: 'data.frame': 5362 obs. of 5...
I need to find the index for the closest date match from a data table as shown below. coldate: ...
I would like to create a new variable that is labelled change_index. This variable is outcome1 at...
I was following a tutorial on how to do a cox analysis, but can't get the plot right. The first...
I'm trying to fit a regularized logistic regression model with an offset using glmnet. However, I...
`y <- c() for( position in c("cannon","jackson","benford","paws","moxie") ) { n <-...
I am trying to understand how to use the R package glmnet. Suppose I have a dataset, representing...
I am making trees using hclust. I have several distances defined on a common set. I want to find,...
I'm experimenting with the quantile function in independent dataframes. A very easy example to...
This question already has an answer here: unique.data.table select...
data_processed <- sqldf(" select a.permno, a.number, a.mean, b.ret as med, a.std ...
I am for sure no expert in R yet. I grew up with SPSS and is slowly shifting to R. I solve problems...
I have matrix with 20 items in 20 different locations with a value for each combinaion. I want to...
I have already converted this data set from long to wide but have lost the code! I remember it...
We wanted to see whether the recorded EEG data would be a good classifier to classify participants...
I have been I’m trying to write a script in R to programmatically update Google Analytics custom...
I have a dataframe with three variables. The levels of each never repeat themselves, in fact they...
I want to add this data to my dataframe as a row not a column. df = data.frame('symbol'=...
I am developing a shiny app where user can select multiple columns in a big dataset to create a...
I have a linear correlation between two variables x and y, but need to control for some variables z...