[R] Why does qt() return Inf with certain negative ncp values?

Can anyone explain why Inf appears in the following results? > sapply(-1:-10, \(ncp) qt(1-1*(10^(-4+ncp)), 35, ncp)) [1] 3.6527153 3.0627759 2.4158355 1.7380812 1.0506904 0.3700821 [7]Inf -0.9279783 -1.5341759 -2.1085213 > sapply(seq(-6.9, -7.9, -0.1), \(ncp)

Re: [R] Combining Differnt columns in one single column

Sorry, the last post had a small mistake. I got name and val switched. Here they are in the correct order. ID_names1 <- paste0("id",1:9) ID_names2 <- paste0("id000",10:99) ID5 <-as.data.frame(ID_names1) ID5$name<-colnames(ID5) colnames(ID5)<-c("val","name") ID6 <-as.data.frame(ID_names2)

Re: [R] Combining Differnt columns in one single column

Yes, It just takes another step. Here is the new pattern: ID_names1 <- paste0("id",1:9) ID_names2 <- paste0("id000",10:99) ID5 <-as.data.frame(ID_names1) #convert to a dataframe. ID5$name<-colnames(ID5) #make a new variable from column name. colnames(ID5)<-c("name","val") #rename columns to be

Re: [R] Combining Differnt columns in one single column

Hello, Are you looking for this? ID_names <- sprintf("id%05d", 1:5) head(ID_names) #> [1] "id1" "id2" "id3" "id4" "id5" "id6" tail(ID_names) #> [1] "id49995" "id49996" "id49997" "id49998" "id4" "id5" sprintf with the format %05d pads the integers with

Re: [R] Combining Differnt columns in one single column

Dear Tim it works, But i want to treat them as a column name. Is it possible to treat as a column name ? Best, Hana On 6/13/22, Ebert,Timothy Aaron wrote: > ID5 <- as.data.frame(ID_names1) > colnames(ID5)<-"val" #rename the columns so they have the same name. > ID6 <- as.data.frame(ID_names2) >

Re: [R] Changing sign of columns and values

Dear, Jim I try the following codes but I got an error Dfm1<-data.table(Dfm1) # the names of the columns to be multiplied by BETA ID_names <- paste0("ID",4:8) # the names of the new columns that have been multiplied by beta new_ID_names <- paste0("new_",ID_names) # Now with a simple command we

[R] Kindly please help

Hi, Dear Respected Professor! I hope that you are doing well. Kindly help me with the following: I have the R-codes for the "Quantile Augmented Mean Group" method. The relevant codes and data are attached herewith. Note: The link to the reference paper is:

Re: [R] Changing sign of columns and values

Dear Jim, Good morning, hope you are doing very well, Here I want to calculate the specific parameters based on the previous data. I have attached below. can you help me with r functions or code to solve the above equations Kind regards, Hana On 6/13/22, Jim Lemon wrote: > Hi Hana, > This is