Re: [R] Creating Dummy Var in R for regression?

Hi, please also have a look at the 'cut' function.Very handa function for these types of situations. Best, Fredrik On Sun, Aug 7, 2016 at 8:10 PM, Shivi Bhatia wrote: > Thank you Jeremiah and all others for the assistance. This really helped. > > On Sat, Aug 6, 2016 at

Re: [R] Creating Dummy Var in R for regression?

Thank you Jeremiah and all others for the assistance. This really helped. On Sat, Aug 6, 2016 at 5:01 AM, jeremiah rounds wrote: > Something like: > > d = data.frame(score = sample(1:10, 100, replace=TRUE)) > d$score_t = "low" > d$score_t[d$score > 3] = "medium" >

Re: [R] Creating Dummy Var in R for regression?

Something like: d = data.frame(score = sample(1:10, 100, replace=TRUE)) d$score_t = "low" d$score_t[d$score > 3] = "medium" d$score_t[d$score >7 ] = "high" d$score_t = factor(d$score_t, levels = c("low", "medium", "high"), ordered=TRUE) #set ordered = FALSE for dummy variables X =

Re: [R] Creating Dummy Var in R for regression?

Thanks you all for the assistance. This really helps. Hi Bert: While searching nabble i got to know R with factors variables there is no need to create dummy variable. However please consider this situation: I am in the process of building a logistic regression model on NPS data. The outcome

Re: [R] Creating Dummy Var in R for regression?

Just commenting on the email subject, not the content (which you have already been helped with): there is no need to *ever* create a dummy variable for regression in R if what you mean by this is what is conventionally meant. R will create the model matrix with appropriate "dummy variables" for

Re: [R] Creating Dummy Var in R for regression?

Hello, Your ifelse will never work because reasons$salutation== "Mr" & reasons$salutation=="Father" is always FALSE and so is reasons$salutation=="Mrs" & reasons$salutation=="Miss". Try instead | (or), not & (and). Hope this helps, Rui Barradas   Citando Shivi Bhatia :

[R] Creating Dummy Var in R for regression?

Dear Team, I need help with the below code in R: gender_rec<- c('Dr','Father','Mr'=1, 'Miss','MS','Mrs'=2, 3) reasons$salutation<- gender_rec[reasons$salutation]. This code gives me the correct output but it overwrites the reason$salutation variable. I need to create a new variable gender to