search for: othervariable

Hi, Could anyone tell me what is wrong: > length(unique(mydata$myvariable)) [1] 2 > and in t-test: (...) Error in t.test.formula(othervariable ~ myvariable, mydata) : grouping factor must have exactly 2 levels > I re-checked the code and still don't get what is wrong. Moreover, there is some strange behavior: /1 It seems that the error is vulnerable to NA'a, because it affects some variables in data set with NA's and d...

Hi, I've got some data in a data frame arranged like this: x y z othervariables .... 0.1 0.2 1.7 0.01 .... 0.2 0.2 1.3 0.23 .... 0.2 0.3 1.1 0.43 .... etc I'd like to plot a heatmap of this data, with x and y as the (x,y) co- ords and z defining the colour at each point. I'm having difficulty finding the correct functions to use. Can anyone make any recommendati...

...s", I use sth containing code[1]. It may sounds unnecessary in this special case. But as I have some interaction work to do with an exsiting project and this is what I want to achieve. I try to use the noquote function on "code", and it returns sth as following: [1] Prices Rates OtherVariables... Then I call noquote(code)[1], it gets [1] tblPrices How can I get rid of the [1]? Could anyone give me some advice? many thanks -- View this message in context: http://www.nabble.com/No-quote-tf4904509.html#a14046941 Sent from the R help mailing list archive at Nabble.com.

I want to give the "rho" value below to another variable.How ? > Spearman's rank correlation rho > > > > data: a[, 3] and a[, 2] > > S = 22, p-value = 0.001174 > > alternative hypothesis: true rho is not equal to 0 > > sample estimates: > > rho > > 0.8666667 -- View this message in context: