I must apologize in advance for asking a simple question. I am sure that a clue
will be sufficient to get this show on the road. I am trying to graph tide
prediction data in various ways. I haven't been able to answer this
question after pouring over TFM.
I read the datafile
theight <- read.table("tides",header=TRUE)
I do get a summary() or fivenum()
summary(theight)
fivenum(theight)
But when I run
stem(theight), I receive CONSISTENTLY the following message, no matter
when I have done:
> stem(theight)
Error in stem(theight) : stem: x must be numeric
The file looks like this:
Height
0.225970
0.141066
0.058758
-0.020346
-0.095795
-0.167275
-0.234242
-0.296408
-0.353290
-0.404554
-0.450036
-0.489219
-0.521996
-0.548133
-0.567431
...
etc
Perhaps there is some manipulation necessary to make the data into a vector, but
it isn't obvious to me what to do.
Thank you for any clue whatsoever.
Alan Davis
Marianas High School
--
adavis at saipan.com 1-670-322-6580
Alan E. Davis, PMB 30, Box 10006, Saipan, MP 96950-8906, CNMI
I have steadily endeavored to keep my mind free, so as to give up any
hypothesis, however much beloved -- and I cannot resist forming one
on every subject -- as soon as facts are shown to be opposed to it.
-- Charles Darwin (1809-1882)
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Alan Davis <adavis at saipan.com> writes:> I must apologize in advance for asking a simple question. I am sure that a clue will be sufficient to get this show on the road. I am trying to graph tide prediction data in various ways. I haven't been able to answer this question after pouring over TFM. > > I read the datafile > theight <- read.table("tides",header=TRUE) > > I do get a summary() or fivenum() > summary(theight) > fivenum(theight) > > But when I run > stem(theight), I receive CONSISTENTLY the following message, no matter when I have done: > > > stem(theight) > Error in stem(theight) : stem: x must be numeric > > The file looks like this: > Height > 0.225970 > 0.141066 > 0.058758 > -0.020346 > -0.095795 > -0.167275 > -0.234242 > -0.296408 > -0.353290 > -0.404554 > -0.450036 > -0.489219 > -0.521996 > -0.548133 > -0.567431 > ... > etc > > Perhaps there is some manipulation necessary to make the data into a vector, but it isn't obvious to me what to do. > > Thank you for any clue whatsoever.Try stem(theight$Height) (read.table() returns a data frame. It could have multiple columns.) -- O__ ---- Peter Dalgaard Blegdamsvej 3 c/ /'_ --- Dept. of Biostatistics 2200 Cph. N (*) \(*) -- University of Copenhagen Denmark Ph: (+45) 35327918 ~~~~~~~~~~ - (p.dalgaard at biostat.ku.dk) FAX: (+45) 35327907 -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-help-request at stat.math.ethz.ch _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._