Displaying 15 results from an estimated 15 matches for "newframe".
2007 Jul 17
2
SLLOOOWWW function ...
...ge[2])){
# Extract all data associtaed with the current time (minute)
frame <- subset(mylist,mylist[["Time"]] == minute)
# Sort by Intensity
frame <- frame[order(frame[["Intensity"]],decreasing = TRUE),]
# Establish output frame using the most intense candidate
newframe <- frame[1,]
# Establish overlap-checking vector using the most intense candidate
lowppm <- round(newframe[1,][["Mass"]]-newframe[1,
[["Mass"]]/1E6*ppmrange,digits=digit)
highppm <- round(newframe[1,][["Mass"]]+newframe[1,
[["Mass"]]/1E6*ppmran...
2004 May 11
2
lm with predictor matrix
...ple of how to fit a linear model where the
response is a matrix, please? (other than a loop over lm calls)
The ?lm points me to model.matrix but it is not clear to me how to use a
model matrix in an lm call.
fit<-lm(headmatrix ~ tailmatrix) causes problems as soon as I
use predict(fit,newframe). The variables in tailmatrix are not found in
newframe.
Thanks,
Claus
---------------------------------
[[alternative HTML version deleted]]
2005 Aug 12
1
as.formula and lme ( Fixed effects: Error in as.vector(x, "list") : cannot coerce to vector)
...or message. Same works ok with lm, and with
> lme and a fixed formula.
>
> # demonstrates problems with lme and as.formula
> demo<-data.frame(x=1:20,y=(1:20)+rnorm(20),subj=as.factor(rep(1:2,10)))
> demo.lm1<-lme(y~x,data=demo,random=~1|subj)
> print(summary(demo.lm1))
> newframe<-data.frame(x=1:5,subj=rep(1,5))
> predict(demo.lm1,newframe,level=0)
>
> fma<-as.formula("y~x")
> demo.lm<-lm(fma,data=demo) # ok
> predict(demo.lm,newframe,level=0) # ok
> demo.lm2<-lme(fma,data=demo,random=~1|subj) # looks ok, but isn't
> pr...
2001 Feb 23
1
as.formula and lme ( Fixed effects: Error in as.vector(x, "list") : cannot coerce to vector)
...as.formula with lme leads
to an error message. Same works ok with lm, and with
lme and a fixed formula.
# demonstrates problems with lme and as.formula
demo<-data.frame(x=1:20,y=(1:20)+rnorm(20),subj=as.factor(rep(1:2,10)))
demo.lm1<-lme(y~x,data=demo,random=~1|subj)
print(summary(demo.lm1))
newframe<-data.frame(x=1:5,subj=rep(1,5))
predict(demo.lm1,newframe,level=0)
fma<-as.formula("y~x")
demo.lm<-lm(fma,data=demo) # ok
predict(demo.lm,newframe,level=0) # ok
demo.lm2<-lme(fma,data=demo,random=~1|subj) # looks ok, but isn't
print(summary(demo.lm2))
#Fixed effe...
2011 Sep 13
1
implicit data frame reference
If I create an aggregation like this:
aggregate(lastYear[,8:10],list(Stadium=lastYear$STAD),mean)
I'll get a new data frame, which I can order if I assign it like this:
newFrame <- aggregate(lastYear[,8:10],list(Stadium=lastYear$STAD),mean)
newFrame[order(newFrame$TEMP),]
But.. if I just want to do this in one statement, what can I do? If this
was perl, I'd be using something like $_:
aggregate(lastYear[,8:10],list(Stadium=lastYear$STAD),mean)[order($_$TEMP),]
S...
2011 Mar 19
1
strange PREDICTIONS from a PIECEWISE LINEAR (mixed) MODEL
...ct(mod)
lines(x[order(x)],yy[order(x)],col=2,lwd=2)
#--lme
#grouping factor, unbalanced
g<-as.character(c(1:200))
id<-sample(g,size=1000,replace=T,
prob=sample(0:1,200,rep=T))
table(id) #unbalanced
mod2<-lme(y~x+x*(x>-1),random=~x|id,
data=data.frame(x,y,id))
summary(mod2)
newframe<-data.frame( #fictious id
id="fictious",
x)
newframe[1:5,]
#predictions
yy2<-predict(mod2,level=0, newdata=newframe)
lines(x[order(x)],yy2[order(x)],col="blue",lwd=2)
# add variable in the model
z<-rgamma(1000,4,6)
mod3<-lme(y~x+x*(x>-1)+z
,random=~x|id...
2005 Sep 08
1
Converting a matrix to a dataframe: how to prevent conversion to factor
..."Text2",..: 1 2 3 4
$ NUMBERS: Factor w/ 4 levels "11","12","13",..: 4 3 2 1
One work-around is to write the matrix (or the dataframe) to a file,
then read the file back using the as.is argument.
write.table(MATRIX, "JUNK", row.names=F)
NEWFRAME <- read.table("JUNK", as.is=T, header=T)
> str(NEWFRAME)
`data.frame': 4 obs. of 2 variables:
$ TEXT : chr "Text1" "Text2" "Text3" "Text4"
$ NUMBERS: int 14 13 12 11
This restores the NUMBERS to their intended mode (integers,...
2006 Sep 13
7
inserting columns in the middle of a dataframe
Dear R users:
Is there a built-in and simple way to insert new columns after other columns
in a dataframe?
I.e. currently I have:
V1 V2 V3 V4
[1,]
[2,]
Etc.
But I want
V1 V5 V2 V3 V4
[1,]
[2,]
Etc.
Can this be done in one line?
Jon Minton
[[alternative HTML version deleted]]
2007 Oct 08
2
as.ordered
Hello Members,
I try to convert variables in a data.frame (bract.awn) in the class
ordered.
str(bract.awn)
'data.frame': 348 obs. of 2 variables:
$ bracts.length.relative.to.flower...............Min: Factor w/ 4
levels "1","2","3","4": 2 3 3 3 3 2 1 4 3 2 ...
$ bract.awn.relative.to.body.................Max : Factor w/ 4
levels
2011 Mar 18
1
PREDICTIONS from a PIECEWISE LINEAR (mixed) MODEL: THEY AIN'T LINEAR BETWEEN BREAK POINTS!!
...e a fictious data.frame for the predictions , in fact lme predict
values inside the clusters
, id in my case, they are patients..
I need instead a population result...
nx<-seq(
min(cd4,na.rm=T),
max(cd4,na.rm=T),
length.out=200)
nt<-seq(
min(rt,na.rm=T),
max(rt,na.rm=T),
length.out=200)
newframe<-data.frame( #generate a fictious patient's profile
id="48",
cd4=nx,
rt=nt,
sex=rep("M",200),
age=rep(mean(age),200),
nadir=rep(mean(age),200),
pharmac2=rep("PI.boost",200),
resp2=rep("mild",200),
hbs=rep(1,200),
hcv=rep(1,200),
hivbl=rep(mean(h...
2004 Mar 26
4
multicolumn sort on dataframe?
...evels( nspr.code ) )[nspr.code]
nspr.tpa <- as.numeric( levels( nspr.tpa ) )[nspr.tpa]
hope <- as.data.frame( cbind( nspr.code, as.numeric(nspr.tpa) ) )
and it seems to work, but I have dataframes that I would like to sort on
using multiple columns (numeric and character). Something like :
newframe <- sort( data=frame, list=c(plot,plant,sp) )
Or am I just barking up the wrong tree?
Jeff.
---
Jeff D. Hamann
Forest Informatics, Inc.
PO Box 1421
Corvallis, Oregon USA 97339-1421
541-754-1428
jeff.hamann at forestinformatics.com
www.forestinformatics.com
2010 Jun 18
5
extract date time from a text file
I a have a text file where every line is like that:
"2007-12-03 13:50:17 Juan Perez"
("yy-mm-dd hh:mm:ss First Name Second Name")
I would like to make a data frame with two column one for date and the
other one for name.
When I use read.delim it was transformed in a data frame with 4 colums.
Bye,
Sebasti?n.
2003 Aug 29
2
extract numerical variables from a data frame
Hi
I try to create from a data frame a new one which contains only the
numerical variables (or factorial ones).
Is there any function which does this task directly ?
Or, is there any function which return the mode of each columns of a data
frame. ?
Thanks a lot for any help you can offer me,
Vincent Spiesser
2010 Nov 10
1
Inserting Missing Data
Greetings
I'm attempting to insert missing data on the smallest size class of
cave cricket instars into a data frame. The data involve censusing
photoplots (plots) of roosting cave crickets in which we discern in four
instars or size classes. I need to insert data on size class one into a
data frame that already has data on size classes two through four. The
data can be merged by their
2001 Nov 12
2
check() warnings for survival-2.6
...t; "is.na.coxph.penalty"
[19] "is.na.ratetable" "is.na.ratetable2"
[21] "labels.survreg" "match.ratetable"
[23] "model.frame.coxph" "model.frame.survreg"
[25] "model.newframe" "print.coxph.penal"
[27] "print.ratetable" "print.summary.survreg"
[29] "print.survdiff" "print.survexp"
[31] "print.survreg.penal" "residuals.survreg.penal"
[33] "summar...