Displaying 20 results from an estimated 10000 matches similar to: "sort rows of matrix by rows of another matrix"
2011 Feb 10
1
Conditional sampling
R experts,
I need to sample two rows without replacement from the following data frame such that
neither row contains the same 'DOW'. For example, I cannot select both a Monday morning
and a Monday afternoon. I am using STRATA_NUM as an index to randomly select rows from,
since this variable indexes all unique permutations of DOW, SITE, and TOD. I know how to
use the sample function
2011 Jul 01
2
Initiating in BNArray
Hi,
I'm trying to understand some details about an example maintened in [1].
According that link, I have total.data as a data set (am I right?).
But I don't understand how is built that table.
I saved the dataset in a file, with dput(), and had something like this:
structure(list(df.all = structure(list(V1 = structure(c(1L, 2L,
3L, 4L, 5L, 6L, 7L, 8L, 9L, 10L, 11L, 12L, 13L, 14L, 15L,
2010 Apr 19
1
What is mclust up to? Different clusters found if x and y interchanged
Hello All...
I gave a task to my students that involved using mclust to look for clusters
in some bivariate data of isotopes vs various mining locations. They
discovered something I didn?t expect; the data (called tur) is appended
below.
p <- qplot(x = dD, y = dCu65, data = tur, color = mine)
print(p) # simple bivariate plot of the data; looks fine
mod1 <- Mclust(tur[,2:3])
mod1$G
mod2
2011 Jul 07
2
How do I overlay two trellis plots of lme fitted lines produced by plot.augPred?
Hello,
I want to use lme to fit two (or more) models, and then compare the fits
on each individual. I know how to write my own code to do this (for each
individual, plot the raw data, followed by lines() to plot each fitted
curve) but I would like to use plot(augPred(... as it produces a nice
trellis plot. I thought I could do this with par(new=T) but it does not
seem to work.
2013 Apr 11
1
Dotchart per groups
Hi all,
I would like to ask you for help. I did a dotplot - using dotchart
function.
There are two localites (loc) with values 75 or 56 in my data ZZ.
The f column has 4 levels: P1, S1, S8, R6.
The dataframe is ordered by N value, pchloc value is assign to use "pch" in
plot.
> head(ZZ)
loc f N color ordered pchloc
98 75 S1 6.39 green 1 16
99 75 S8 6.44 blue
2008 Sep 26
2
Date Time conversion
what am I doing wrong?
chron(as.character(f), format=c(dates="%m/%d/%y", times="%h:%m"))
f <- structure(c(51L, 60L, 66L, 87L, 90L, 115L, 23L, 35L, 37L, 6L,
12L, 55L, 84L, 96L, 109L, 17L, 29L, 41L, 3L, 74L, 94L, 102L,
30L, 8L, 46L, 69L, 107L, 15L, 25L, 39L, 1L, 71L, 95L, 19L, 56L,
62L, 76L, 85L, 99L, 111L, 42L, 4L, 52L, 61L, 67L, 91L, 13L, 24L,
36L, 38L, 7L, 81L, 82L, 57L,
2011 Nov 08
2
nesting scale_manual caracteristics in ggplot
Hi there,
I am having a little problem with combining three scale_manual commands in a
facet plot. I am not able to combine the three different characteristics,
instead ending up with three different descriptions next to the graph for
the same geom. I would like to see two separate labels (not three); one
describing lines 1-7 and the other 8-14. For each of the treatments (A-B) I
want a
2016 Apr 22
1
Unique Ordering
Hi R-Help,
data at bottom
I've been struggling with a problem where I need to order based on 1) the
Frequency "Freq" and 2) keeping each group of 3 of the same type together
"Var2" but I want across all groups it to go "high to low" based on the
earn factor.
Thank you!
structure(list(Var1 = structure(c(1L, 3L, 2L, 1L, 2L, 3L, 1L,
3L, 2L, 3L, 1L, 2L, 3L, 1L,
2013 Feb 27
2
matrix multiplication
Hi,
Try this:
#mat1 is the data
res<-do.call(cbind,lapply(seq_len(nrow(mat1)),function(i) {new1<-do.call(rbind,lapply(seq_len(nrow(mat1[-i,])),function(j) {x1<-rbind(mat1[i,],mat1[j,]); x2<-(abs(x1[1,1]-x1[2,1])*abs(x1[1,5]-x1[2,5]))+(abs(x1[1,2]-x1[2,2])*abs(x1[1,6]-x1[2,6]))+(abs(x1[1,3]-x1[2,3])*abs(x1[1,7]-x1[2,7]))+(abs(x1[1,4]-x1[2,4])*abs(x1[1,8]-x1[2,8]))}));new1}))
2009 Aug 07
1
ggplot2-ddply question
Hi all:
I am trying to use the ddply function to estimate the mean of 'Total','Fry','Smolt' and 'Fry.Eq' columns without success. I have the dput of my dataset below. I wonder if someone can give me a hand with this function.
# dput(winter)
winter <-structure(list(IDDate = structure(c(37L, 48L, 59L, 62L, 63L,
64L, 65L, 66L, 67L, 38L, 39L, 40L, 41L, 42L, 43L,
2017 Oct 14
0
Populate one data frame with values from another dataframe for rows that match
Your example used one distinct studyno in DF1 and one distinct pf_mcl in
DF2. I think that makes it hard to see what is going on, but maybe I
completely misunderstand the problem. In any case, let's redefine myDF1
and myDF2. Note that myDF1 contains a studyno not in myDF2 and vice versa.
myDF1 <- structure(list(studyno = c("J1000/9", "J895/7", "J931/6",
2011 Jan 19
1
Using subset to filter data table
I am having difficulty understanding how I would constrain a data set by
filtering out 'records' based on certain criteria.
Using SQL I could query using 'select * from my.data where LithClass in
('sand', 'clay')' or some such.
Using subset, there seem to be ghosts left behind (that is, all of the
LithClass *.Labels* remain after subset)
> dput(tcc)
2011 Nov 10
2
plotting a function with given formula in ggplot2
Hi All,
I have a scatter plot produced using ggplot2 and I want to add the
regression line to this scatter plot. I suppose I can use
geom_smooth() to do this, but for the sake of learning ( I am new both
to R and ggplot2), I want to try and add it as a function (something
that curve() does in the standard R plotting). I did some search and
found that stat_function() can be used for this. But
2012 Nov 07
8
Aggregate data frame across columns
Folks,
I have a data frame with columns 200401, 200402, ..., 201207, 201208.
These represent years/months. What would be the best way to sum these columns by year? What about by quarter?
Thanks for your time,
KW
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2010 Mar 27
1
R runs in a usual way, but simulations are not performed
Dear addresses, I need perform a batch of 10 000 simulations for each of
4 options considered. (The idea is to obtain the parameter estimates in
a heteroskedastic linear regression model - with additive or mixed
heteroskedasticity - via the Kenward-Roger small-sample adjusted
covariance matrix of disturbances). For this purpose I wrote an R
program which would capture all possible options (true
2018 May 16
1
Systemfit Question
I can't get my simultaneous equations to work using system fit. Please help.
#Reproducible script
Empdata<- read.csv("/Users/ngwinuiazenui/Documents/UPLOADemp.csv")
View(Empdata)
str(Empdata)
Empdata$gnipc<-as.numeric(Empdata$gnipc)
install.packages("systemfit")
library("systemfit")
pdata <- plm.data(Empdata,
2017 Oct 15
1
Populate one data frame with values from another dataframe for rows that match
Dear @William<mailto:wdunlap at tibco.com>, thanks for the feedback. I have tested it on the larger dataset and noticed that it created two variables, pf_raw and pf_curated.
The output we were looking for, was one that takes the variable pf_mcl in curated dataset and replaces pf_mcl in matching rows within the raw dataset.
@Eric<mailto:ericjberger at gmail.com>?s solution was able to
2017 Oct 20
1
Error messages using nonlinear regression function (nls)
Hi
Keep your messages in the list, you increase your chance to get some answer.
I changed your data to groupedData object (see below), but I did not find any problem in it.
plot(wlg)
gives reasonable picture and I am not such expert to see any problem with data. Seems to me, that something has to be wrong with nlsList function.
> wheat.list <- nlsList(Prop ~ SSlogis(end,Asym, xmid,
2012 Feb 21
2
Dataframes in PLS package
I have been working with the pls procedure and have problems getting the
procedure to work with matrix or frame data. I suspect the problem lies in
my understanding of frames, but can't find anything in the documentation
that will help.
Here is what I have done:
I read in an 10000 x 8 table of data, and assign the first four columns to
matrix A and the second four to matrix B
pls <-
2012 May 04
7
Breaking up a Row in R (transpose)
I have the following:
Time A1 A1 B1 B1 C1 C2
x y x y x y
0 5 6 6 7 7 9
1 3 4 4 3 9 9
2 5 2 6 4 7 4
I want to change it to the following:
0 1 2
x y x y x y
A1 5 6 3 4 5 2
B1