Displaying 20 results from an estimated 801 matches for "melting".
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2011 Aug 25
1
Specifying argument values in a function
Hello all,
I am trying write a fairly simple function that provide a quick way to
calculate several distributions for a data set. I am trying to provide
a function that has a argument that specifies which distribution is
outputted (here "norm" or "cumu"). I also have a melt argument but
that seems to be working fine. I have been able to get my function
working well for just
2008 Dec 10
4
tapply within a data.frame: a simpler alternative?
Dear list,
I have a data.frame with x, y values and a 3-level factor "group",
say. I want to create a new column in this data.frame with the values
of y scaled to 1 by group. Perhaps the example below describes it best:
> x <- seq(0, 10, len=100)
> my.df <- data.frame(x = rep(x, 3), y=c(3*sin(x), 2*cos(x),
> cos(2*x)), # note how the y values have a different
2017 Jul 24
0
Compare output of Violin plot from ggplot2 and vioplot . Need Explanation
Hi,?
I have made violin plot with both ggplot2 and vioplot package with same data.?
The results and code are as follows.?
################### ?Loading data?
data.melt <- dget("https://gubox.box.com/shared/static/rirth0eym114afwyjxwe128sjzipzdym.txt")
################### ?Violin plot by library(vioplot)
library(vioplot)
data.use_11<- data.melt$value[data.melt$ident == 0]
2011 Oct 27
2
Syntax Check: rshape2 melt()
This is my first excursion into using reshape2 and I want to ensure that
the melt() function call is syntactically correct.
The unmodifed data frame is organized this way:
head(tds.anal)
site sampdate param quant
1 UDS-O 2006-12-06 TDS 10800
4 STC-FS 1996-06-14 Cond 280
7 UDS-O 2007-10-04 Mg 1620
9 UDS-O 2007-10-04 SO4 7580
19 JCM-10B 2007-06-21 Ca 79
20
2008 Feb 28
1
Errors melt()ing data...
Hi,
I'm trying to melt() some data for subsequent cast()ing and am
encoutering errors.
The overall process requires a couple of casts()s and melt()s.
########Start Session 1##########
## I have the data in a (fully) melted format and can cast it fine...
> norm1[1:10,]
Pool SNP Sample.Name variable value
1 1 rs1045485 CA0092 Height.1 0.003488853
2 1 rs1045485
2011 Sep 22
7
need help on melt/cast
Hello,
I need to convert dataframe from:
ID T0 T1 T2
A 1 2 3
B 4 5 6
C 7 8 9
to:
ID Variable Value
A T0 1
A T1 2
A T2 3
B T0 4
B T1 5
B T2 6
C T0 7
C T1 8
C T2 9
i tried to use melt cast but it gives me all the time not exactly what I
need.
Thank
2008 Jul 25
3
melting a list: basic question
Dear list,
I'm trying to use the reshape package to perform a merging operation
on a list of data.frames as illustrated below,
> a <- 1:10
> example <- list( data.frame(a=a, b=sin(a)), data.frame(a=a,
> b=cos(a)) )
>
> melt(example, id = a)
this produces the desired result, where the data.frames have been
coerced into one with a common identifier variable
2008 Feb 07
1
Problems reshaping data with cast()
Hi,
I'm trying to cast() some data, but keep on getting the following error...
> norm.all.melted.height <- transform(all.melted.height,
+ norm.height = value / ave(value,
SNP, Pool, FUN = max)
+ )
Warning messages:
1: In FUN(X[[147L]], ...) :
no non-missing arguments to max; returning -Inf
2: In FUN(X[[147L]],
2009 Jan 22
1
melt stumbles over deleted columns
I have a data frame that is the result of a cast (reshape) operation. I
deleted the variable column and tried to melt the resulting data frame.
Depending on which method I use to delete the column I get different
error messages when melting:
> head(tinfos)
vpn group trial_no item relation trial_type rt variable #
1 102 2 1 4351 diag1 distractor 8471 fix_d 27
2 102 2 2 1214 id target 4072 fix_d 17
3 102 2 3 4213 diag1 distractor 7040 fix_d 27
4 1...
2010 Dec 10
1
melt causes errors when characters and values are used
Hello,
I am finding that the melt function from the reshape library causes
errors when applied to a data.frame that contains numeric and character
columns. For example,
melt(id.vars="ID",data.frame(ID=1:3,date=c("a","b","c"),value=c(1,4,5)))
ID variable value
1 1 date a
2 2 date b
3 3 date c
4 1 value <NA>
5 2
2013 Nov 23
1
how to melt variable to one variable
I want to make a stacked bar plot with one bar for two variables from my
data "chir", the two variables have about 100 values like no, yes and na. I
want to show how many no, yes and na they both have together with the
stacked bar. I tried to melt these to variables first like this:
melt1=melt(data_chir, measure.vars=c("N1_re", "N2_re"), var="zpd")
but it
2011 Oct 31
1
reshape2: Lost Values Between melt() and dcast()
Working with 5 subset streams from my source data frame, three of them
successfully call dcast(), but two fail:
jerritt.cast <- dcast(jerritt.melt, site + sampdate ~ param)
Aggregation function missing: defaulting to length
and
winters.cast <- dcast(winters.melt, site + sampdate ~ param)
Aggregation function missing: defaulting to length
Yet both data frames have the values in their
2012 Jul 25
2
reshape -> reshape 2: function cast changed?
Hi,
I used to use reshape and moved to reshape2 (R 2.15.1). Now I tried some of my older scripts and was surprised that my cast function wasn't working like before.
What I did/want to do:
1) Melt a dataframe based on a vector specifying column names as measure.vars. Thats working so far:
dfm <- melt(df, measure.vars=n, variable_name = "species", na.rm = FALSE)
2) Recast the
2010 Jun 18
3
inverse function of melt
Dear list,
I'm looking for an inverse function of melt(which is in package reshape).Namely, I had a data frame like this
(Table1)
YEAR VAR1 VAR2 VAR3
1995 7 3 45
1996 5 6 32
1997 6 10 15
I transformed my data by using the melt function and my data was reshaped in the following format:
(Table2)
YEAR variable
2016 Jun 24
3
Ayuda ggplot2
Hola a todos!
Soy nueva en R y necesito hacer unos gráficos para una investigación, he
explorado un poco y estoy intentando usar ggplot2 ya que hace gráficos de
muy buena calidad...tengo los datos de varios años para diferentes grupos
de empresas y los pretendo graficar tanto en un solo grafico como en varios
(facet_wrap) pero tengo problemas con el eje de las X, ya que necesito que
aparezcan los
2012 Oct 17
1
Comparing dcast and reshape
I'm in the middle of my own little intellectual exercise comparing
dcast() and reshape() and have successfully stumped myself. I want to
melt() a data frame, then dcast() it into a new form. After doing so, I
want to duplicate the process using reshape().
So far, I can do the melt and cast
require(reshape2)
Raw <- data.frame(site = c(1, 1, 1, 1, 2, 2, 2, 2),
id =
2013 Nov 17
1
melt dataframe
Hi,
Try:
dat1 <- read.csv("precipitationRglimclim.csv",header=TRUE,stringsAsFactors=FALSE,sep="\t")
library(reshape2)
dat2M <- melt(dat1,id.var=c("year","month","day"))
dat2M1 <- dat2M[with(dat2M,order(year,month,day,variable)),]
?dim(dat2M1)
#[1] 1972320?????? 5
?row.names(dat2M1) <- 1:nrow(dat2M1)
?colnames(dat2M1)[4:5] <-
2013 Jan 16
4
Changing frequency values to 1 and 0
...with a large data set, where I grouped several species in one
group (guild). Then I reshaped my data as shown below. Now, I just want to
have "Rep" only as 1 or 0.
I'm not being able to change the values of rep>=1 to 1... tried many things
and I'm not being successful!
> melting=melt(occ.data,id.var=c("guild", "Site", "Rep", "Año"),
measure.var="Pres")
> y=cast(melting, Site ~ Rep ~ guild ~ Año)
Aggregation requires fun.aggregate: length used as default
> y[1:10,,"gui4a",1:2]
, , Año = 2003
Rep
Site...
2005 Jul 26
3
Melting TDM card
Yesterday FedEx brought me my new TDM400P with 4 FXS modules. I installed
it (in the correct type PCI slot) , plugged in the power, and fired up the
system. A few minutes later everyone in the office is complaining about
something burning. I open the server again, and the top of the Digium card
is black, slightly deformed, and looks and smells of melted plastic. The
funny thing is.the card
2011 Mar 10
2
Reshape, melt and cast query
I have a dataset that is based on crop output for a single crop
*sugarcane*...but
each observation is further subdivided into 3 kinds of sugarcane
i have read the file and have also used melt it to sort it on the
basis of *crop
group* using
melt(sugarcane, m=c("Crop_group")) -> canefile
this is how it has cast the data
variable value
1 Crop_group Sugarcane