Displaying 20 results from an estimated 4000 matches similar to: "Date Time conversion"
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
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,
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}))
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
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,
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
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 Jan 03
2
Sas by function in R
Hello,
It's an alternative to use SAS by function in R?
I want to plot d histograms by plot.from example bellow:
Thank you!
plot d
1 1 16.3
2 1 25.0
3 1 57.8
4 1 17.0
5 2 10.8
13 2 96.4
17 3 76.0
18 3 32.0
19 3 11.0
20 3 11.0
24 3 106.0
25 3 12.5
21 4 19.3
22 4 12.0
26 4 15.0
27 5 99.3
32 7 11.0
36
2012 Sep 05
4
Summarizing data containing data/time information (as factor)
Dear R user
I want to create a table (as below) to summarize the attached data
(Test.csv, which can be read into R by using 'read.csv(Test.csv, header=F)'
), to indicate the day that there are any data available, e.g.value=1 if
there are any data available for that day, otherwise value=0.
28/04 29/04 30/04 01/05 02/05
532703 0 1 1
2012 May 03
2
Help with readBin
I'm trying to read a binary file created by a fortran code using readBin
and readChar. Everything reads fine (integers and strings) except for
double precision numbers, they are read as huge or very small number
(1E-250,...). I tried various endianness, swap, But nothing has worked so
far.
I also tried on R 64 bit for linux and windows (R 2.14) and R 2.11 on
windows XP 32 bit.
Any help would
2012 Nov 14
2
aggrete data from combination
Dear R users,
A have a dataframe (matrix) with two collumns (plot, and diameter (d)). I
want all diameters values for different combination of plots.
For example I want all d values for all posible combination, 100C2 (all d
values for plot 1 with all d values in the plot 2.......with all d values
from plot 1 with all d values from plot 100, ...... with all d values from
plot 99 with all d values
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
2012 Jul 17
1
Script help: Determining Time Difference between two data points.
I have the following data (a subset of the real data set):
structure(list(Date = structure(c(1209625080, 1209641460, 1209652500,
1209676800, 1209682860, 1209692100, 1209706980, 1209722580, 1209726300,
1209739620, 1209762780, 1209765720, 1209770520, 1209791040, 1209812580,
1209829920, 1209837180, 1209848160, 1209854640, 1209859440, 1209870780,
1209887760, 1209901080, 1209921660, 1209929280,
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
--
[[alternative HTML version deleted]]
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,
2008 Jul 06
2
lattice question
I'm creating a lattice barchart based off a pretty complicated data
structure. The barchart comes out quite nice ( thanks
to lattice ) but the problem is that the horizontal axis comes out all
scrunched because the barchart doesn't know that the intervals
of Var.1 are really "associated" with the conditioning variable Var.2.
Therefore, all the intervals of Var.1 are put on
2017 Dec 06
2
Odd dates generated in Forecasts
Dear friends,
I have a weekly time series which starts on Jan 4th, 2003 and ends on
december 31st, 2016.
I set up my ts object as follows:
MyTseries <- ts(mydataset, start=2003, end=2016, frequency=52)
MyModel <- auto.arima(MyTseries, d=1, D=1)
MyModelForecast <- forecast (MyModel, h=12)
Since my last observation was on december 31st, 2016 I expected my forecast
date to start on
2017 Dec 06
0
Odd dates generated in Forecasts
> On Dec 6, 2017, at 5:07 AM, Paul Bernal <paulbernal07 at gmail.com> wrote:
>
> Dear friends,
>
> I have a weekly time series which starts on Jan 4th, 2003 and ends on
> december 31st, 2016.
>
> I set up my ts object as follows:
>
> MyTseries <- ts(mydataset, start=2003, end=2016, frequency=52)
>
> MyModel <- auto.arima(MyTseries, d=1, D=1)
2017 Dec 06
1
Odd dates generated in Forecasts
Thank you very much David. As a matter of fact, I solved it by doing the
following:
MyTimeSeriesObj <- ts(MyData, freq=365.25/7,
start=decimal_date(mdy("01-04-2003")))
After doing that adjustment, my forecasts dates started from 2017 on.
Cheers,
Paul
2017-12-06 12:03 GMT-05:00 David Winsemius <dwinsemius at comcast.net>:
>
> > On Dec 6, 2017, at 5:07 AM, Paul