Displaying 20 results from an estimated 200 matches similar to: "finding and describing missing data runs in a time series"
2011 Sep 02
2
Chemical Names in Data Frames
Greetings -
I am working on some data that contain chemical names with air concentrations, and I am creating a data frame with date/time and each chemical having its own column. However, these are organic chemicals (e.g. 1-butene, 2,3,4-trimethylbenzene etc). The package I am going to be using the data with is openair, and many of the great functions require you to specify a column name which
2017 Jun 16
2
Varios gráficos en una vista en OpenAir
Funciona perfecto!
Gracias Carlos.
Atte.
Novvier Uscuchagua
De: Carlos Ortega [mailto:cof en qualityexcellence.es]
Enviado el: viernes, 16 de junio de 2017 13:46
Para: Novvier Marco Uscuchagua Cornelio <novvier en outlook.com.pe>
CC: r-help-es en r-project.org
Asunto: Re: Varios gráficos en una vista en OpenAir
Hola,
Prueba entonces esto, que sí que funciona...
#-----------------------
2017 Jun 16
2
Varios gráficos en una vista en OpenAir
Hola Carlos,
Me parece que timePlot genera los gráficos en un formato diferente.
Al ejecutar grid.arrange genera el siguiente error:
Error in gList(list(list(plot = list(formula = value ~ date | default, :
only 'grobs' allowed in "gList"
Gracias.
Atte.
Novvier Uscuchagua
De: Carlos Ortega [mailto:cof en qualityexcellence.es]
Enviado el: viernes, 16 de junio de 2017 12:38
2013 Jan 15
1
Using system() to dump HDF to text file?
Hi all --
I am working on 64-bit Windows XP. I'm not a very technical person when it
comes to the command line stuff, so please forgive me if this is a stupid
question.
I have a bunch of HDF files, and I want to dump a single PM25 data layer
from each file to .txt by invoking ncdump.exe from system(). Here's a
sample command string:
"C:/ncdump -v PM25 C:/01aug2010.hdf >
2012 Oct 18
3
svyplot and svysmooth with hexbin
Hi all-
So sorry to bother you all with something pretty basic.
I am trying to add the lines method output from svysmooth to a svyplot with style="grayhex". However, the line either appears in the wrong place or if I am running in R Studio it causes the system to crash.
I know this is something to do with Lattice graphics, but for the life of me I can not figure out how. Dr. Lumley
2011 Sep 30
2
isotope superscripts ggplot2
Happy Friday fellow R users.
I need some help - I am trying to make a graph using ggplot 2 of some lead isotope ratios. Normally, the isotope mass number appears as a superscript before the chemical symbol. However, I cannot figure out how to do this ggplot2's axis labels. The closest I have come is using "." In front of the numbers I am superscripting e.g:
ggplot(....
2011 Nov 10
2
ggplot2 - regression statistics how to display on plot
Hello -
So I am trying to use ggplot2 to show a linear regression between two variables, but I want to also show the fit of the line on the graph as well.
I am using ggplot2 for other graphics in what I am working on, so even though this would be a fairly easy thing to do in Excel, I would prefer to do it in R to keep my look and feel, and I think ggplot2 is just cooler.
Here is a sample
2011 Jul 10
1
Chebyshev Inequality — MVUE
Hello,
I was interested in trying to write an R script to calculate a UCL for a lognormal distribution using the Chebyshev Inequality — MVUE Approach (based on EPA’s guidance found in http://www.epa.gov/oswer/riskassessment/pdf/ucl.pdf). This looks like it should be straight forward, but I am need to calculate an MVUE for the population mean and an MVUE for the population variance, which requires
2012 Nov 16
1
Split data frame and create a new column
I need to split a data frame into 3 columns. The column I want to split
contains indices of lag (prefix L1 or L2 and suffix 01, 03, 04), station
name (shown in the sample data as capitalized G, P and S) and pollutant
name. Names with no ?L? prefix or 01/04 suffix are lag 0. Lag 01 is average
of lag 0 and 1, and 04 is average of 0 to 4 days. How can one do that in R?
I will ignore the other
2024 Apr 30
1
function import file csv Openair
Dear Evelina Ballato,
? Tue, 30 Apr 2024 10:36:32 +0000
Evelina Ballato <evelball at arpa.piemonte.it> ?????:
> In the Openair package it is possible to restore the import csv file
> function?
This question is best addressed to the maintainer of the package (see
the output of maintainer("openair")) if not to their GitHub issues at
2024 Apr 30
1
function import file csv Openair
In the Openair package it is possible to restore the import csv file function? it has been removed in the latest versions.
Infinitely grateful
Evelina Ballato
Evelina Ballato
Arpa Piemonte
Dipartimento Territoriale
Piemonte Nord Est - sede di Omegna
************************************************************************
Riservatezza/Confidentiality
Ai sensi del Regolamento UE 679/2016, del
2016 Jan 14
3
fechas
Estimados
En esta base de datos de variables clim?ticas, hay informaciones diarias, pero necesitamos las informaciones de ese a?o por semana. ?Se puede hacer eso en R? ?Podrian mostrarme un script? Y adem?s de algunas informaciones para profundizar en ese tema
Saludos cordiales
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URL:
2014 Sep 25
2
Campo Fecha y paquete openair
Estoy trabajando con el paquete openair y leyendo los datos desde un CSV.
Entre los campos que estoy levantando existe uno con el formato dd/mm/YYYY
hh:mm por ejemplo:
19/02/2014 12:42 pm
Cuando quiero consultar por fechas con las funciones del paquete openair
datoscont10<-selectByDate(dato$actualizado, start="01/03/2014",
end="09/09/2014")
me lista el siguiente mensaje:
2014 Sep 25
4
Campo Fecha y paquete openair
Eduardo,
Me parece que el problema es el locale para TIME y la interpretación de %p,
para no tener ese problema lo que tengo que hacer en mi caso es cambiar
LC_TIME:
> Sys.getlocale()
[1]
"LC_COLLATE=Spanish_Argentina.1252;LC_CTYPE=Spanish_Argentina.1252;LC_MONETARY=Spanish_Argentina.1252;LC_NUMERIC=C;LC_TIME=Spanish_Argentina.1252"
> Sys.setlocale("LC_TIME",
2012 Apr 19
1
SmoothTrend in OpenAir
I'm trying to plot smooth trend using smoothTrend in OpenAir but I'm having
problems.
I used the following code.
---------------------------------------------------------------------------------
#Set my working dir to the dir with my files
setwd("c:/R")
#Load the openair library
library(openair)
#Load the data
mydata <- read.table("MCNP-pH.csv", header=TRUE,
2011 Jun 27
3
Creating a Polar Plot with expanding points as radius increases
I'd like to create a polar plot similar to those created by the polarFreq
function in the openair package. However, this package seems to be specific
to wind speed and direction, and requires a "ws" (wind speed) and a "wd"
(wind direction) column. My data is unrelated to wind speed, but I'd like
to be able to get a plot that does what polarFreq's plots do; I'd
2017 Jun 01
4
errores con openair
Estimados como les va.
He tratado de profundizar sobre el paquete OPENAIR PARA MANEJO DE DATOS. Sin embargo, cada cosa que intento hacer, por muy pequeña que sea, me tira este error. En definitiva, no he podido hacer absolutamente nada¡¡
He probado de todo, pero ya me estoy aburriendo, a pesar que al parecer es una muy buena herramienta.
Saludos.
Error in as.POSIXct.default(x) :
do not know
2014 Sep 25
4
Campo Fecha y paquete openair
Sorry, la función por el formato que tienen tus fechas debe de ser
"dmy_hms()"...
Saludos,
Carlos Ortega
www.qualityexcellence.es
El 25 de septiembre de 2014, 18:14, Eduardo Bieñkowski <edukoski en gmail.com>
escribió:
> Si lo proceso con date<-ymd_hms(dato$actualizado) no me da error pero la
> transformación no es la correcta
>
> > head(dato$actualizado)
>
2012 May 04
0
latex, Hmisc with MikTeX 2.8 produced "n&missing&unique" output
Hi -
So when I run the following, I get a strange formatting output with MikTeX, and I am unsure if the behavior is due to R, Hmisc, or MikTeX or both:
dfr <- data.frame(x=rnorm(400),y=sample(c('male','female'),400,TRUE))
latex(describe(dfr))
What happens is that the x column is summarized in the output of latex correctly. Then the y summary ends up looking like:
2012 Oct 17
0
FW: Vacancy Announcement - Lead Statistician (Health), GS-1530-14
VR,
James
James T. Durant, MSPH, CIH
Statistics and Data Analysis Team (proposed)
Science Support Branch (proposed)
Division of Community Health Investigations (proposed)
US Agency for Toxic Substances and Disease Registry
Mailing Address:
4770 Buford Highway, MS F-62
Atlanta, Georgia 30341
Telephone:
770-488-0668 (office)
_____________________________________________
From: Lewis,