Displaying 20 results from an estimated 6000 matches similar to: "specify axis range"
2010 Sep 03
1
change the type of lines and colours in interaction.plot
Dear all,
I want to plot 8 chemical variables in the same plot. I have used the interaction.plot command:
> interaction.plot(speclong$Date,speclong$time2,speclong$outcome,xaxt="n",type="l",pch=20,xlab="", log="y", ylab="Concentration (ug/L)",trace.label="",col=rainbow(8))
However, what it gives me is dotted lines and the colours are
2011 Mar 13
3
how to change the margins of a plot area
Dear all,
I am ploting two boxplot of two chemical variables using the format
boxplot(Alkalinity, logAlkalinity, log="y", col=c("lightblue"), lwd=0.6, boxwex=0.3)
However when I plot like this, the distance between the two boxplots is very big and as well the distance of each boxplot from the plot area, left and right. How can I minimise that distance between the boxplots and
2008 Nov 17
3
Time plots
Dear all,
I want to do some time plots and actually the dates are in the format of dd/mm/yyyy. So first I input my dataframe in R in a csv form. What I do is
DF<-read.csv("C:/Documents and Settings/DF.csv")
DATE<-as.Date(DATE, "%d/%m/%Y") # to tell R that DATE column is indeed dates
with(DF, plot(DATE,pH))
Until here it works fine, but I have the graph plotting
2008 Nov 13
1
Boxplots with different variables and different ranges in R
Dear all,
I am trying to make boxplots in one diagram but it is not working. Actually I have a large dataset, around 35 water quality variables with different units and of course in different ranges (some are orders of magnitude bigger than others). I want to produce one diagram with all the boxplots of the variables of my dataset.
I tried these series of commands:
>oldpar <-
2011 Mar 15
3
fitting a distribution to a ecdf plot
Dear all,
I need to plot an cumulative distribution plot of a variable and then to fit a distribution to that, probably a weibull or lognormal.
I have plotted the ecdf as
> plot(ecdf(x))
but I haven't managed to fit the distribution. I have as well attached the data.
I would appreciate if you could help me on that.
Thank you.
Kind regards
Maria
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2012 Jan 04
0
interaction plot and x axis
Dear all
I am trying to make an interaction plot among 6 variables; e.g. PH to be in the x axis and the rest 5 variables in the y axis. The code that I am using is the below:
The name of my file is e.g. spec so
> spec<-read.csv("spec.csv")
>head (spec)
>str(spec)
>names<-names(spec)[2:6]
>speclong <- reshape(spec, idvar = "id", varying =
2009 Oct 28
2
superscript in ylab
Dear all
I am doing some plots in R.
I want to have as label in y-axis Temperature (oC). I have used ylab=expression(paste({Temperature} ^o*C)) but what I get is TemperatureoC.
How can I have a space between Temperature and the units and also the units to be in brackets?
Many thanks
Maria
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2008 Nov 12
2
Enquiries about time plots in R
Dear all,
My name is Maria Lathouri and I am currently doing a PhD at Imperial College of London about time series of environmental variables in surface waters. I am trying to do some time plots with R but it seems that it is not working.
The problem is that the time is not regular, for example, a small dataset can be seen below:
Date pH
1/02/1998 5.5
5/03/1998 5
2010 Aug 03
2
subset based on column names and then subset based on the inverse (grep?, or...)
I would like to be able to grab x and y columns out of a dataframe and
then grab all of the columns that are not equal to x or y. I am sure
that I am missing something easy.
ftbr_UTM_downstream <- (structure(list(site =
c("Jennie_Creek_Main_Stem", "Wolf_Pit_Creek_Main_Stem",
"Little_Rockfish_Main_Stem_North", "Big_Muddy_Creek_Main_Stem",
2011 Mar 31
2
Linear Model with curve fitting parameter?
I have a model Q=K*A*(R^r)*(S^s)
A, R, and S are data I have and K is a curve fitting parameter. I
have linearized as
log(Q)=log(K)+log(A)+r*log(R)+s*log(S)
I have taken the log of the data that I have and this is the model
formula without the K part
lm(Q~offset(A)+R+S, data=x)
What is the formula that I should use?
Thanks for all of your help. I can provide a subset of data if necessary.
2013 May 01
3
Chron format question h:m not working
R 2.12.2 on Scientific Linux 6.4
#works
chron(times.="15:00:00", format=c(times="h:m:s"))
#doesn't work
chron(times.="15:00", format=c(times="h:m"))
From chron Manual:
The times format can be any permutation of "h", "m", and "s" separated
by any one non-special character. The default is "h:m:s".
what am I
2017 Nov 20
3
Σχετ: change colour in barplot
Dear all,?
I am really sorry for this. I have attached the script and a .csv file with an example.?
Hope this will help.
Many thanks,Maria
???? 11:53 ?.?. ???????, 20 ????????? 2017, ?/? Duncan Murdoch <murdoch.duncan at gmail.com> ??????:
On 20/11/2017 6:38 AM, Maria Lathouri via R-help wrote:
>? Dear all
> I know that it is a very simple question but it seems that I cannot
2011 Feb 17
2
barplot with errorbars
Dear all
I have six variables of the average metal concentrations
Var1 4.77
Var2 23.5
Var3 5.2
Var4 12.3
Var5 42.1
Var6 121.2
I want to plot them as a barplot with error bars. Could you help me?
Cheers
Maria
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2011 Apr 16
2
(no subject)
I have just upgraded to R 2.13 and have library(ggplot2) in my
.Rprofile (among other things). when i start R I get an error
message. Has something in the start up scripts changed? Is there a
better way to specify the library calls in .Rprofile? Thanks for all
of the help in advance.
Error:
Loading required package: grid
Loading required package: proto
Error in rename(x, .base_to_ggplot) :
2010 Sep 08
1
problem with max in a function
s <- 1.00
max(s)
returns 1
is there anyway that I can get it to return 1.00. I am using the
results of this max statement in a grep statement and it returns the
wrong numbers, I will provide more information and code if it would
make more sense in context.
--
Stephen Sefick
____________________________________
| Auburn University? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?? |
| Department of
2012 Jul 18
1
ggplot2 qplot pch not working anymore
Is there a way to use a continuous variable to pch in qplot? I believe
this worked in previous version. I need to specify certain values of a
shape for particular points so that multiple graphs all show the same
shapes for the same streams. I have gone to the original data and added
a pch column that I would like to use to specify the shapes to pch in
qplot. Any help would be greatly
2010 Jul 30
4
Programming Statistical Functions
Hello,
I'm new in R. I'm meteorological modeller and i will calculate some
statistics for my model results.
These statistis are the follow:
ANB: Average Normalized Absolute BIAS
MNB: Mean Normalized BIAS
MNE: Mean Normalised Error
STDE: Standard Deviation of Error
FB: Fractional BIAS
MG: Geometric Mean BIAS
VG: Geometric Variance
SKVAR: Skill Variance
RMSE: Root Mean Square Error
NMSE:
2012 Nov 16
2
source file on startup question - why does an old version of a function show up? ggplot or R?
All,
1. I will try and make this clear and concise. Please let me know any
information that would be helpful in figuring out this problem (I don't
know the relevant information to post). I am on linux- see below for
session information.
2. Problem:
working directory: home
an old version of a function is sourced into the R session and doesn't work
working directory: Desktop
the
2011 Feb 09
3
add error bars in a plot
Dear all
I have a dataset of how metal concentrations change through time. I have made a plot of date versus metal concentration. However I want to add error bars in the plot.
Could you help me?
Thanks
Maria
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2009 Sep 28
2
Trendline and R square value
Hi
I would like to display the trendline and the R-square value in a xy scatter in R. For example if I want to plot f vs g I add the trendline using the commands below
>library(quantreg)
>plot(f,g)
>abline(rq(g~f))
however I don't know how to display the R2 in the graph.
Thank you in advance.
Kind regards
Maria
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