. You would have to with read.csv.
> >
> >
> > old_dir <- setwd("~/directory")
> > f1990 <- list.files(pattern = "^199.*\\.txt$")
> > r1990 <- lapply(f1990, read.table)
> > setwd(old_dir)
> >
> >
> > Hope thi
Hi R users,
I have multiple dataframes in a directory, and with the same postfix
".txt". Each dataframe is a gridded file with just values, but each value
represents one grid cell. There are many years, and each year has 12
months, so there are many such files. For each year, I want to read the
- data.frame(as.table(as.matrix(DF2)))
> > colnames(DF3) <- c("latitude", "longitude", "Precip")
> > DF3$latitude <- as.numeric(as.character(DF3$latitude))
> > DF3$longitude <- as.numeric(as.character(DF3$longitude))
>
> ----
0
>
>
> David L Carlson
> Department of Anthropology
> Texas A University
> College Station, TX 77843-4352
>
>
> -Original Message-
> From: R-help On Behalf Of Sarah Goslee
> Sent: Tuesday, November 13, 2018 8:16 AM
&
Hi R users,
I have a question about manipulating data. For example, I have DF1 as the
following, how to transform it to a gridded dataset DF2? In DF2, each value
Precip is an attribute of the corresponding grid cell. So DF2 is like a
spatial surface, and can be imported to ArcGIS. Thanks for your
I just figured this out, which seems to be a simple question. I just used
gsub("_temp.csv","","StationName1_temp.csv").
> Hi R users,
>
> I don't know how to extract certain words in strings. For example, if I
> have strings like the formats "StationName1_temp.csv",
> "StationName2_temp.csv",
Hi R users,
I don't know how to extract certain words in strings. For example, if I
have strings like the formats "StationName1_temp.csv",
"StationName2_temp.csv", etc. How to get strings like these "StationName1",
"StationName2", etc? That is to say, I want to exclude the keywords
"_temp.csv",
e that file in your current directory via your operating system?
>
> On September 17, 2018 11:53:22 PM PDT, lily li
> wrote:
> >Thanks, you are right that the file path is not correct. I just typed:
> >nc_open("file.nc"), and it gave the error above.
> >
> >
Hi all,
I am installing rgdal package in linux for R, and got the error below. I
typed: $ install.packages("rgdal", repos= "http://cran.us.r-project.org;)
What is the problem and how to correct it? Thanks for your kind help.
== print the error message here
xample of a file that yields this error. My best
> blind guess is that you have not given the name of an ncdf file to the
> function.
>
> On September 17, 2018 9:44:45 PM PDT, lily li wrote:
> >Hi R users,
> >
> >I have installed ncdf4 package in R from the linux termin
Hi R users,
I have installed ncdf4 package in R from the linux terminal, but have met
this problem when using nc_open to open a .nc file. What is the problem?
Any help would be appreciated.
Error in R_nc4_open: Is a directory
[[alternative HTML version deleted]]
I think it may be feasible to transform the dataset DF, so that the column
names lat_lon can be a surface, where the values locate at each surface.
But I don't know how to transform DF.
On Fri, Sep 14, 2018 at 10:02 AM, lily li wrote:
> Hi Petr,
>
> I have merged the data us
ues by suitable command(s) ?plot, ?ggplot
> 4. If you want more specific answer, please post more specific question,
> preferably with concise and clear example.
> 5. Avoid posting in HTML
>
> Cheers
> Petr
>
> > -Original Message-----
> > From: R-help On Behalf Of
Hi R users,
I have a question about plotting gridded data. I have the files separately,
but do not know how to combine them. For example, each txt file has daily
precipitation data at a specific grid cell, named pr_lat_lon.txt. How to
plot all txt files for one surface (which is rectangular in
Hi Jim,
Thanks. It works. I now have more complex problems. If at each blackcell,
there are two variables such as pop and mood. For each variable, there are
daily records in one year, so 365 records for pop and 365 records for mood.
The averaged values for the redcells should be daily records
1]]]$pop +
> blackcells[[close4[2]]]$pop + blackcells[[close4[3]]]$pop +
> blackcells[[close4[4]]]$pop)/4
> print(blackcells[[close4[1]]])
> print(blackcells[[close4[2]]])
> print(blackcells[[close4[3]]])
> print(blackcells[[close4[4]]])
> print(redcell)
>
> As you can see
rasterVis'
>
> > library(rasterVis)
>
> HTH,
> Eric
>
>
> On Thu, Mar 8, 2018 at 5:11 PM, lily li <chocol...@gmail.com> wrote:
>
>> Hi all,
>>
>> I ran the code:
>> > s <- stack(replicate(2, raster(matrix(runif(100), 10
>> >
r', 'RasterStackBrick', 'BasicRaster')"
what is the problem? Thanks.
On Thu, Mar 8, 2018 at 12:07 AM, lily li <chocol...@gmail.com> wrote:
> Hi all,
>
> I'm trying to add single points with known coordinates to a level plot,
> but could not find the proper answer. I got to know
Hi all,
I'm trying to add single points with known coordinates to a level plot, but
could not find the proper answer. I got to know that layer() function is
good for this, but I don't know which package is related to this function.
The source is here:
Hi Loris,
Thanks. I tried to update the R software and reinstalled the GDAL library.
It works now.
On Thu, Feb 15, 2018 at 11:49 PM, Loris Bennett <loris.benn...@fu-berlin.de>
wrote:
> Hi Lily,
>
> lily li <chocol...@gmail.com> writes:
>
> > Hi R users,
&g
Hi R users,
Could you help me to see this problem? I could now load "rgdal" even though
I downloaded the compressed folder. Thanks for your help.
Loading required package: sp
Error in dyn.load(file, DLLpath = DLLpath, ...) :
unable to load shared object
;ericjber...@gmail.com> wrote:
> If layer$z is a matrix and you want to reverse the order of the rows, you
> can do:
>
> n <- nrow(layer$z)
> layer$z <- layer$z[ n:1, ]
>
> HTH,
> Eric
>
>
> On Tue, Jan 16, 2018 at 8:43 AM, lily li <chocol...@gmail.com>
15, 2018 at 10:58 PM, lily li <chocol...@gmail.com> wrote:
> Hi Bert,
>
> I think you are correct that I can use levelplot, but I have a question
> about converting data. For example, the statement:
> levelplot(Z~X*Y), Z is row-wise from the lower left corner to the upper
ng an open mind is that people keep coming along and
> sticking things into it."
> -- Opus (aka Berkeley Breathed in his "Bloom County" comic strip )
>
> On Mon, Jan 15, 2018 at 4:54 PM, lily li <chocol...@gmail.com> wrote:
>
>> Hi Roman,
>>
>> T
uot;
> -- Opus (aka Berkeley Breathed in his "Bloom County" comic strip )
>
> On Mon, Jan 15, 2018 at 4:54 PM, lily li <chocol...@gmail.com> wrote:
>
>> Hi Roman,
>>
>> Thanks for your reply. For the spatial coordinates layer, I just have
>>
p://www.datacarpentry.org/R-spatial-raster-vector-
> lesson/10-vector-csv-to-shapefile-in-r/
>
>
> Cheers,
> Roman
>
> On Mon, Jan 15, 2018 at 11:22 PM, lily li <chocol...@gmail.com> wrote:
>
>> Hi users,
>>
>> I have no clear clue about plotting spatial dat
Hi users,
I have no clear clue about plotting spatial data. For example, I just have
a table with attribute values of each grid cell, such as elevation. Then I
have coordinates of the upper left corner in UTM, the number of rows and
columns, and grid cell size. How to create spatial plot of
project.org on behalf of istaz...@gmail.com> wrote:
>
> On Thu, Dec 14, 2017 at 1:58 PM, Berend Hasselman <b...@xs4all.nl>
> wrote:
> >
> >> On 14 Dec 2017, at 19:36, lily li <chocol...@gmail.com> wrote:
> >>
> >&
Thanks, Berend. I thought R can recognize the space automatically, such as
na.strings="", or sep=' '.
On Thu, Dec 14, 2017 at 11:58 AM, Berend Hasselman <b...@xs4all.nl> wrote:
>
> > On 14 Dec 2017, at 19:36, lily li <chocol...@gmail.com> wrote:
> >
>
Hi R users,
I have a question about reading from text files. The file has the structure
below:
TimeColumn1 Column2
01.01.2001-12:00:00
01.01.2001-24:00:0012 11
01.02.2001-12:00:0013 10
01.02.2001-24:00:0011
Hi R users,
I don't know if you have used taylor.diagram function. Why my diagram is
not like 1/4th of a round shape, but more flat, like 1/4th of an oval?
Thanks.
[[alternative HTML version deleted]]
__
R-help@r-project.org mailing list -- To
n Tue, Oct 10, 2017 at 2:41 PM, lily li <chocol...@gmail.com> wrote:
> Hi R users,
>
> I have a question about plotting. The following two datasets are an
> example. What I have in mind is like the attached figure, but just have two
> rows, top row is for DF1, bottom row is for
Hi R users,
I have a question about plotting. The following two datasets are an
example. What I have in mind is like the attached figure, but just have two
rows, top row is for DF1, bottom row is for DF2. The top and bottom rows,
have x-axis as var1, var2, var3, etc, while the y-axis represents
]
>
> ggplot(data=sub_test_df2, aes(x=v1,y=v2, colour = as.factor(ID))) +
> geom_point()+ theme_bw()+
> xlab('Variable 1')+ ylab('Variable 2')
>
> HTH
> Ulrik
>
> On Fri, 25 Aug 2017 at 21:38 lily li <chocol...@gmail.com> wrote:
>
>> Hi R users,
>
Hi R users,
I have some sets of variables and put them into one dataframe, like in the
following. How to choose a specific set of pareto front, such as 10 from
the current datasets (which contains more than 100 sets)? And how to show
the 10 points on one figure with different colors? I can put
In the lower right panel of R-studio interface, there is the "Export"
button. I saved as PDF from there directly, rather than using functions
On Sat, Aug 5, 2017 at 6:18 PM, Ismail SEZEN <sezenism...@gmail.com> wrote:
>
> > On 6 Aug 2017, at 03:01, lily li <chocol...
Hi R users,
I am using the plot() function, but have a problem. When saving as pdf
format, the ‰ sign in the x-axis label becomes (...) sign. I prefer to save
in pdf, as this format has a higher resolution than jpeg or other picture
formats. Could anyone tell me how to do then? Thanks.
Hi R users,
I got warning messages when installing the package, and I pasted the
messages below. I checked updates that my R-studio is already the newest
version. I don't know how to solve the problem. Thanks for your help.
> library(igraph)
Error in dyn.load(file, DLLpath = DLLpath, ...) :
It is working now. I don't know where's the problem. thanks for your help.
On Sun, Jul 23, 2017 at 12:33 PM, peter dalgaard <pda...@gmail.com> wrote:
>
> > On 23 Jul 2017, at 18:31 , Uwe Ligges <lig...@statistik.tu-dortmund.de>
> wrote:
> >
> >
> >
>
Hi R users,
I'm trying to install the package, but got the error and don't know how to
fix it. Can anyone help me? Thanks very much.
install.packages("smwrGraphs", repos=c("http://owi.usgs.gov/R",;
http://cran.us.r-project.org;), dependencies = TRUE)
Error in install.packages : Line starting '
, 2017 at 9:28 AM, lily li <chocol...@gmail.com> wrote:
> Hi Jim,
>
> For true color, I meant that the points in the figure do not correspond to
> the values from the dataframe. Also, why to use rainbow(9) here? And the
> legend is straight in the middle, is it possible to re
color<-factor(dfm$A)
> plot(dfm$B,dfm$C,pch=ifelse(dfm$DF==1,1,19),
> col=rainbow_colors[as.numeric(dfm$Acolor)])
> legend("bottom",legend=sort(unique(dfm$A)),
> fill=rainbow_colors)
> legend(25,35,c("DF=1","DF=2"),pch=c(1,19))
>
> Jim
>
>
Hi R users,
I still have the problem about plotting. I wanted to put the datasets on
one figure, x-axis represents values B, y-axis represents values C, while
different colors label column A. Each record uses a circle on the figure,
while hollow circles represent DF=1 and solid circles represent
ls=FALSE,col="red")
>
> The same code will work for a second data frame, except that you would
> use "points" instead of "plot" and change the color. You may also have
> to specify xlim and ylim in the first call to "plot" so that all
> values are
Hi R users,
I have a question about plotting. There is the dataframe below, while each
row represents a record. If I want to plot on a A-B plot, i.e., x-axis
represents A, while y-axis represents B values. However, I want to plot the
mean value from records 1-10 as one point, while the 10th and
of a C like
> for() loop should be avoided when possible, as it could be here.
>
> If I have made an error in understanding what you are doing, please do
> let us all know. I get it wrong from time to time.
>
> Cheers,
> Bert
>
> Bert Gunter
>
> "The trouble wi
Hi R users,
I have a question about adding a column for water year. The dataframe has
the structure below. But the wyear column just shows one year. Could anyone
help me with this problem? Thanks.
DF
year month day timeflow
1972 1 11972-01-01 5
1972
; pathetic excuses of nothings that should eat a bullet for their next meal
> instead of bull SHIT ( although I know they like the taste of shit) (its a
> favorite of ]r[ist subscribers )
>
> Show quoted text
>
> 15:04, "lily li" <chocol...@gmail.com> wrote:
> >
&
01", full.names = TRUE),
>> you get the full paths rather name just the file names, i.e. you don't
>> have to use file.path().
>>
>> /Henrik
>>
>> On Thu, Jun 29, 2017 at 12:04 PM, lily li <chocol...@gmail.com> wrote:
>> > Hi R users,
Hi R users,
I have a question about opening the txt files and putting them into a
matrix. The txt files are in the folder01, while they have the name
file.1.txt, file.2.txt, file.3.txt, etc. There are about 200 such text
files. Each txt file contains one value inside. When I tried to use the
code
I'm trying the different parameters, but don't know what the error is:
Error in nlsModel(formula, mf, start, wts) :
singular gradient matrix at initial parameter estimates
Thanks for any suggestions.
On Tue, Jun 20, 2017 at 7:37 PM, Don Cohen
wrote:
>
> If you
Thanks. I will do a trial first. Also, is it okay to have the datasets that
have only part of the cycle, or better to have equal or more than one
cycle? That is to say, I cannot have the complete datasets sometimes.
On Tue, Jun 20, 2017 at 7:37 PM, Don Cohen
wrote:
:
>
> plot(y)
> lines(supsmu(1:20,y))
> lines(0.6*cos((1:20)/3+0.6*pi)+17.2)
>
> Jim
>
>
> On Wed, Jun 21, 2017 at 9:17 AM, lily li <chocol...@gmail.com> wrote:
> > Hi R users,
> >
> > I have a question about fitting a cosine curve. I don't know
Hi R users,
I have a question about fitting a cosine curve. I don't know how to set the
approximate starting values. Besides, does the method work for sine curve
as well? Thanks.
Part of the dataset is in the following:
y=c(16.82, 16.72, 16.63, 16.47, 16.84, 16.25, 16.15, 16.83, 17.41, 17.67,
18/06/17 12:10, lily li wrote:
>
>> Hi R users,
>>
>> I have a question about adding uncertainty bars to stacked bar plots.
>>
>> DF:
>>year A B C Amin Amax Bmin Bmax Cmin Cmax
>> 2009 40 45 15 30 61 23 56 1
Hi R users,
I have a question about adding uncertainty bars to stacked bar plots.
DF:
year A B C Amin Amax Bmin Bmax Cmin Cmax
2009 40 45 15 30 61 23 56 14 17
2010 36 41 23 26 54 22 51 22 24
I use the code below:
e function like - sin, cos, log, exp...
>
> Cheers
> Petr
>
> > -Original Message-
> > From: R-help [mailto:r-help-boun...@r-project.org] On Behalf Of lily li
> > Sent: Thursday, June 15, 2017 1:28 AM
> > To: MacQueen, Don <macque...@llnl.gov>
> >
wrence Livermore National Laboratory
> 7000 East Ave., L-627
> Livermore, CA 94550
> 925-423-1062
>
>
> On 6/14/17, 3:40 PM, "R-help on behalf of lily li" <
> r-help-boun...@r-project.org on behalf of chocol...@gmail.com> wrote:
>
> Hi R users,
&g
Hi R users,
I have some data points (Xi, Yi), and they may follow such a pattern Yi =
cCOS(Xi) + d, how to find the c and d in R? which function to use? Also,
how to get the R2 and p value for this correlation? Thanks for any kind of
help.
[[alternative HTML version deleted]]
28
> # 4 1981 1 4 19 50 21
> # 5 1981 2 1 17 49 25
> # 6 1981 2 2 20 47 23
> # 7 1981 2 3 21 52 27
>
> The attached .png image file shows you how to send plain text emails to
>
ve the
> same number of rows.
>
> HTH
> Ulrik
>
>
>
> On Wed, 24 May 2017 at 19:30 lily li <chocol...@gmail.com> wrote:
>
>> Hi all,
>>
>> I have a question about combining two data frames. For example, there are
>> the two dataframes below,
Hi all,
I have a question about combining two data frames. For example, there are
the two dataframes below, with the same structure but different column
names and column lengths. How to add the values in DF2 to the end of DF1,
though the column names do not match? How to add more than two?
t; >> (filled with NA values), then specify the precise rows and columns on
> >> both the left and right hand sides of the assignment operator that
> >> will be altered. Luckily, this is pretty easy...just remember to use
> >> which() on the right hand side of the a
Hi R users,
I have a question about manipulating the dataframe. I want to create a new
dataframe, and to multiply rows with different seasons for different
constants.
DF
year month day product1 product2 product3
1981 1 1 18 5620
1981 1
as expected
>
>
>
> *From:* lily li [mailto:chocol...@gmail.com]
> *Sent:* Tuesday, May 09, 2017 11:13 AM
> *To:* Doran, Harold <hdo...@air.org>
> *Cc:* Charles Determan <cdeterma...@gmail.com>; R mailing list <
> r-help@r-project.org>
>
> *Subject:* Re
Yes, that means to control decimal numbers. For example, use round(2.3122,
digits=1), it gets 2.3
On Tue, May 9, 2017 at 9:11 AM, Doran, Harold <hdo...@air.org> wrote:
> ?round
>
>
>
>
>
> *From:* lily li [mailto:chocol...@gmail.com]
> *Sent:* Tuesday, May 09,
s,
> Charles
>
> On Tue, May 9, 2017 at 9:52 AM, lily li <chocol...@gmail.com> wrote:
>
>> I meant for each cell, it takes the average from other dataframes at the
>> same cell. I don't know how to deal with row names and col names though,
>> so
>> it has the
orm(100), 10, 10)
>
> }
>
>
>
> ### mean over all cells
>
> sapply(myData, function(x) mean(x))
>
>
>
> ### mean over all columns
>
> sapply(myData, function(x) colMeans(x))
>
>
>
>
>
>
>
>
>
>
>
> *From:*
un...@r-project.org] On Behalf Of lily li
> Sent: Tuesday, May 09, 2017 10:39 AM
> To: R mailing list <r-help@r-project.org>
> Subject: [R] About calculating average values from several matrices
>
> Hi R users,
>
> I have a question about manipulating the data.
> For ex
Hi R users,
I have a question about manipulating the data.
For example, there are several such data frames or matrices, and I want to
calculate the average value from all the data frames or matrices. How to do
it? Also, should I convert them to data frame or matrix first? Right now,
when I use
- Bert
>
>
> Bert Gunter
>
> "The trouble with having an open mind is that people keep coming along
> and sticking things into it."
> -- Opus (aka Berkeley Breathed in his "Bloom County" comic strip )
>
>
> On Sat, Mar 11, 2017 at 11:14 AM, lily li
gt;
>
> Bert Gunter
>
> "The trouble with having an open mind is that people keep coming along
> and sticking things into it."
> -- Opus (aka Berkeley Breathed in his "Bloom County" comic strip )
>
>
> On Sat, Mar 11, 2017 at 10:50 AM, lily li <cho
(0))
1: `$<-`(`*tmp*`, "Z", value = numeric(0))
I don't know what is the problem, as it works in the Console panel but not
in the top left panel. Thanks for your help.
On Sat, Mar 11, 2017 at 11:50 AM, lily li <chocol...@gmail.com> wrote:
> Hi R users,
>
> I have a pr
Hi R users,
I have a problem about using R studio. For example, there is a dataframe
that has many columns. I want to aggregated column X and column Y into
column Z. Column Z does not exist before the aggregation. I use the code
below:
df$Z = df$X + df$Y
However, it does not work in the top left
ng an open mind is that people keep coming along
> and sticking things into it."
> -- Opus (aka Berkeley Breathed in his "Bloom County" comic strip )
>
>
> On Tue, Mar 7, 2017 at 10:45 AM, lily li <chocol...@gmail.com> wrote:
> > Hi R users,
> >
Or if there is another way to get '', 'mm', and 'dd' from time variable
'dd-mm-'? Thanks very much.
On Tue, Mar 7, 2017 at 11:45 AM, lily li <chocol...@gmail.com> wrote:
> Hi R users,
>
> I'd like to ask that where to find the 'lubridate' package for Mac Sierra?
>
Hi R users,
I'd like to ask that where to find the 'lubridate' package for Mac Sierra?
I downloaded one version for OS X Mavericks binaries, but it does not work.
The error message is as below:
> install.packages("~/Downloads/lubridate_1.6.0.tar.gz", repos = NULL, type
= "source")
ERROR:
s.Date(paste(df.count.mon$year, df.count.mon$mon,1),
> '%Y %m %d')
> df.count.mon
>count year mon time
> 1 22 2014 1 2014-01-01
> 2 12 2014 2 2014-02-01
> ...
> You will get values, but I don't think they are the ones you want.
>
> Jim
>
> On Th
Hi R users,
I have a dataframe, with year, month, day, and other variables. I wanted to
calculated monthly values of the variables. For example, there is one
variable called 'count'. I use the code below to convert daily data to
monthly data.
df.count.mon = aggregate(count ~ year+month, data=
Hi R users,
I'm trying to open netcdf files in R. Each nc file has daily climate
measurements for a whole year, covering the whole US. How to limit the file
to a specific rectangle? Thanks.
[[alternative HTML version deleted]]
__
01, 5); for (i in 1:1001) tmp[i,] <-
> 1:5})
>user system elapsed
> 0.001 0.000 0.001
> > dim(tmp)
> [1] 10015
>
> On Fri, Jan 6, 2017 at 11:46 PM, lily li <chocol...@gmail.com> wrote:
> > Hi Rui,
> >
> > Thanks for your reply. Ye
gt; }
>
> nrow(pre.mat) # should be 50
>
>
> Can you give us an example that doesn't work?
>
> Rui Barradas
>
>
> Em 06-01-2017 18:00, lily li escreveu:
>
>> Hi R users,
>>
>> I have a question about filling a dataframe in R using a for loo
Hi R users,
I have a question about filling a dataframe in R using a for loop.
I created an empty dataframe first and then filled it, using the code:
pre.mat = data.frame()
for(i in 1:10){
mat.temp = data.frame(some values filled in)
pre.mat = rbind(pre.mat, mat.temp)
}
However, the
Sorry for the emails. I just checked and the problem is still there. Is
there a proper way to reformat the decimal places, such as three or four
decimal places? Thanks.
If maintain four decimal places, the numbers are: 1.2000, 1.3100, 1.4000,
etc.
On Thu, Jan 5, 2017 at 10:46 PM, lily li <cho
I found that the last column is the digits 2.00, so the problem is solved.
On Thu, Jan 5, 2017 at 10:42 PM, lily li <chocol...@gmail.com> wrote:
> Hi R users,
>
> I'm trying to concatenate two strings, while each string has numbers.
> For example, strings1 = c(1.2, 1.
Hi R users,
I'm trying to concatenate two strings, while each string has numbers.
For example, strings1 = c(1.2, 1.31, 1.4, 1.51, etc), strings2= c(2.1,
2.22, 2.3, 2.44, etc). I want to have all decimals for the two strings,
such as: strings1= c(1.20, 1.31, 1.40, 1.51, etc), string2 = c(2.10,
Sorry, the problem has been solved. I found that strptime is a good
function for this.
DF$time2 = strptime(DF$time, format='%Y-%m-%d)
On Sat, Dec 31, 2016 at 11:02 AM, lily li <chocol...@gmail.com> wrote:
> I tried it, but it doesn't work. The time column is blank then.
> DF$time =
I tried it, but it doesn't work. The time column is blank then.
DF$time = substring(DF$time, first=as.Date('1999-01-01),
last=as.Date('2005-12-30'))
On Sat, Dec 31, 2016 at 10:52 AM, David Winsemius <dwinsem...@comcast.net>
wrote:
>
> > On Dec 31, 2016, at 9:26 AM, lily li <c
unty" comic strip )
>
>
> On Sat, Dec 31, 2016 at 9:26 AM, lily li <chocol...@gmail.com> wrote:
> > Hi all,
> >
> > Thanks for your help. Now I can convert data to the format "-mm-dd
> > hh:mm:ss", but how to convert it to "-mm-dd&q
ds
>
> Duncan
>
> Duncan Mackay
> Department of Agronomy and Soil Science
> University of New England
> Armidale NSW 2351
> Email: home: mac...@northnet.com.au
>
> -Original Message-
> From: R-help [mailto:r-help-boun...@r-project.org] On Behalf Of lily li
>
t 11:23 AM, Rui Barradas <ruipbarra...@sapo.pt> wrote:
> Hello,
>
> Have you tried
>
> df$date <- as.POSIXct(dat$date, format = "%m/%d/%Y-%H:%M:%S")
>
> ?
>
> Hope this helps,
>
> Rui Barradas
>
>
>
> Em 30-12-2016 17:40, lily li escre
Hi R users,
I'm trying to read in data, and then plot time series data. However, I have
some problems. In my dataset, the first column represents time, and in the
format:
mm/dd/-hr:min:sec; For example, 10/01/1995-00:00:00,
10/01/1995-06:00:00, etc.
df:
date
Hi R users,
I'm trying to manipulate dataset, but met some difficulties.
df
year month flow
2006 33.5
2006 43.8
2006 521
2006 632
2007 34.1
2007 44.4
...
I want to calculate total flow for each year, and use the code
do, not how you want to do it.
>
> On Sat, Nov 26, 2016 at 11:11 AM, lily li <chocol...@gmail.com> wrote:
>
>> Hi R users,
>>
>> I'm trying to manipulate a dataframe and have some difficulties.
>>
>> The original dataset is like this:
>>
>>
Hi R users,
I'm trying to manipulate a dataframe and have some difficulties.
The original dataset is like this:
DF
year month total id note
2000 1 98GA 1
2001 1100 GA 1
2002 2 99GA 1
2002 2 80GB 1
...
2012 1
Hi R users,
In the current directory, there are several folders (such as fold1, fold2,
fold3, etc.), while each folder includes the same named files, such as
file1.txt, file2.txt, file3.txt, etc. The structures of each folder and
each file are the same, but with different values. I want to read
Hi R users,
I'm wondering why the values changed when I try to transform factors into
numerics.
For example, for a data frame DF, there is one column called precipitation,
which is usually lower than 100mm. But this column is factor when I read in
the data. When transform to numeric values, some
My apologize, it has been solved. Just include w inside of select, such as:
select = c(w, x, y)
On Fri, Oct 28, 2016 at 12:06 PM, lily li <chocol...@gmail.com> wrote:
> Hi R users,
>
> I have the dataframe as below:
>
> w=c(5,6,7,8)
> x=c(1,2,3,4)
> y=c(1,2,3)
> le
Hi R users,
I have the dataframe as below:
w=c(5,6,7,8)
x=c(1,2,3,4)
y=c(1,2,3)
length(y)=4
z=data.frame(w,x,y)
z$mean1 <- rowMeans(subset(z, select = c(x, y)), na.rm = T)
z$mean2 <- rowMeans(subset(z, select = c(x, y)), na.rm=F)
w x y mean1 mean2
1 5 1 1 1 1
2 6 2 2 2 2
3
Hi R users,
Do any of you have any experience about converting binary files to ascii or
txt files in R? Thanks a lot for your help.
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