- Forwarded Message - From: PIKAL Petr To:
azam jaafari Cc: r-help mailing list
Sent: Wednesday, December 16, 2020, 3:39:06 PM
GMT+3:30Subject: RE: [R] space between bars of a group in ggplot2
Hi,
Keep your emails on the list, please.
here are some artificial data
dput(dat
Hello Dear
I want to make a barplot for groups with three repetitions and same values.
dataset is like this:
groups: a b
c
value: 1.2, 1.2, 1.2 2.5, 2.5,2.5
Condition: sat, sat, sat,
Hello everybody
I try to fit a neural network on my data by using package 'neuralnet' or
'nnet'.
I did it several times but I got an unexpected answer,
this is my code (num.obs=100):
(
library('nnet')
y-data.frame(data$CU) (y is cu concentration)
Hello All
I want to convert a scatter plot to a continuous contour plot. I have x as a
variable and y as another variable.
is there any package for this?
can anybody halp me?
Thanks
On Sun, 2/23/14, r-help-requ...@r-project.org
Dear All
I want to convert a scatter plot to a continuous contour plot. I have x as a
variable and y as another variable.
is there any package for this?
can anybody halp me?
Thanks
Azam
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R-help@r-project.org mailing list
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and
Hi
I want to make a grid map using diversity indices. I have a soil grid map with
7 class in r.
how can I make a diversity map based on soil map in r? I found something for
calculation diversity in a table (.csv).
Thanks
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Hi list
I want to define a moving window based on ferquency in a grid file.
is there a package for this? I found packages for moving window mean, median or
quantile.
thanks
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R-help@r-project.org
Hi
I have a problem for saving grid file in R. I want to save a grid file as
tif.
I write this: writeGDAL(predict.grid, 'predict.tif')
after running, I don't recieve any error. But when I want to open the
'file.tif', it doesn't open.
for example in paint program: I recieve this: Paint
Hi
I computed probability in each cell.
I have:
[99883,] -0.0062412957690
[99884,] -0.0062412957690
[99885,] -0.0062412957690
[99886,] -0.0062412957690
[99887,] -0.0062412957690
[99888,] -0.0062412957690
[99889,] 0.9909126638948
[99890,] 0.9909126638948
[99891,] 0.9909126638948
Thank you Petr
It work.
Now I have a matrix 970*960. If I want to convert to spatial grid (each pixel
has x and y coordinate).
How can I do?
Thanks
From: Petr PIKAL petr.pi...@precheza.cz
To: azam jaafari azamjaaf...@yahoo.com
Cc: R-help r-help@r-project.org
Sent: Thursday, September
...@precheza.cz
To: azam jaafari azamjaaf...@yahoo.com
Cc: R-help r-help@r-project.org
Sent: Thursday, September 1, 2011 10:22 AM
Subject: Re: [R] convert to grid file
Hi
Thank you Petr
It work.
Now I have a matrix 970*960. If I want to convert to spatial grid (each
pixel has x and y
Hi
I used neuralnet for predciton new covarites. Ir give me the predictions as
matrix 1*, . I want to convert the predictions to grid map.
Please help me
Thank you so much
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R-help@r-project.org
Hello all
I have a geology map that has three level, bellow
-geology
lithology landscape landform
landform level is used as covariate (with codes=1,2,3,4,5) for training of
neural network, but this level has missing data as NA.
I want to replace the missing data of landform level
Dear All
I trained a neural network for 200 data and I did prediction for a grid file
(e.g. 100 points) such as below:
snn-predict(nn, newdata=data.frame(wetness=wetnessgrid$band1,
ndvi=ndvigrid$band1))
the pixels of snn is same with wetnessgrid or ndvigrid
I want to convert
Dear All
I trained a neural network for 200 data and I did prediction for a grid file
(e.g. 100 points) such as below:
snn-predict(nn, newdata=data.frame(wetness=wetnessgrid$band1,
ndvi=ndvigrid$band1))
the pixels of snn is same with wetnessgrid or ndvigrid
I want to convert this
Dear All
I want to import the vector file ( .shp) to R. I could import the file by
rgdal package before, by following:
geology-readOGR('C:/geology//saga/geo.geom','finalgeology')
but now there is an error:
Error in ogrInfo(dsn = dsn, layer = layer, input_field_name_encoding =
Hi
I want to do boosted regression(classification) tree for categorical response
(with 7 levels). Can I do this by GBM package?
please help me?
Thanks alot
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R-help@r-project.org mailing
Hi
I want to draw a plot from observed and predicted data and also shows threshold
and data before threshold are identified with different color from data after
threshold.
Suppose:
abserved data are 0 or 1
predicted data= 0 to 1
threshold=0.5
Thanks alot
[[alternative
Hello
I have questions about gbm package. It seems we have to devide data to two
part (training set and test set) for first.
1- trainig set for running of gbm function
2- test set for gbm.perf
is it rigth?
I have 123 sample that I devided 100 for trainig and 23 for test.
So,
please help me
again I have a problem.
I want to do cross-validation for multinomial log. reg. I have a response
variabe with 7 levels (Z((a,b,c,d,e,f,g)) and 4 predictor(1 classifier and 3
continuous). I did:
#data with 100 observations
library('bootstrap')
x-matrix(c(data$H,
I applied bootpred for multinomial logistic reg. (with nnet package). I used
same as theta.fit and theta.predict of R for my data. but give me error. Can I
do this with
response vriable;7 levels
predictor variables:5 (1 classifier, 4 continuous)?
Thanks alot
Azam
Is it incorrect?
Azam
--- On Wed, 6/9/10, Uwe Ligges lig...@statistik.tu-dortmund.de wrote:
From: Uwe Ligges lig...@statistik.tu-dortmund.de
Subject: Re: [R] bootpred for multinomial
To: azam jaafari azamjaaf...@yahoo.com
Cc: R-help r-help@r-project.org
Date: Wednesday, June 9, 2010, 5:46
Hi
I want to do leave-one-out cross-validation for multinomial logistic regression
in R. I did multinomial logistic reg. by package nnet in R. How I do
validation? by which function?
response variable has 7 levels
please help me
Thanks alot
Azam
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Hi
I carried out multinomial logistic reg. in R by package 'nnet'.
response variable has 7 level and predictors (4 variable) are classifier and
continuous.
I want to present results as figur but I can't. also, I read R example but I
have cell grid and I can't define data.frame.
please help
Dear All
Â
Pleas help me to increase the memory in R.
Â
In order increase memory, I read the FAQ and follow the instruction as below
Â
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Close R, then right-click on your R program icon (the icon on your desktop or
in your programs directory). Select ``Properties'', and then select the
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[31] 1206044253 1201793367 956757054 350214264 -1324711077
.
.
.
please help me
Thanks alot
--- On Wed, 5/26/10, Joris Meys jorism...@gmail.com wrote:
From: Joris Meys jorism...@gmail.com
Subject: Re: [R] validation logistic regression
To: azam jaafari azamjaaf...@yahoo.com
Cc: r
Meys jorism...@gmail.com
Subject: Re: [R] validation logistic regression
To: azam jaafari azamjaaf...@yahoo.com
Cc: r-help@r-project.org
Date: Wednesday, May 26, 2010, 5:00 AM
Hi,
first of all, you shouldn't backtransform your prediction, use the option
type=response instead :
salichpred-predict
Hi
I did validation for prediction by logistic regression according to following:
validationsize - 23
set.seed(1)
random-runif(123)
order(random)
nrprofilesinsample-sort(order(random)[1:100])
profilesample - data[nrprofilesinsample,]
profilevalidation - data[-nrprofilesinsample,]
jorism...@gmail.com
Subject: Re: [R] validation logistic regression
To: azam jaafari azamjaaf...@yahoo.com
Cc: r-help@r-project.org
Date: Wednesday, May 26, 2010, 5:00 AM
Hi,
first of all, you shouldn't backtransform your prediction, use the option
type=response instead :
salichpred-predict
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