Re: [R] timeseries plot
Hello, YearERISSRIFTRIDFSRIIFSRITRISRIPSRIERI2 199540.1829.4841.4635.9835.5448.1579.5 11.1526.50120923 199642.9642929.144.0139.3130.4247.5179.78 30.6235.83816143 199744.8585724.4844.9247.3835.6154.2781.89 25.4635.83816143 199847.4985727.7347.4350.0530.7357.2181.51 37.8335.83816143 199948.7471424.9950.8356.9836.3956.8483.58 31.6235.83816143 200050.9336.0547.9355.5839.4954.4783.82 39.1735.83816143 200151.2085737.8845.850.5842.6457.4185.82 38.3335.83816143 200253.7933.6152.4952.8649.9364.2787.19 36.1835.83816143 200361.3585730.8758.1770.363.0172.2586.5 48.4135.83816143 200460.2085730.8563.0960.9462.9876.8386.33 40.4435.83816143 200563.4528635.4464.8366.1759.8876.5489.83 51.4835.83816143 200665.1042934.569.7457.3259.1382.0498.46 54.5435.83816143 This is the dataset. for research i'm applying earth function on the dataset. the code is given below. the dataset:HCMecoref i want to plot prdHCMeco. but as the dataset is divided into training and testing sets, it only plots for testing data. i've refered ur reply. still having problem. and yes, i've refered ?ts.plot too. tr.ecoref-sample(1:nrow(HCMecoref), 0.8*nrow(HCMecoref)) tst.ecoref- (1:nrow(HCMecoref))[-tr.ecoref] HCMecoModel-earth(ERI~SSRI+FTRI+DFSRI+IFSRI+TRI+SRI+PSRI+ERI2,data=HCMecoref[tr.ecoref,]) prdHCMeco-predict(HCMecoModel, newdata=HCMecoref[tst.ecoref,]) #e2HCM-HCMecoref$ERI[tst.ecoref] #RecoHCM-(1-sum((e2HCM - prdHCMeco)^2)/sum((e2HCM-mean(e2HCM))^2)) #print(RecoHCM) ts_ecoref-ts(data=prdHCMeco,...) plot(ts_ecoref) how to plot training dataset and testing dataset together in this case??? Thanks Vibha. On Fri, Apr 2, 2010 at 7:12 PM, Gabor Grothendieck ggrothendi...@gmail.comwrote: Here are a few ways: Try this: set.seed(123) TS - ts(1:25 + rnorm(25)) tt - time(TS) tt.pred - end(tt)[1] + 1:10 both - ts(c(TS, predict(lm(TS ~ tt), list(tt = tt.pred ts.plot(both, TS, gpars = list(type = o, col = 2:1, pch = 20)) and read ?ts, ?start, ?ts.plot and next time please provide some sample data using dput. See last line to every message and the posting guide. On Fri, Apr 2, 2010 at 8:14 AM, vibha patel vibhapatel...@gmail.com wrote: Hello, I am using plot( ) function to plot time-series. it takes time-series object as an argument but i want to plot predicted data with training set, to compare them. is there any function available? Vibha [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] what is the significance of RSq in earth function??
Hello, I'm using earth function for Multivariate Adaptive Regression splines. what is the significance of RSq in earth function?? following's the code. printed value is of RSq. tr.wage-sample(1:nrow(HCMwage), 0.8*nrow(HCMwage)) tst.wage- (1:nrow(HCMwage))[-tr.wage] HCMwageModel-earth(V2~V3+V4+V5+V6+V7+V8+V9+V10+V11+V12+W,data=HCMwage[tr.wage,]) prdHCMwage-predict(HCMwageModel, newdata=HCMwage[tst.wage,]) wg2HCM-HCMwage$V2[tst.wage] RwageHCM-(1-sum((wg2HCM - prdHCMwage)^2)/sum((wg2HCM-mean(wg2HCM))^2)) print(RwageHCM) [1] 0.3204129 Thanks and Regards, Vibha [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] timeseries plot
Hello, I am using plot( ) function to plot time-series. it takes time-series object as an argument but i want to plot predicted data with training set, to compare them. is there any function available? Vibha [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] fitness of regression tree: how to measure???
Hello, I'm using rpart function for creating regression trees. now how to measure the fitness of regression tree??? thanks n Regards, Vibha [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] time series datasets
Hello, I am searching large multivariate time series datasets to use with R. Can any one help me??? Regards, Vibha [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] package earth - forward pass: out of memory error, how to resolve this?
Hello, while using earth function, I'm getting the out of memory error: the dataset is too small(dimension is displayed in code). how to resole this error? tr.sub1 - sample(1:nrow(HCMauto), .8 * nrow(HCMauto)) tst.sub1 - (1:nrow(HCMauto))[-tr.sub1] HCMm1 - earth(V1 ~ ., data = HCMauto[tr.sub1, ]) Error in forward.pass(x, y, standardized.weights, scale.y, trace, penalty, : Out of memory (could not allocate 2017.29 MBytes) dim(HCMauto) [1] 85 10 dim(HCMauto[tr.sub1,]) [1] 68 10 Thanks. Vibha [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] how to measure accuracy of regression tree?
Hello, for constructing regression tree, I am using rpart function. now after dividing dataset in to training and testing, I'm using predict for forecasting. how to measure accuracy of the predicted data? Thanks and Regards, Vibha. [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] how to solve error in precict( ) while using with rpart?
Hello,
I am working with rpart function but geting some error in prediction.
the same code works fine with iris dataset.
but applying other dataset it doesn't work.
sample code is given for reference.
acc_model-rpart(V1~V2+V3+V4+V5+V6+V7+V8, data=accEx.train)
plotcp(acc_model)
acc_find_cp-(acc_model$cptable)[,CP][which.min(acc_model$cptable[,xerror])]
acc_prune_model-prune(acc_model,acc_find_cp)
acc_predict_tree-predict(acc_prune_model,newdata=accEx.test,
type=class)
Error in predict.rpart(acc_prune_model, newdata = accEx.test, type =
class) :
Invalid prediction for rpart object
#conf.mat
#function(true, new)
{
t - table(true, new)
s - sum(t)
acc - round((sum(diag(t)))/s, 2)
res - list(conf = t, accuracy = acc)
}
# I thought the Error is in match.arg(type) :
# 'arg' should be one of vector, prob, class, matrix
# accEx.test # V1 is response V2 to V8 are predictors
V1 V2V3 V4 V5V6 V7 V8
1 3.66356 7.74414 -4.4 4.2 0.0 18.0 19 116
2 3.04452 8.03398 -5.7 4.8 -0.3 69.1 9 506
3 3.71357 4.70048 -13.5 4.3 0.2 80.0 3 95
4 2.9 7.52510 1.4 3.0 0.1 177.0 22 161
5 4.06044 7.76260 4.1 5.6 1.1 287.0 7 80
6 3.6 7.88683 5.8 2.3 -0.1 200.0 9 33
7 3.33220 7.81521 2.7 1.9 0.4 228.0 7 129
8 3.36730 7.9 7.1 8.9 0.2 220.0 15 155
9 2.07944 6.89163 4.1 2.0 0.1 183.0 9 132
10 1.94591 7.67740 1.1 5.2 0.1 43.1 10 480
..
..
..
acc_predict_tree-predict(acc_prune_model,newdata=accEx.test,
type=vector)
acc_conf-conf.mat(accEx.train,acc_predict_tree)
Error in sort.list(unique.default(x), na.last = TRUE) :
'x' must be atomic for 'sort.list'
Have you called 'sort' on a list?
how to solve this problem?
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
[R] how to use node info generated by rpart in mars?
I am working on rpart, mars and earth. they all work fine individually. but i want to use node information generated by rpart in earth or mars. (mars is sensitive to outliers. CART deals effectively with outliers.) is there any way to perform this? Thanks. [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] how to use node info generated by rpart in mars?
I am working on rpart, mars and earth. they all work fine individually. but i want to use node information generated by rpart in earth or mars. (mars is sensitive to outliers. CART deals effectively with outliers.) is there any way to perform this? Thanks. [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
