70 <strong>np</strong>plregperspective=FALSE,plot.errors.method="bootstrap",plot.errors.boot.num=25,plot.behavior="plot-data",gradients=TRUE)# Now grab object that <strong>np</strong>plot() plotted on the screen. First, take the# output, lower error bound and upper error bound... note that gradients# are stored in objects rg1, rg2 etc.grad.eval
<strong>np</strong>plreg 71## S3 method for class 'call':<strong>np</strong>plreg(bws, ...)## S3 method for class 'plbandwidth':<strong>np</strong>plreg(bws,txdat = stop("training data txdat missing"),tydat = stop("training data tydat missing"),tzdat = stop("training data tzdat missing"),exdat,eydat,ezdat,residuals = FALSE,...)Argumentsbwsa bandwidth specification. This can be set as a plbandwidth object returnedfrom an invocation of <strong>np</strong>plregbw, or as a matrix of bandwidths, each row isa set of bandwidths for Z, with a column for each variable Z i . In the first roware the bandwidths for the regression of Y on Z, the following rows containthe bandwidths for the regressions of the columns of X on Z. If specified as amatrix additional arguments will need to be supplied as necessary to specify thebandwidth type, kernel types, training data, and so on.... additional arguments supplied to specify the regression type, bandwidth type,kernel types, selection methods, and so on. To do this, you may specify any ofregtype, bwmethod, bwscaling, bwtype, ckertype, ckerorder,ukertype, okertype, as described in <strong>np</strong>regbw.datanewdatatxdattydattzdatexdatan optional data frame, list or environment (or object coercible to a data frame byas.data.frame) containing the variables in the model. If not found in data,the variables are taken from environment(bws), typically the environmentfrom which <strong>np</strong>plregbw was called.An optional data frame in which to look for evaluation data. If omitted, thetraining data are used.a p-variate data frame of explanatory data (training data), corresponding to Xin the model equation, whose linear relationship with the dependent data Y isposited. Defaults to the training data used to compute the bandwidth object.a one (1) dimensional numeric or integer vector of dependent data, each elementi corresponding to each observation (row) i of txdat. Defaults to the trainingdata used to compute the bandwidth object.a q-variate data frame of explanatory data (training data), corresponding to Z inthe model equation, whose relationship to the dependent variable is unspecified(no<strong>np</strong>arametric). Defaults to the training data used to compute the bandwidthobject.a p-variate data frame of points on which the regression will be estimated (evaluationdata). By default, evaluation takes place on the data provided by txdat.
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The np PackageFebruary 16, 2008Vers
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Italy 3Examplesdata("cps71")attach(
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wage1 5Examplesdata("oecdpanel")att
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gradients 7## S3 method for class '
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np 9A variety of bandwidth methods
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npcmstest 11npcmstestKernel Consist
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npcmstest 13ReferencesAitchison, J.
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npcdens 15npcdensKernel Conditional
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npcdens 17Valuenpcdens returns a co
- Page 19 and 20: npcdens 19# Gaussian kernel (defaul
- Page 21 and 22: npcdens 21# (1993) (see their descr
- Page 23 and 24: npcdensbw 23fit
- Page 25 and 26: npcdensbw 25na.actionxdatydatbwspro
- Page 27 and 28: npcdensbw 27data. The approach is b
- Page 29 and 30: npconmode 29# depending on the spee
- Page 31 and 32: npconmode 31tydatexdateydata one (1
- Page 33 and 34: npconmode 33lwt,family=binomial(lin
- Page 35 and 36: npudens 35npudensKernel Density and
- Page 37 and 38: npudens 37Author(s)Tristen Hayfield
- Page 39 and 40: npudens 39# EXAMPLE 1 (INTERFACE=DA
- Page 41 and 42: npudensbw 41library("datasets")data
- Page 43 and 44: npudensbw 43bwsa bandwidth specific
- Page 45 and 46: npudensbw 45fvalobjective function
- Page 47 and 48: npudensbw 47# previous examples.bw
- Page 49 and 50: npudensbw 49# previous examples.bw
- Page 51 and 52: npksum 51Argumentsformuladatanewdat
- Page 53 and 54: npksum 53Usage IssuesIf you are usi
- Page 55 and 56: npksum 55# the bandwidth object its
- Page 57 and 58: npksum 57ss
- Page 59 and 60: npplot 59plot.behavior = c("plot","
- Page 61 and 62: npplot 61xtrim = 0.0,neval = 50,com
- Page 63 and 64: npplot 63xdatydatzdatxqyqzqxtrimytr
- Page 65 and 66: npplot 65DetailsValuenpplot is a ge
- Page 67 and 68: npplot 67year.seq
- Page 69: npplot 69# npplot(). When npplot()
- Page 73 and 74: npplreg 73residR2MSEMAEMAPECORRSIGN
- Page 75 and 76: npplreg 75# Plot the regression sur
- Page 77 and 78: npplregbw 77and dependent data), an
- Page 79 and 80: npplregbw 79Detailsnpplregbw implem
- Page 81 and 82: npplregbw 81x2
- Page 83 and 84: npqcmstest 83npqcmstestKernel Consi
- Page 85 and 86: npqcmstest 85Author(s)Tristen Hayfi
- Page 87 and 88: npqreg 87ftol = 1.19209e-07,tol = 1
- Page 89 and 90: npqreg 89Li, Q. and J.S. Racine (20
- Page 91 and 92: npreg 91Usagenpreg(bws, ...)## S3 m
- Page 93 and 94: npreg 93residR2MSEMAEMAPECORRSIGNif
- Page 95 and 96: npreg 95summary(model)# Use npplot(
- Page 97 and 98: npreg 97# - this may take a few min
- Page 99 and 100: npreg 99# then a noisy samplen
- Page 101 and 102: npregbw 101## S3 method for class '
- Page 103 and 104: npregbw 103ckerorderukertypeokertyp
- Page 105 and 106: npregbw 105ReferencesAitchison, J.
- Page 107 and 108: npsigtest 107bw
- Page 109 and 110: npsigtest 109Author(s)Tristen Hayfi
- Page 111 and 112: npindex 111Usagenpindex(bws, ...)##
- Page 113 and 114: npindex 113MAEMAPECORRSIGNif method
- Page 115 and 116: npindex 115x2
- Page 117 and 118: npindex 117# x1 is chi-squared havi
- Page 119 and 120: npindexbw 119# plotting via persp()
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npindexbw 121methodnmultithe single
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npindexbw 123allows one to deploy t
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npscoef 125x1
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npscoef 127Valueeydatezdaterrorsres
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npscoef 129# We could manually plot
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npscoefbw 131optim.abstol,optim.max
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npscoefbw 133optim.maxattemptsmaxim
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npscoefbw 135ReferencesAitchison, J
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uocquantile 137uocquantileCompute Q
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INDEX 139npconmode, 29npindex, 110n