fdbk_dt_binning: Bin a data.table column into user defined bins and replace it...

In rfxf/Rfdbk: Handling NetCDF feedback files

Description

Bin a data.table column into user defined bins and replace it with the bin center value. If breaks can be provided (e.g. no gaps between bins) try to use 'cut' instead.

Usage

fdbk_dt_binning(DT, varToBin = "level", binLower, binUpper)

Arguments

DT	data.table
varToBin	variable that should be binned (and will be replaced by the binned version)
binLower	number/vector lower bins limits
binUpper	number/vector upper bins limits

Value

data.table with varToBin replaced by factorized mid-bin values (NA if variable falls in none of the bins)

Author(s)

Felix <[e-mail]>

See Also

cut

Examples

#plot scores accross binned levels
require(ggplot2)
fnames       = "~/examplesRfdbk/icon/temp/verTEMP.2014120112"
cond        = list(obs="!is.na(obs)",varno="varno%in%c(2,3,4,29)")
columnnames = c("obs","veri_data","varno","state","level")
DT          = fdbk_dt_multi_large(fnames,cond,columnnames,1)
binUpper    = seq(100000,1000,by=-5000)+1500
binLower    = seq(100000,1000,by=-5000)-1500
DT          = fdbk_dt_binning(DT,"level",binLower,binUpper)
DT          = DT[!is.na(level),,]
DT$varno    = varno_to_name(DT$varno)
strat       = c("varno","level")
scores      = fdbk_dt_verif_continuous(DT,strat)
setkey(scores,scorename,varno,level)
scores      = scores[!is.na(scores),]
p =  ggplot(scores,aes(x=scores,y=level,group=interaction(varno,scorename)))+
 geom_path() + facet_wrap(~varno~scorename,scales="free_x",ncol = 6)+
 theme_bw()+theme(axis.text.x  = element_text(angle=70,hjust = 1))+scale_y_reverse()
p

rfxf/Rfdbk documentation built on May 27, 2019, 7:22 a.m.