Nothing
###########################################################################################
# Contains the functions needed to: convert to an MRH object, summary, and plot for PH model.
###########################################################################################
callPHplot = function(x, censortime, main, xlab, ylab, plot.type,
smooth.graph, smooth.df, combine.graphs, conf.int, alpha.level){
# Calculate M
M = log(length(which(substr(colnames(x), 1, 1) == 'd')))/log(2)
# Cannot smooth with 2 bins, so set smooth = F if user has selected this option
# (the graph will still appear smooth to the user)
if(M == 1 & smooth.graph == TRUE){ smooth.graph = FALSE }
# Get the parameter estimates #
results = t(CalcFunction(x, function.type = plot.type, alpha.level = alpha.level, maxStudyTime = censortime)[[1]])
if(plot.type == 'H'){ ylab = 'Cumulative hazard'
} else if(plot.type == 'S'){ ylab = 'Survival Function' }
###### Plot #####
if(smooth.graph == FALSE){
if(plot.type == 'h'){ xvals = pbfxn(2^M, censortime/2^M, as.numeric(results[,2]))
} else {
xvals = pbfxn(2^M, censortime/2^M, results[-1,2])
if(plot.type == 'H'){ xvals = rbind(c(0, 0), xvals)
} else { xvals = rbind(c(0, 1), xvals) }
}
ylimit = range(results)
if(conf.int == FALSE){ ylimit = range(results[,2]) }
plot(xvals$x, xvals$y, main = main, xlab = xlab, ylab = ylab, type = 'l',
ylim = ylimit, lwd = 3)
if(conf.int == TRUE){
if(plot.type == 'h'){
points(xvals$x, pbfxn(2^M, censortime/2^M, results[,1])$y, type = 'l', lty = 2)
points(xvals$x, pbfxn(2^M, censortime/2^M, results[,3])$y, type = 'l', lty = 2)
} else if(plot.type == 'H'){
points(xvals$x, c(0, pbfxn(2^M, censortime/2^M, results[-1,1])$y), type = 'l', lty = 2)
points(xvals$x, c(0, pbfxn(2^M, censortime/2^M, results[-1,3])$y), type = 'l', lty = 2)
} else {
points(xvals$x, c(1, pbfxn(2^M, censortime/2^M, results[-1,1])$y), type = 'l', lty = 2)
points(xvals$x, c(1, pbfxn(2^M, censortime/2^M, results[-1,3])$y), type = 'l', lty = 2)
}
}
} else {
# Calculate and plot the smooth ds over time
if(is.null(smooth.df)){ smooth.df = 2^M/2 }
timePts = seq(censortime/2^M, censortime, by = censortime/2^M)-.5*censortime/2^M
if(plot.type != 'h'){ timePts = c(0, timePts) }
smoothdInts = smooth.spline(results[,1]~timePts, df = smooth.df)$y
smoothdInts = cbind(smoothdInts, smooth.spline(results[,2]~timePts, df = smooth.df)$y)
smoothdInts = cbind(smoothdInts, smooth.spline(results[,3]~timePts, df = smooth.df)$y)
ylimit = range(smoothdInts)
if(conf.int == FALSE){ ylimit = range(smoothdInts[,2]) }
plot(timePts, smoothdInts[,2], main = main, xlab = xlab, ylab = ylab, type = 'l',
ylim = ylimit, lwd = 3)
if(conf.int == TRUE){
points(timePts, smoothdInts[,1], type = 'l', lty = 2)
points(timePts, smoothdInts[,3], type = 'l', lty = 2)
}
}
}
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