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Commit 899e0590 authored by majpark21's avatar majpark21
Browse files

added PSDplot file

parent 64dd334f
require(DT)
modPSDPlotUI = function(id, label = "Plot PSD of average trajectory.") {
ns <- NS(id)
tagList(
fluidRow(
column(
3,
checkboxInput(ns('chBplotTrajInt'), 'Interactive Plot'),
radioButtons(ns('rBlegendPos'), 'Legend placement:', list('top' = 'top', 'right' = 'right')),
actionButton(ns('butPlotTraj'), 'Plot!')
),
column(
3,
sliderInput(ns('sliPlotTrajSkip'), 'Plot every n-th point:', min = 1, max = 10, value = 1, step = 1)
),
column(
3,
numericInput(
ns('inPlotTrajWidth'),
'Width [%]:',
value = 100,
min = 10,
max = 100,
width = '100px',
step = 10
),
numericInput(
ns('inPlotTrajHeight'),
'Height [px]:',
value = 800,
min = 100,
width = '100px',
step = 50
)
)
),
uiOutput(ns('uiPlotTraj')),
br(),
modTrackStatsUI(ns('dispTrackStats')),
downPlotUI(ns('downPlotTraj'), "Download PDF")
)
}
modPSDPlot = function(input, output, session,
in.data,
in.facet = 'group',
in.facet.color = NULL,
in.fname) {
ns <- session$ns
output$uiPlotTraj = renderUI({
if (input$chBplotTrajInt)
plotlyOutput(
ns("outPlotTrajInt"),
width = paste0(input$inPlotTrajWidth, '%'),
height = paste0(input$inPlotTrajHeight, 'px')
) else
plotOutput(
ns("outPlotTraj"),
width = paste0(input$inPlotTrajWidth, '%'),
height = paste0(input$inPlotTrajHeight, 'px')
)
})
callModule(modTrackStats, 'dispTrackStats',
in.data = in.data)
output$outPlotTraj <- renderPlot({
loc.p = plotTraj()
if(is.null(loc.p))
return(NULL)
return(loc.p)
})
output$outPlotTrajInt <- renderPlotly({
# This is required to avoid
# "Warning: Error in <Anonymous>: cannot open file 'Rplots.pdf'"
# When running on a server. Based on:
# https://github.com/ropensci/plotly/issues/494
if (names(dev.cur()) != "null device")
dev.off()
pdf(NULL)
loc.p = plotTraj()
if(is.null(loc.p))
return(NULL)
return(plotly_build(loc.p))
})
# PSD plot - download pdf
callModule(downPlot, "downPlotTraj",
in.fname = in.fname,
plotTraj, TRUE)
plotPSD <- function() {
cat(file = stderr(), 'plotPSD: in\n')
locBut = input$butPlotTraj
if (locBut == 0) {
cat(file = stderr(), 'plotPSD: Go button not pressed\n')
return(NULL)
}
# check if main data exists
loc.dt = isolate(in.data())
cat("plotPSD: on to plot\n\n")
if (is.null(loc.dt)) {
cat(file = stderr(), 'plotPSD: dt is NULL\n')
return(NULL)
}
cat(file = stderr(), 'plotPSD: dt not NULL\n')
# Future: change such that a column with colouring status is chosen by the user
# colour trajectories, if dataset contains mid.in column
# with filtering status of trajectory
if (sum(names(loc.dt) %in% 'mid.in') > 0)
loc.line.col.arg = 'mid.in'
else
loc.line.col.arg = NULL
# select every other point for plotting
loc.dt = loc.dt[, .SD[seq(1, .N, input$sliPlotTrajSkip)], by = id]
# check if columns with XY positions are present
if (sum(names(loc.dt) %like% 'pos') == 2)
locPos = TRUE
else
locPos = FALSE
# check if column with ObjectNumber is present
if (sum(names(loc.dt) %like% 'obj.num') == 1)
locObjNum = TRUE
else
locObjNum = FALSE
# If in.facet.color present,
# make sure to include the same number of colours in the palette,
# as the number of groups in dt.
# in.facet.color is typically used when plotting time series within clusters.
# Then, the number of colours in the palette has to be equal to the number of clusters (facetted according to in.facet variable).
# This might differ if the user selects manually clusters to display.
if (is.null(in.facet.color))
loc.facet.col = NULL
else {
# get group numbers in dt;
# loc.dt[, c(in.facet), with = FALSE] returns a data table with a single column
# [[1]] at the end extracts the first column and returns as a vector
loc.groups = unique(loc.dt[, c(in.facet), with = FALSE][[1]])
# get colour palette
# the length is equal to the number of groups in the original dt.
# When plotting time series within clusters, the length equals the number of clusters.
loc.facet.col = in.facet.color()$cl.col
loc.facet.col = loc.facet.col[loc.groups]
}
loc.dt.aggr <- LOCcalcPSD(in.dt = loc.dt,
in.col.meas = 'y',
in.col.id = 'id',
in.col.by = in.facet,
in.method = 'pgram',
in.return.period = TRUE
)
loc.dt.aggr[, (in.facet) := as.factor(get(in.facet))]
x_arg <- ifelse('period' %in% colnames(loc.dt.aggr), 'period', 'frequency')
p.out <- LOCplotPSD(dt.arg = loc.dt.aggr,
x.arg = x_arg,
y.arg = 'spec',
group.arg = in.facet,
xlab.arg = x_arg,
ylab.arg = '') +
LOCggplotTheme(in.font.base = PLOTFONTBASE,
in.font.axis.text = PLOTFONTAXISTEXT,
in.font.axis.title = PLOTFONTAXISTITLE,
in.font.strip = PLOTFONTFACETSTRIP,
in.font.legend = PLOTFONTLEGEND) +
theme(legend.position = input$rBlegendPos)
return(p.out)
}
}
\ No newline at end of file
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