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[price-scatter] upgraded
This commit is contained in:
Christopher Lam
parent
9b8057e573
commit
cb978aad0d
@ -134,12 +134,6 @@
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(gnc:option-value
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(gnc:lookup-option (gnc:report-options report-obj) section name)))
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;; small helper for the warnings below
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(define (commodity-numeric->string c n)
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(gnc:monetary->string
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(gnc:make-gnc-monetary c n)))
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(let* ((to-date (gnc:time64-end-day-time
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(gnc:date-option-absolute-time
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(get-option gnc:pagename-general
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@ -173,11 +167,13 @@
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(gnc:deltasym-to-delta interval)))
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(document (gnc:make-html-document))
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(chart (gnc:make-html-scatter))
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(chart (gnc:make-html-chart))
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(currency-accounts
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(filter gnc:account-has-shares? (gnc-account-get-descendants-sorted
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(gnc-get-current-root-account))))
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(invert (get-option pagename-price optname-invert))
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(amount-commodity (if invert price-commodity report-currency))
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(base-commodity (if invert report-currency price-commodity))
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(data '()))
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;; Short helper for all the warnings below
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@ -188,42 +184,41 @@
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(gnc:html-markup-h2 title)
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(gnc:html-markup-p text))))
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(gnc:html-scatter-set-title!
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chart report-title)
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(gnc:html-scatter-set-subtitle!
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chart (string-append
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;; Check for whether it is commodity against currency or
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;; the other way round.
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(if invert
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(gnc-commodity-get-mnemonic report-currency)
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(gnc-commodity-get-mnemonic price-commodity))
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(gnc:html-chart-set-type! chart 'line)
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(gnc:html-chart-set-currency-iso!
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chart (gnc-commodity-get-mnemonic amount-commodity))
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(gnc:html-chart-set-currency-symbol!
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chart (gnc-commodity-get-nice-symbol amount-commodity))
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(gnc:html-chart-set-title!
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chart
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(list report-title
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(string-append
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(gnc-commodity-get-mnemonic base-commodity)
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" - "
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(format #f
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(_ "~a to ~a")
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(qof-print-date from-date)
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(qof-print-date to-date))))
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(gnc:html-scatter-set-width! chart width)
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(gnc:html-scatter-set-height! chart height)
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(gnc:html-scatter-set-marker! chart
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(qof-print-date to-date)))))
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(gnc:html-chart-set-width! chart width)
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(gnc:html-chart-set-height! chart height)
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(gnc:html-chart-set! chart
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'(options elements point pointStyle)
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(case marker
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((diamond) "diamond")
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((circle) "circle")
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((square) "square")
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((cross) "x")
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((plus) "plus")
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((dash) "dash")
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((filleddiamond) "filledDiamond")
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((filledcircle) "filledCircle")
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((filledsquare) "filledSquare")))
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(gnc:html-scatter-set-markercolor! chart mcolor)
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(gnc:html-scatter-set-y-axis-label!
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((filleddiamond diamond) "rectRot")
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((filledcircle circle) "circle")
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((filledsquare square) "rect")
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((cross) "crossRot")
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((plus) "cross")
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((dash) "line")))
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(gnc:html-chart-set-y-axis-label!
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chart
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;; Check for whether it is commodity against currency or
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;; the other way round.
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(if invert
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(gnc-commodity-get-mnemonic price-commodity)
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(gnc-commodity-get-mnemonic report-currency)))
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(gnc:html-scatter-set-x-axis-label!
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(gnc-commodity-get-mnemonic amount-commodity))
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(gnc:html-chart-set-x-axis-label!
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chart (case interval
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((DayDelta) (_ "Days"))
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((WeekDelta) (_ "Weeks"))
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@ -231,6 +226,10 @@
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((MonthDelta) (_ "Months"))
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((YearDelta) (_ "Years"))))
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(gnc:html-chart-set!
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chart '(options scales xAxes (0) type) 'linear)
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(gnc:html-chart-set-custom-x-axis-ticks?! chart #f)
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(if
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(not (gnc-commodity-equiv report-currency price-commodity))
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(begin
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@ -253,83 +252,95 @@
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(gnc-price-get-value p)))
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(gnc-pricedb-get-prices
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(gnc-pricedb-get-db (gnc-get-current-book))
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price-commodity report-currency)))
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)))
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price-commodity report-currency))))))
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(set! data (filter
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(lambda (x)
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(and
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(>= to-date (first x))
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(>= (first x) from-date)))
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data))
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;; some output
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;;(warn "data" (map (lambda (x) (list
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;; (qof-print-date x)
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;; (gnc-numeric-to-double (second x))))
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;; data))
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;; convert the gnc:numeric's to doubles
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(if invert
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(set! data (map (lambda (x)
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(list (first x)
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(/ 1 (gnc-numeric-to-double (second x)))))
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data))
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(set! data (map (lambda (x)
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(list (first x)
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(gnc-numeric-to-double (second x))))
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data)))
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;; convert the dates to the weird x-axis scaling of the
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;; scatterplot
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;; the following transforms data in 1 assignment operation
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;; 1. filters prices within specified dates
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;; 2. transforms the price-date to numperiod since report start-date
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;; 3. inverts the price-ratio if required
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(set! data
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(map (lambda (x)
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(map (lambda (datum)
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(list
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(/ (- (first x)
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from-date)
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;; FIXME: These hard-coded values are more
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;; or less totally bogus. OTOH this whole
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;; scaling thing is totally bogus as well,
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;; so this doesn't matter too much.
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(/ (- (car datum) from-date)
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;; convert the dates to the x-axis scaling of the
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;; scatterplot
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(case interval
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((DayDelta) 86400)
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((WeekDelta) 604800)
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((TwoWeekDelta) 1209600)
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((MonthDelta) 2628000)
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((YearDelta) 31536000)))
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(second x)))
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(if invert
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(/ 1 (cadr datum))
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(cadr datum))))
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(filter
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(lambda (datum)
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(<= from-date (car datum) to-date))
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data)))
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(gnc:html-chart-set-data-labels!
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chart (map
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(lambda (datum)
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(format #f "~2,2f ~a = ~a"
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(car datum)
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(case interval
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((DayDelta) (_ "Days"))
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((WeekDelta) (_ "Weeks"))
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((TwoWeekDelta) (_ "Double-Weeks"))
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((MonthDelta) (_ "Months"))
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((YearDelta) (_ "Years")))
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(gnc:monetary->string
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(gnc:make-gnc-monetary
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amount-commodity
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(cadr datum)))))
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data))
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(gnc:html-scatter-set-data!
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chart data)
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(gnc:html-chart-add-data-series!
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chart (_ "Price")
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(map
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(lambda (datum)
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(list
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(cons 'x (car datum))
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(cons 'y (cadr datum))))
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data)
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mcolor
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'pointBorderColor mcolor
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'fill #f
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'borderColor "#4bb2c5"
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'pointBackgroundColor (if (memq marker '(filledcircle filledsquare filleddiamond))
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mcolor
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"white"))
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;; Make tons of tests so that Guppi won't barf
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(if (not (null? data))
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(if (> (length data) 1)
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(if (apply equal? (map second data))
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(cond
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((null? data)
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(make-warning
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(_ "All Prices equal")
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(_ "All the prices found are equal. \
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This would result in a plot with one straight line. \
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Unfortunately, the plotting tool can't handle that."))
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(if (apply equal? (map first data))
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(make-warning
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(_ "All Prices at the same date")
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(_ "All the prices found are from the same date. \
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This would result in a plot with one straight line. \
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Unfortunately, the plotting tool can't handle that."))
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(gnc:html-document-add-object! document chart)))
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(_ "No data")
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(_ "There is no price information available for the \
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selected commodities in the selected time period.")))
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((<= (length data) 1)
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(make-warning
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(_ "Only one price")
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(_ "There was only one single price found for the \
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selected commodities in the selected time period. This doesn't give \
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a useful plot.")))
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((apply equal? (map cadr data))
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(make-warning
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(_ "No data")
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(_ "There is no price information available for the \
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selected commodities in the selected time period."))))
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(_ "All Prices equal")
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(_ "All the prices found are equal. \
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This would result in a plot with one straight line. \
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Unfortunately, the plotting tool can't handle that.")))
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((apply equal? (map car data))
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(make-warning
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(_ "All Prices at the same date")
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(_ "All the prices found are from the same date. \
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This would result in a plot with one straight line. \
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Unfortunately, the plotting tool can't handle that.")))
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(else
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(gnc:html-document-add-object! document chart))))
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;; warning if report-currency == price-commodity
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(make-warning
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