pedquant (version 0.1.3)

pq_plot: creating charts for time series

Description

pq_plot provides an easy way to create charts for time series dataset based on predefined formats.

Usage

pq_plot(dt, chart_type = "line", freq = NULL, date_range = "max",
  from = NULL, to = Sys.Date(), x = "close|value", addti = list(volume =
  list()), linear_trend = NULL, perf = FALSE, yaxis_log = FALSE,
  color_up = "#F6736D", color_down = "#18C0C4", multi_series = list(nrow =
  NULL, ncol = NULL), rm_weekend = NULL, title = NULL, ...)

Arguments

dt

a list/dataframe of time series dataset

chart_type

chart type, including line, step, bar, candle.

freq

the frequency that the input daily data will converted to. It supports weekly, monthly, quarterly and yearly.

date_range

date range. Available value includes '1m'-'11m', 'ytd', 'max' and '1y'-'ny'. Default is max.

from

the start date. Default is NULL. If it is NULL, then calculate using date_range and end date.

to

the end date. Default is the current date.

x

the name of column display on chart.

addti

list of technical indicators or numerical columes in dt. For technical indicator, it is calculated via pq_addti, which including overlay and oscillator indicators.

linear_trend

a numeric vector. Default is NULL. If it is not NULL, then display linear trend lines on charts.

perf

logical, display the performance of input series. Default is FALSE. If it is TRUE, then call pq_code to convert data into performance trends.

yaxis_log

logical. Default is FALSE.

color_up

the color indicates price going up

color_down

the color indicates price going down

multi_series

a list. It display the number of ncol or nrow, and the yaxis scales in 'free'/'free_y'/'free_x'. Default is NULL.

rm_weekend

whether to remove weekends in xaxis. The default is TRUE for candle and bar chart, and is FALSE for line and step chart.

title

chart title. It will added to the front of chart title if it is specified.

...

ignored

Examples

# NOT RUN {
# single symbol
ssec = md_stock('^000001', source='163', date_range = 'max')

# chart type
  pq_plot(ssec, chart_type = 'line',   date_range = '6m') # line chart (default)
# pq_plot(ssec, chart_type = 'step',   date_range = '6m') # step line
# pq_plot(ssec, chart_type = 'candle', date_range = '6m') # candlestick
# pq_plot(ssec, chart_type = 'bar',    date_range = '6m') # bar chart

# add technical indicators
pq_plot(ssec, chart_type = 'line', addti = list(
        sma = list(n = 200), 
        sma = list(n = 50), 
        macd = list()
))
# linear trend with yaxis in log
pq_plot(ssec, chart_type = 'line', linear_trend = c(-0.8, 0, 0.8), yaxis_log = TRUE)


# multiple symbols
# download datasets
# dat = md_stock(c('FB', 'AMZN', 'AAPL', 'NFLX', 'GOOG'), date_range = 'max')
dat = md_stock(c('^000001', '^399001', '^399006', '^000016', '^000300', '^000905'), 
               date_range = 'max', source='163')

# linear trend
pq_plot(dat, multi_series=list(nrow=2, scales='free_y'), linear_trend=c(-0.8, 0, 0.8))
pq_plot(dat, multi_series=list(nrow=2, scales='free_y'), linear_trend=c(-0.8, 0, 0.8), 
        yaxis_log=TRUE)

# performance
pq_plot(dat, multi_series = list(nrow=2), perf=TRUE, date_range = 'ytd')
pq_plot(dat, multi_series = list(nrow=1, ncol=1), perf=TRUE, date_range = 'ytd')

# }
# NOT RUN {
# }