当我将多条线添加到绘图中时,代码会像这样爆炸。
plot_pch = 16
plot_ltya = 'solid'
plot_ltyb = 'dotted'
plot(df[cond1, 'field'],
type='o',
pch=plot_pch,
plot_ltya)
lines(df[cond2, 'field'],
type='o',
pch=plot_pch,
lty=plot_ltya)
lines(df[cond3, 'field'],
type='o',
pch=plot_pch,
lty=plot_ltya)
lines(df[cond4, 'field'],
type='o',
pch=plot_pch,
lty=plot_ltyb)
lines(df[cond5, 'field'],
type='o',
pch=plot_pch,
lty=plot_ltyb)
有没有办法通过各种全局设置简单地解决这个问题?
setglobal(pch=plot_pch)
答案 0 :(得分:2)
如果要在pch
会话的剩余时间内更改图形参数(如R
),您可以执行以下操作:
plot_pch <- 16
par(pch = plot_pch)
设置pch
值后,另一种简化此调用的方法是使用mapply
函数:
plot(df[cond1, 'field'],
type='o',
pch=plot_pch,
lty = 'solid')
mapply(function(df, lty) lines(df, type = 'o', lty = lty),
df = list(df[cond2, 'field'], df[cond3, 'field'],
df[cond4, 'field'], df[cond5, 'field']),
lty = rep(c('solid','dotted'), each = 2))