删除 gnuplot 中的 weekend/non-trading 小时间隔

Question

我的问题与相同，只是我对烛台使用条件着色并且提到的解决方案不起作用。

我的数据是这样的：

10/24/2018 23:45,168.25,168.65,168.2,168.4,0
10/24/2018 23:46,168.5,169,168.5,168.95,67577
10/24/2018 23:47,169.35,169.6,169.1,169.1,151630
10/24/2018 23:48,169.05,169.35,168.95,169.2,63418
.
.
10/26/2018 13:48,169.05,169.35,168.95,169.2,63418
10/26/2018 23:47,169.35,169.6,169.1,169.1,151630
10/26/2018 23:48,169.05,169.35,168.95,169.2,63418

使用命令在 gnuplot 中绘制这样的文件：

plot ".../ISTFeed.csv" using (timecolumn(1, "%m/%d/%Y %H:%M:%S")) : 2 : 3 : 4 : 5 : ( < ? rgb(255, 0, 0) : rgb(0, 255, 0)) linecolor rgb variable notitle with candlesticks

生成有间隙的图表。我希望 gnuplot 忽略间隙并连续绘制烛台。有没有办法做到这一点？

Answer 1

查看下面生成的虚拟数据示例。尽管图中的 xtics 看起来是等距的，但 xtics 的值根本不是等距的。因此，如果您想读出两个 xtics 之间的 y-value，您不会 "any" 知道实际的 x-value 是什么。您只知道它必须位于相邻 xtics 之间的某个位置。有点奇怪...但是如果您对这种精度没问题...

代码：

### remove gaps in timedata
# requires gnuplot >=5.2, because of use of datablocks
reset session

# generate some dummy data
t = strptime("%m/%d/%Y %H:%M", "10/24/2018 23:45")
close = 168.25
set print $Data
print "#      date time,    open,     low,    high,   close"
do for [i=1:100] {
    open = close + (rand(0)*2)-1
    low_tmp = open - rand(0)
    high_tmp = open + rand(0)
    close = open + (rand(0)*2)-1
    low = open<low_tmp ? open : close<low_tmp ? close : low_tmp
    high = open>high_tmp ? open : close>high_tmp ? close : high_tmp
    dt = 3600*rand(0)*48
    t = t + dt
    print sprintf("%s,%8 .2f,%8 .2f,%8 .2f,%8 .2f",strftime("%m/%d/%Y %H:%M",t),open,low,high,close)
}
set print
print $Data

N = 10
Offset = 5
everyNthRow(N) = (int([=10=])%N==Offset ? word(strcol(1),1) : NaN)
set datafile separator ","
set xtics rotate by 45 right
set style fill solid 1.0
plot $Data u 0:2:3:4:5:(< ? 0xff0000 : 0x00ff00):xtic(everyNthRow(N)) w candlesticks lc rgb var not

### end of code

结果：

删除 gnuplot 中的 weekend/non-trading 小时间隔

Removing weekend/non-trading hours gaps in gnuplot

plot

gnuplot

candlestick-chart