How to change the color of line of a plot created for an xts object in R?

To change the color of line of a plot created for an xts object in R, we can follow the below steps −

• First of all, create a data frame.

• Then, convert this data frame into an xts object.

• Create the plot for the data in xts object with default color.

• Then, create the plot for the data in xts object with different color

Create the data frame

Let's create a data frame as shown below −

Dates<-seq.POSIXt(from=as.POSIXct("2021-01-01"),to=as.POSIXct("2021-01-
25"),length.out=25)
Score<-sample(1:100,25)
df<-data.frame(Dates,Score)
df

On executing, the above script generates the below output(this output will vary on your system due to randomization) −

      Dates   Score
1  2021-01-01  85
2  2021-01-02  60
3  2021-01-03  80
4  2021-01-04  95
5  2021-01-05  93
6  2021-01-06  43
7  2021-01-07  57
8  2021-01-08  27
9  2021-01-09  74
10 2021-01-10  84
11 2021-01-11  18
12 2021-01-12  16
13 2021-01-13  72
14 2021-01-14  100
15 2021-01-15  23
16 2021-01-16  50
17 2021-01-17  2
18 2021-01-18  31
19 2021-01-19  54
20 2021-01-20 73
21 2021-01-21 33
22 2021-01-22 17
23 2021-01-23 6
24 2021-01-24 12
25 2021-01-25 98

Convert the data frame into an xts object

Loading xts package and converting df into an xts object −

Dates<-seq.POSIXt(from=as.POSIXct("2021-01-01"),to=as.POSIXct("2021-01-
25"),length.out=25)
Score<-sample(1:100,25)
df<-data.frame(Dates,Score)
library(xts)
df_ts<-xts(df$Score,df$Dates)
df_ts

Output

   [,1]
2021-01-01 85
2021-01-02 60
2021-01-03 80
2021-01-04 95
2021-01-05 93
2021-01-06 43
2021-01-07 57
2021-01-08 27
2021-01-09 74
2021-01-10 84
2021-01-11 18
2021-01-12 16
2021-01-13 72
2021-01-14 100
2021-01-15 23
2021-01-16 50
2021-01-17 2
2021-01-18 31
2021-01-19 54
2021-01-20 73
2021-01-21 33
2021-01-22 17
2021-01-23 6
2021-01-24 12
2021-01-25 98

Create the plot of xts object

Use plot function to create the plot of xts object −

Dates<-seq.POSIXt(from=as.POSIXct("2021-01-01"),to=as.POSIXct("2021-01-
25"),length.out=25)
Score<-sample(1:100,25)
df<-data.frame(Dates,Score)
library(xts)
df_ts<-xts(df$Score,df$Dates)
plot(df_ts)

Output

Create the same plot with different color line

Using lines function to create the plot of xts object with different color of lines as shown below −

Dates<-seq.POSIXt(from=as.POSIXct("2021-01-01"),to=as.POSIXct("2021-01-
25"),length.out=25)
Score<-sample(1:100,25)
df<-data.frame(Dates,Score)
library(xts)
df_ts<-xts(df$Score,df$Dates)
plot(df_ts)
lines(df_ts,col="red")

Output

Nizamuddin Siddiqui

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Updated on: 14-Aug-2021

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