how to pass more than one values while using annotation in dygraph

General
1

Hi all,

Below is my data frame sample where second data set is subset of first one and should be marked as anomaly.
First Data set:

> head(X_test_pred)
     V7 Predictions                time
1 26.79           8 2019-02-17 13:04:21
2 26.79          28 2019-02-17 13:04:13
3 26.79          21 2019-02-17 13:04:22
4 26.79          83 2019-02-17 13:04:23
5 26.79          24 2019-02-17 13:04:24
6 26.79           5 2019-02-17 13:04:25

Second Data Set:

> head(anomalyDataframe)
         V7 Predictions                time
92407 26.82           0 2019-02-18 14:44:27
92408 26.82           0 2019-02-18 14:44:28
92409 26.82           0 2019-02-18 14:44:29
92410 26.82           0 2019-02-18 14:44:30
92411 26.82           0 2019-02-18 14:44:31
92412 26.82           0 2019-02-18 14:44:32

I am using for loop for annotation which is making it very slow: below is my annotatio for loop:

for (i in 1:NROW(anomalyDataframe)) {
                        
  dy_graph <- dygraphs::dyAnnotation(dy_graph, x=anomalyDataframe$time[i], text="*")
                         
}

Please suggest a faster way to mark annotations.

2

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