rahul67
November 21, 2019, 10:14am
1
Week
Sales
Forecast
1
39
39
2
44
39
3
40
40
4
45
40
5
38
41
6
43
40.4
7
39
40.92

this is my data in which I have calculated Smoothing value which is the forecast column. Any suggestion to calculate smoothing value in R. I was trying to calculate smoothing but I am unable to get the exact smoothing function.

Thanks in advance

There is the smooth() function.
In your case you could do:
matrix$Smooth <- smooth(matrix$Sales)

check ?smooth() for options

rahul67
November 21, 2019, 11:23am
3
I am getting this error.

"Error in matrix$Sales : object of type 'closure' is not subsettable" while using

Week <- c(1:7)
Sales <- c(39,44,40,45,38,43,99)
library(smooth)
matrix$Smooth <- smooth(matrix$Sales)

You are getting that error message because you haven't defined a data frame called "matrix" but you are making reference to it, see this example:

```
Week <- c(1:7)
Sales <- c(39,44,40,45,38,43,99)
matrix <- data.frame(Week, Sales)
matrix$Smooth <- smooth(matrix$Sales)
matrix
#> Week Sales Smooth
#> 1 1 39 40
#> 2 2 44 40
#> 3 3 40 40
#> 4 4 45 43
#> 5 5 38 43
#> 6 6 43 43
#> 7 7 99 43
```

^{Created on 2019-11-21 by the reprex package (v0.3.0.9000)}

system
Closed
December 12, 2019, 1:52pm
5
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