[ncl-talk] count of repetition of unique values

[Dennis Shea]

re: "I mean I want to know the number of repetition of "station_id" *using
a prepared function* in ncl"

There can't be a function for everything.

  station_id_u   = get_unique_values(station_id)

  nidu = dimsizes(station_id_u)
  station_id_uc = count_unique_values(station_id)

  print("nid="+nid+"  station_id_uc="+station_id_uc)  ; the same
  print("----------")

; *"*count the number of repetition of each unique value*"*

  nid = new(nidu,typeof(station_id_u))
  do n=0,nidu-1
     nid(n) = num(station_id.eq.station_id_u(n))
  end do
  print(station_id_u+"   "+nid)

On Fri, Jun 15, 2018 at 8:14 AM, Ehsan Taghizadeh <ehsantaghizadeh at yahoo.com
> wrote:

> Hi,
> I use attached 'ncl' file to read attached '.csv' file. I use "
> get_unique_values" to obtain unique value of "station_id" and "
> count_unique_values" to count the number of unique values.
> However I want to count the number of repetition of each unique values. Is
> there any function in 'ncl' for this aim? I mean I want to know the number
> of repetition of "station_id" using a prepared function in ncl.
> I'll be thankful for any help.
>
> Note: Some rows doesn't have any values for "sum", so reading file causes
> following massage:
> warning:tofloat: A bad value was passed to (string) tofloat, input strings
> must contain numeric digits, replacing with missing value
>
>
> Sincerely
> Ehsan
>
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