DatasetWeatherTokyoMeanAirTemperature

Library "DatasetWeatherTokyoMeanAirTemperature"
Provides a data set of the monthly mean air temperature (°C) for the city of Tokyo in Japan.
this was just for fun, no financial implications in this.
reference:
data.jma.go.jp/obd/stats/etrn/view/monthly_s3_en.php?block_no=47662
TOKYO WMO Station ID:47662 Lat 35o41.5'N Lon 139o45.0'E

year_()
  the years of the data set.
  Returns: array<int> : year values.

january()
  the january values of the dataset
  Returns: array\<float> : data values for january.

february()
  the february values of the dataset
  Returns: array\<float> : data values for february.

march()
  the march values of the dataset
  Returns: array\<float> : data values for march.

april()
  the april values of the dataset
  Returns: array\<float> : data values for april.

may()
  the may values of the dataset
  Returns: array\<float> : data values for may.

june()
  the june values of the dataset
  Returns: array\<float> : data values for june.

july()
  the july values of the dataset
  Returns: array\<float> : data values for july.

august()
  the august values of the dataset
  Returns: array\<float> : data values for august.

september()
  the september values of the dataset
  Returns: array\<float> : data values for september.

october()
  the october values of the dataset
  Returns: array\<float> : data values for october.

november()
  the november values of the dataset
  Returns: array\<float> : data values for november.

december()
  the december values of the dataset
  Returns: array\<float> : data values for december.

annual()
  the annual values of the dataset
  Returns: array\<float> : data values for annual.

select_month(idx)
  get the temperature values for a specific month.
  Parameters:
    idx: int, month index (1 -> 12 | any other value returns annual average values).
  Returns: array\<float> : data values for selected month.

select_value(year_, month_)
  get the temperature value of a specified year and month.
  Parameters:
    year_: int, year value.
    month_: int, month index (1 -> 12 | any other value returns annual average values).
  Returns: float : value of specified year and month.

diff_to_median(month_)
  the difference of the month air temperature (ºC) to the median of the sample.
  Parameters:
    month_: int, month index (1 -> 12 | any other value returns annual average values).
  Returns: float : difference of current month to median in (Cº)