w is a single character text string indicating the character to be used as a decimal separator in x. Default is the character specified in your International or Regional settings control panel. (This argument is optional.)
w ni single tabia maandishi kamba ikionyesha tabia ya kutumika kama separator decimal katika x. Default ni tabia maalum katika mazingira International au Mkoa jopo kudhibiti yako. (Hoja hii ni ya hiari.)