By using min and max value it works. but in my data difference betwwen Y1 and Y2 axis is big
ex: y1 ={10000,15000,36400,80000,… } and
y2= { -10,-5,-3,-8,-15…}
y3={ 100,210,165,378,…}
I have set min=10000 and max=80000.
but Y2 and Y3 looks nothhing in graph see image “same_min_max_used” bellow
so I need the graph which contains different type of value but start from same one 0 gridline (so positive value display at up and negative will display at bottom.) see in :required" image bellow