How to remove zero in y-axist

[Trương Minh Luân]

How to remove number zero in y-axist , I want to remove it because It's x-axist has same value zero and I just need show one value

[Arthur Hebert]

Specifying the tick marks would work. 

Here is an example of options (you just need vAxis:{ ticks: [-1, 0, 1, 2, 3, 4, 5] } ): 

var options = {
      width: 500, //adjust as needed so the x and y scales are the same.
      height: 500, //adjust as needed so the x and y scales are the same.
      seriesType: "line",
      hAxes: {0: {viewWindowMode:'explicit',
                      viewWindow:{max:5, min:-1}   }   },
      vAxes: {0: {viewWindowMode:'explicit',
                      viewWindow:{max:5, min:-1}   }   },
      //vAxis: { gridlines : { count : 5 }   }, // this does work if needed for something.
      //hAxis: { gridlines : { count : 20 }   }, // this does work if needed for something.
      hAxis:{ gridlines : { count : 20 }, // doesn't do anything when ticks is used.
              ticks: [-1, 0, 1, 2, 3, 4, 5], // ticks takes priority over gridlines
                                              // apparently. can comment out ticks to see this happen.
              gridlines : { count : 20 } }, // doesn't do anything when ticks is used.
      vAxis:{ ticks: [-1, 0, 1, 2, 3, 4, 5] },