d3 js对数比例箱线图

http://bl.ocks.org/jensgrubert/7789216

但应用于以下数据集(csv)

"Q1","Q2","Q3","Q4"
0.43,30,0.42,0.3
19,2,15,14
41,46,28,100
8,1,0.45,0.05
0.71,0.68,5,0.4
21,14,7,23
0.63,0.11,0.47,0.22
10,15,0.87,0.4
16,16,18,14
0.01,0.72,0.31,0.28

var v1 = Math.round(x.Q1*100)/100,
    v2 = Math.round(x.Q2*100)/100,
    v3 = Math.round(x.Q3*100)/100,
    v4 = Math.round(x.Q4*100)/100;

考虑到我想把y轴改成对数,我把原来的代码改成如下:

// the y-axis
var y = d3.scale.log()
 .domain([0.001, 100])
 .range([height + margin.top, 0 + margin.top]);

var yAxis = d3.svg.axis()
    .scale(y)
    .orient("left")
    .tickValues([0.001, 0.01, 0.1, 1, 10, 100])

这可能是因为数据的日志转换吗? 最终如何正确地做到这一切?

我还有第二个(显然是次要的)问题:如何旋转x轴的标签(QI,Q2,Q3,Q4)?

谢谢您