1. Histogram柱状图总是根据默认间距从而划分区间，但有时效果并不理想（如某段数据会特集中），请问能否以及如何任意设置柱状的每段大小，从而细分更多的区间？

2. One Way Tabulation：‘Group into bins if’下面的三个设置是什么意思啊， 怎么个工作逻辑？查了help里有说明如下，但不很理解，请教大侠释惑， 谢了！

‘A classification may result in a large number of distinct values with very small cell sizes. By default, EViews automatically groups observations into categories to maintain moderate cell sizes and numbers of categories. Group into Bins provides you with control over this process.

Setting the # of values option tells EViews to group data if the classifier series takes more than the specified number of distinct values.

The Avg. count option is used to bin the series if the average count for each distinct value of the classifier series is less than the specified number.

The Max # of bins specifies the maximum number of subgroups to bin the series. Note that this number only provides you with approximate control over the number of bins.’

[此贴子已经被作者于2009-5-15 8:27:20编辑过]