English daily notes
2015年
4月
Phrases
1. As a side note
#作为附注，顺便说句题外话，和by the way意思相近，例句：
@1：As a side note, there is no equivalent to tapply in the plyr package.
2. Across the range of
#各种/各类/所有的，例句
@1：In order to improve all the mechanism, we' are looking across the range of all the platforms and areas.
3. zero in on
注意力集中于(某事)，聚焦于，对准（使(枪炮)瞄准(某目标)），例句：
@1：When we had all zeroed in our guns on the enemy post, we opened fire.
@2： The plane zeroed in on the arms factory and distroyed it with one bomb.
4. boil down to
# 归结为，浓缩成，意味着
@1：It could simply boil down to a lack of opportunity: Women still earn less than menworking the same jobs and are underrepresented in the boardroom.
这可以简单地归结为：机会的缺少。同样的工作中妇女的收入仍旧比男性少，在董事会中的席位也如此。
@2：Many data problems boil down to statistical tests
5. indoor and outdoor stadiums
@1：室内和露天大型运动场(或体育馆)
6. TV commentators
@1：电视评论员
7. during pregnancy
@1：怀孕期间:
8. bell-shaped curve
钟形曲线
@1：For many random variables, a good choice is the normal distribution, oftenrepresented as a bell-shaped curve, shown in Figure 1（对于许多随机变量来说，一个好的选择是正态分布，常常表现为一个钟型曲线，如图1 所示)
9. alternative hypothesis
@1：备择假设
10. computationally intensive
需要大量运算的！
@1：Fisher’s exact test can be very computationally intensive for large tables, so statisticians
usually use an alternative test: chi-squared tests。
Words
1. switch hitters
#左右手均能击球的运动员
@1：As you can see, the proportion of switch hitters (bats=="B") increases with higher batting average(击球率)
2. mosaic plot
#马赛克图/拼花图
3.formulate
vt. 规划/制定；用公式表示；明确地表达
@1：If you formulate something such as a plan or proposal, you invent it, thinking about the details carefully. 构想出 (计划或提案)；
Little by little, he formulated his plan for escape：他一点一点地构想出了他的逃跑计划
@2：If you formulate a thought, opinion, or idea, you express it or describe it using particular words. 用独特的词语表述
I was impressed by the way he could formulate his ideas：我对他表述自己想法的独特用词印象深刻。
4.proprietary
# 专有的，特有的，私有的，专利的
R is a good substitute for expensive, proprietary statistics software packages