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Yuecai Zhu
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Python is bad for beginner

Started this discussion. Last reply by Yuecai Zhu Apr 22, 2016. 4 Replies

In the past few months, I have scripted with python for my job. I am really satisfied with its dynamic data type feature and the ease of using list. But then today in an interview for a job, the…Continue


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Yuecai Zhu's Blog

comparative study note of Python and Java 4 --Function and Polymorphism

Posted on December 16, 2013 at 1:30pm 0 Comments

Function and Polymorphism

The Hovering Question

When I started learning these two languages, as mentioned before, I always keep in mind that the difference between dynamic data type and static data type. Then the question came out: why they need to be like that? What is the advantage of being dynamic data type or being static data type? To make the question more concrete, let’s see how to define a function in both languages.

In Java, everything is very…


A summary on Maximum likelihood Estimator

Posted on November 28, 2013 at 8:00am 0 Comments

A summary on Maximum likelihood Estimator


Why to learn MLE?

The drawback of least square estimator

A general method of building a predictive model requires least square estimation at first. Then we need work on the residuals, find the confidence interval of parameters and test how well the model fits the data which are based on the normally distributed assumption of the residuals (or noises). But unfortunately the assumption is not guaranteed. Most…


comparative study note of Python and Java 3 - Sequence type

Posted on November 10, 2013 at 12:00pm 2 Comments

3. Sequence Type


This time, we compare the sequence types of the two languages. By the terminology sequence type, we mean the data structure that is kind of a sequence of data.

In Java, we have: String, array, list(arraylist and linkedlist), set;

In Python, we have: Str, tuple, list, set;

Yes, String is one of the sequence type, because it is a sequence  of char, isn’t it? About the Sting type, we only need to…


Comparative study note of Java and Python (II)

Posted on October 30, 2013 at 5:32pm 0 Comments

2.The control flow statements

Now we try to use the two languages to do a practice. The following, one in Java one in Python, are two programs with the same algorithm.


 * program author: Yue Cai Zhu.…


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