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Jianshe Feng


Last seen: 2 years 前 |  自 2016 起处于活动状态

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Machine Learning PhD Student. Interested in Application of Machine Learning in Stat, Econ, and Precision Manufacturing Process.

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已解决


Getting logical indexes
This is a basic MATLAB operation. It is for instructional purposes. --- Logical indexing works like this. thresh = 4...

6 years 前

已解决


Check if number exists in vector
Return 1 if number _a_ exists in vector _b_ otherwise return 0. a = 3; b = [1,2,4]; Returns 0. a = 3; b = [1,...

6 years 前

已解决


Piecewise linear interpolation
Given an Mx2 vector and a row of M-1 integers, output a two column vector that linearly interpolates Y times between each succes...

6 years 前

提问


A question about randomsample syntax
I noticed that there are some syntax about how to "randomsample", for example" y = randsample(n,k) y = randsample(popula...

7 years 前 | 1 个回答 | 0

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已回答
Why do I get a warning about 'Integer Operands Are Required for Colon Operator When Used as Index' ?
One supplement is that this is not an error, but it's really annoying and very time-consuming!!! I tried to recreate this warni...

7 years 前 | 2

提问


Did any one receive the Mathworks T-shirt or hat from MATLAB Central Scavenger Hunt competition?
Greetings guys, I was so lucky that chosen to win a MathWorks T-shirt or hat from MATLAB Central Scavenger Hunt competition. ...

7 years 前 | 0 个回答 | 0

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提问


Where can I find the datasets "digitTrainCellArrayData"
Hi all, Now I am running the MATLAB sample code for "Train Stacked Autoencoders for Image Classification". The codes are as b...

7 years 前 | 2 个回答 | 0

2

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提问


How to run som_demo4 in somtoobox? Thank you~
Hi guys, I am learning SOM these days, when I run som_demo4.m in somtoolbox downloaded from http://www.cis.hut.fi/somtoolbox/...

7 years 前 | 1 个回答 | 0

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已回答
Repeat element of a vector n times without loop.
ind = [1;1;1;2;2;2;3;3;3]; x(ind)

7 years 前 | 0

已回答
Repeat element of a vector n times without loop.
y = repmat(x,1,3); y = transpose(y); y = y(:);

7 years 前 | 0

已解决


Pizza!
Given a circular pizza with radius _z_ and thickness _a_, return the pizza's volume. [ _z_ is first input argument.] Non-scor...

7 years 前

提问


Error when Zoom in
Hi guys, Here is my problem: I plotted a figure and wanted to zoom in to see some details. However, the error showed up: ...

8 years 前 | 1 个回答 | 0

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