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Liqun


8 total contributions since 2015

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Question


run multiple linear regression using fitlm without create new table?
I have a large table (500000 rows X 26 columns), there are two category variables, say c1 with value +1, 0 and -1; c2 with value...

3 years ago | 1 answer | 0

1

answer

Question


why can matlab NOT solve this simple equation (2015a version) ?
>> syms x; >> solve(2*x-1==0) ans = 1/2 >> solve(5000*(1/x - 1/(x*(1+x)^15)) - 35000 == 0) >> solve(5000*(1/x - 1...

4 years ago | 2 answers | 0

2

answers

Question


Looking for fast integration method?
I am trying to do an integration 10000*5 times, it seems like a incomplete gamma function, but it is not, because after i did...

4 years ago | 0 answers | 0

0

answers

Question


setting default date and time format in R2015a ?
I have problems to set default date format in matlab R2015a version. After I enter the command to change the default date forma...

4 years ago | 2 answers | 0

2

answers

Answered
How do I merge a column from one table into the column of another table that has missing entries?
I have a similar problem, suppose I have table A and B as follows: A = table([1;2;3;4;5;6;7;8;9], [2;4;6;8;10;12;14;16;18...

4 years ago | 0

Answered
how to speed up my program? parallel?
I tried to change for vlevel = 1 : Vn % loop on V-tree to parfor vlevel = 1 : Vn % loop on V-tree But...

4 years ago | 0

Answered
how to speed up my program? parallel?
Under of the help from Roger, the speed is double now. But, still looking for some significant speed up. can this do paralle...

4 years ago | 0

Question


how to speed up my program? parallel?
I have a piece code which would take long time to run, I am wondering how to speed up. Any hints or suggestions are welcome! ...

4 years ago | 4 answers | 0

4

answers