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如何保存人人网照片 2016 10 22

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Matlab cell2mat: empty matrix 0-by-152

When I read a matrix using textscan and then tried converting it to a matrix, I got an empty matrix.

No solutions provided by Google when I searched.


My solution:
The input file had an extra empty line. Remove that line/linebreak char, and then repeat the importing process.

Now it works.

[solved] linux join : “File 2 not in sorted order”

Solution:
using LANG=en_EN sort -k 1,1 <myfile> ... then LANG=en_EN join ...

Note:
Don't use -k 1d,1 for sorting strings such as gene names.
Always join using ENSEMBL IDs'

Cause:
sort -k 1d,1 and join probably have different default orders especially when dealing with strings containing special charaters, like '-'

how to freeze the top row and top column in Excel

click to select the Cell B2
view -> freeze panes -> freeze panes

[solved]Credit card pending activity: Circle K 09453. What is that?

It means the Mobil Gas Station.

Circle K is just the convenience store at the station.

the five digit number is the ID of that location.

What is Aleppo?

In the beginning of our USC mixed reality tour, the speaker asked everyone what is Aleppo?

The fact is even if you have google, you probably still can't know what is Aleppo because you don't even know how it is spelled.

If Google associated the key word "Aleppo" with "Presidential Debate" and "Middle East", things would be easier to be figured out.

https://www.google.com/search?q=what+is+elipo+president+debate&oq=what+is+elipo+president+debate&aqs=chrome..69i57.4911j0j7&sourceid=chrome&ie=UTF-8#q=aleppo



Other abbreviatiosn:
EPA: US Environmental Protection Agency 

how to calculate cosine correlation coefficient using Excel

=power(SUMPRODUCT(A1:A3,B1:B3),2)/SUMSQ(A1:A3)/SUMSQ(B1:B3)

reference: http://stackoverflow.com/questions/22715120/excel-scalar-product-of-two-ranges

How to apply for Caltech Low-Emission Vehicle parking permit discount

The discount is 20% off
1. check whether your vehicle is qualified here
2. print out this form
3. complete the form and submit to the parking office on Wilson

Note: If you haven't got a permit yet, you may apply for one

Matlab Clustergram Image increase resolution

I read multiple official and non-official solutions but none worked as mine:

1. plug in your computer to a second screen which is much bigger
2. drag to enlarge the plot area
3. if the dendrogram tree partially disappears, the solution is: edit -> axis property, to open the property window, and then close it.

4. save to bmp file. I got a bmp image of 50MB

[something not about debugging] Rediscovering Justin Bois

Today I discovered something new from my old memory.

One of the most popular lecturers at Caltech, Justin Bois, is actually not someone new to me, although I thought taking his programming bootcamp this summer was our first meet.


The fact is, I've already seen him 5 years before , in Prof. Quinlan's physical biochem class at UCLA. She asked him to cover one lecture. He impressed me with his extremely clear Baritone voice. He broke down the concepts and equations to something very easy to understand, so easy that I felt it was a little bit boring to listen to him to repeat.

Now fastfoward to the year of 2016, I just realized that Caltech is really a magnetic bar, with different people around the world spinning around it, and finally some of them may meet again here.

So whenever I come across some one familiar or unfamiliar, I should be prepared to know the fact that actually we've met before.

new phishing email : We could not deliver your parcel, #00693494

from: arnold.jensen@ventagroup.ru

Dear Customer,

Courier was unable to deliver the parcel to you.
Delivery Label is attached to this email.

Thank you for choosing FedEx,
Arnold Jensen,
Sr. Support Manager.

New Phishing email: Problem with parcel shipping, ID:0000292901

jeffery.peterson@sristamford.com

Dear Customer,

We could not deliver your item.
Delivery Label is attached to this email.

Yours sincerely,
Jeffery Peterson,
Station Manager.

mm10 v.s. mm9 chromosome sizes

some chromosomes became larger while others smaller.
Note that Y chromosome got significantly larger in mm10 annotation

wget: 403 forbidden

try:
1.
use https:// instead of http://

2.
specify username and password if the website needs them