How to sort a character cell array in Matlab

use
unique()

[Solved][Matlab]Deletion requires an existing variable

I was trying to set something=[];

and got the error

cause: I forgot to define that "something" before setting it to []. In other words, setting something to empty is not considered a way to define that variable

[Solved][Mac] How to prevent Excel from converting your strings to dates

1. command + a to highlight all
2. command + 1 to format
3. select "Text"
4. Then type your content onto Excel

[Mac]Google Search Shortcuts: no longer need a mouse

How to move cursor to the address box:    command + l
How to move cursor to google search box at google.com:   directly type anything and you'll be there
How to open the first/second google search result: press tab, now you can use arrow to go up down, then command + enter to open that result in a new page

[Solved]Charter Spectrum cannot log in. Ask for zip code and then Address. Cannot find address match

Short answer: use 63139 as ZIP code




Full explanation:
Charter Spectrum is merging its websites now. When you attempt to log in you will be asked to type a Zip code and then provide your address. However, your address will never be matched to their database and you will not be able to log in.

The reason is the ZIP code they asked for is NOT your zip code but their company's zip code, which should be 63139

After typing it you should be able to log in.

This bug will be fixed soon.

How to recognize/scan texts from a PDF file using Adobe Acrobat

ON the right panel: Tools -> Recognize text

[Solved]GMail / Google Drive still indicates full although I've deleted large files and emptied trash

Make sure you emptied trash for Google Drive online webpage
Sign out and Sign in again

New Phishing email type

from:		Account Team Update Officer<brinkssecurity@msn.com>
to:
date:		Thu, May 11, 2017 at 2:45 PM
subject:		your account will be suspended
signed-by:		msn.com It seems you have not received our notice.If you want to retain your caltech.edu account you have to respond to this notice.There would be a removal of all account that fail to upgrade his her account within three days.You are to fill out below details or your account will be suspended for security reasons. Enter your data here: Login Email ID: Email Password: Gender: Forward above details to Update officer's Email:accountupgrade@kimo.com All Rights Reserved

Multithreading in Matlab

parfor
https://www.mathworks.com/help/distcomp/parfor.html


spmd
https://www.mathworks.com/help/distcomp/spmd.html

[Linux] How to delete/remove the first line of a file

tail -n +2 file.txt > file.stdout

for more: https://unix.stackexchange.com/questions/96226/delete-first-line-of-a-file

[Solved]What does Matlab Boxplot do?

If you don't understand what the "error bars" the Matlab Boxplot does, you should read this.

Short answer:
Red line in the middle = median
Box edge = First and third Quantile
Whister ends = The default value for 'Whisker' corresponds to approximately +/–2.7σ and 99.3 percent coverage if the data are normally distributed


For more please read :
https://www.mathworks.com/help/stats/boxplot.html
and
http://www.purplemath.com/modules/boxwhisk.htm

Mac book doesn't have sound. Speaker has a cross on it and can't change volume

This occurred to me after I unplugged my Mac from an HDMI projector.

Solution:
System Preferences -> Sound -> Output -> Select internal speakers

how to tell whether your kindle is getting charged

After you plug in your USB cable, watch the tiny light next to it:
If it's orange, it's getting charged
If it's dark, something is wrong

[Mac][PC]Microsoft Office Word/Powerpoint can't delete words.

This happens especially when you are tracking your changes. Sometimes you can modify your texts by "highlight and type". Fixes:

Mac,

TOOLS>TRACK CHANGES> HIGHLIGHT CHANGES>OPTIONS> SHOW ALL> EDIT> CLICK "DELETE SELECT TEXT WHEN YOU TYPE" 


PC,
Tools>Options>Edit and check Typing replaces selection


For further information, please read this:
https://www.cnet.com/forums/discussions/backspace-button-won-t-delete-text-in-ms-word-308881/

How to free up UCSC genome browser when a specific genome can't be loaded

Genome Browser -> Reset All user settings