[Show all top banners]
Back to: Chautari Refresh page to view new replies
 Help required on Matlab coding
[VIEWED 6688 TIMES]
SAVE! for ease of future access.
Posted on 04-28-06 8:55 AM     Reply [Subscribe]
Login in to Rate this Post:     0       ?    
 

i have an array of data, 24000 rows and six columns and need to run PCA on the data to reduce the data. Though PCA only allows me to run six rows at a time due there being sic columns.
Anyone know any code that will help so that i can run PCA six rows at a time until it executes all 24000 lines?
 
Posted on 04-28-06 1:23 PM     Reply [Subscribe]
Login in to Rate this Post:     0       ?    
 

why another thread for the same question ? already so many people contributed their knowledge in the same thread you created few days back.

anyway, your question is not clear. in PCA, there must be some columns representing some items and rows representing observations from some subjects. further, your understanding is questionnable as you need at least 60 rows for 6 columns to build a model using PCA, why six at a time? to be frank, your question does not make any sense to me.

you should try to explore factor structure from some number of rows as you have so maany rows or responses. and use confirmatory factor analysis in other sets of validation rows.

maybe, you could explain more about your problem.
 


Please Log in! to be able to reply! If you don't have a login, please register here.

YOU CAN ALSO



IN ORDER TO POST!




Within last 200 days
Recommended Popular Threads Controvertial Threads
TPS to F1 Status.
TPS To F-1 COS
TPS Sakiyo Tara Case is in Court.
Got my F1 reinstatement approved within 3 months(was out of F1 for almost 2 years)
Has anyone here successfully reinstated to F-1 status after a year-long gap following a drop from F-1?
Need Help of IT consultancies
Nepal TPS decision
Supreme Court allows Trump to end TPS for Venezuelans
Any input on remote jobs(IT related or Sales or Marketing)?
2020 : Why No Trump !
Nepal Likely to Get 60-Day TPS Notice
Nepal TPS has been Extended !!!
NEPAL TPS IS GONE
ANA and AJAY KUMAR DEV. RAPISTS CONVENTION
#MAGA#FAFO is delicious
नेपाल मा B. sc गरियो यहाँ फेरी ७० -८० क्रेडिट पढ्नु पर्ने भो
Genuine Question.... Why so many folks still in TPS after 10 years. Is the statistics wrong?
Trump’s “Big Beautiful Bill” is straight-up xenophobic class warfare. Let’s call it what it is.
🛡️ Nepal TPS Holders: Don’t Panic About August 5 — DHS Screwed Up (Maybe on Purpose)
The New Color of Her Flag
NOTE: The opinions here represent the opinions of the individual posters, and not of Sajha.com. It is not possible for sajha.com to monitor all the postings, since sajha.com merely seeks to provide a cyber location for discussing ideas and concerns related to Nepal and the Nepalis. Please send an email to admin@sajha.com using a valid email address if you want any posting to be considered for deletion. Your request will be handled on a one to one basis. Sajha.com is a service please don't abuse it. - Thanks.

Sajha.com Privacy Policy

Like us in Facebook!

↑ Back to Top
free counters