The Origin Forum

File Exchange

Try Origin for Free

The Origin Forum

All Forums

Origin Forum for Programming

LabTalk Forum

xyz_renka broken ?

Note: You must be registered in order to post a reply.
To register, click here. Registration is FREE!

Screensize:

UserName:

Password:

Anti-Spam Code:

Format Mode:

Format:

Message:

* HTML is OFF
* Forum Code is ON

Smilies

Check here to include your profile signature.
Check here to subscribe to this topic.

T O P I C R E V I E W
HaroldPit	Posted - 11/24/2011 : 11:27:40 AM Origin Ver. and Service Release: Origin Pro 8.5.0G SR1 Operating System: WinXP Hi everyone, I have a problem with the xyz_renka-function when it's called from the "command line". I'm sure it worked at some point in my scripting-endeavour and it still works in projects that I haven't worked in before so I likely just screwed something up. Unfortunately I cannot figure out, what went wrong and how to fix it. Whenever I use the xyz_renka function now it returns a matrix with only "--" in the uppermost rows(depending on the total amount of rows) and very small values for the rows at the bottom (something like "1.23456E-200"). I tried the following commands xyz_renka 3; xyz_renka 3 rows:=5 cols:=5; Where the last one returns this: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 4,22576E-202 6,02098E-200 1,19997E-199 1,79784E-199 2,39572E-199 1,6903E-201 2,40839E-199 4,79988E-199 7,19137E-199 9,58286E-199 However when I use the XYZ-Gridding Assistant it works just fine (altough it fails to recognize the correct number of rows). Maybe I assigned a variable, that is used by the gridding function but I cannot figure out what went wrong. I would be glad for any hint what to look into.
3 L A T E S T R E P L I E S (Newest First)
HaroldPit2	Posted - 12/01/2011 : 3:31:08 PM Awesome, thanks for the help Greg. I can't wait to try it tomorrow. quote: which has already pre-analysed your data I was suspecting something along these lines. Those nasty helpful blackboxes. FYI: I lost my login credentials so I had to register a new count.
greg	Posted - 12/01/2011 : 11:38:26 AM Some of the 'raw' gridding functions (like xyz_renka) are not really useful since they rely on other internal parameters having been set by the 'Convert Worksheet to Matrix' dialog, which has already pre-analysed your data and determined suitable conversion method, columns, rows, etc. when it opens. Since 8.5 we have provided the XYZ2MAT and XYZ2MATLOG X-Functions to leverage the pre-analysis used in the dialog. In your case, you can use XYZ2MAT 3 settings:ConvertToMatrix:=2; // Here, 2 is Renka_Cline For all methods: 0 Regular 1 Sparse 2 Renka-Cline 3 Shepard 4 Thin Plate Spline 5 Kriging Correlation 6 Weighted Average You can also control data examination and duplicate handling: XYZ2Mat iz:=[Book1]Sheet1!(A,B,C) settings.ExamData.XPrecision:=1E-8 settings.ExamData.YPrecision:=1E-8 settings.ExamData.RemoveDuplicate:=0 settings.ConvertToMatrix:=2 om:=<new>; For Duplicate handling: 0 Mean 1 Median 2 Minimum 3 Maximum 4 Sum 5 None I notice your data is really regular data with some noise in the XY coordinates and some missing values. Consequently, xyz_regular 3; will work for you even though you will get a message about it not being regular (due to tolerance). The best method (although slow) for your data (which is very noisy) is Thin Plate Spline: xyz_tps 3; run.section(Plot3D,ColorMap);
Penn	Posted - 11/29/2011 : 04:17:40 AM Hi, Please send your data or project to Technical Support. Then we can have a try with your data to see whether we can reproduce your problem. Please refer to this post in your email. Penn

The Origin Forum

Snitz Forums 2000