harveypollins2's articles:

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Unusual plotting problem 2 31 (4/12/2009 3:11:43 PM) comp.soft-sys.matlab Hi All Please can yopu help Does somebody out there know how to do the following. Consider a file called tot_signal that contains uniformally sampled data . The file contains say 30 data points. I set up... Harvey

puzzling fft question 1 24 (3/28/2009 5:54:14 PM) comp.soft-sys.matlab Hi Please can someone out there shed light on the following problem. Using the program below I generate a 32Hz sine wave with a 0.2 rad offset. Apply a a 512 fft and note in which bin the signal resides. Wh... Harvey

Simple file question 2 20 (3/14/2009 10:15:48 AM) comp.soft-sys.matlab Hi My question is really simple file question Assume you have 2 column vectors (of equal length ) Say A and B I want to strore data in the same format (i.e 2 vertical colums) and call it filename.txt . The... Harvey

PIKAIA problem URGENT 0 122 (3/7/2009 6:40:03 AM) comp.ai.genetic Hi I am an astrophysics student trying to use the genetic algorithm PIKAIA. Is there anyboy out there that has experience using the algorithm that I can ask a few questions. All responses ar welcome ... Harvey

Converting numbers in a vector to strings 1 34 (2/25/2009 10:56:39 PM) comp.soft-sys.matlab Hi Can someone please help If you have something such as a=1234 the resultant display is a= 1234 If you have something such as a=num2str(1234) the resultant display is a= 1234 i.e without th... Harvey

matlab file problem 3 24 (2/25/2009 6:02:19 PM) comp.soft-sys.matlab Hi please help!!!!!!! Can someone please tell me IN SIMPLE TERMS how to generate a data file in Matlab that can be read by a fortran77 program. It would be even better if someone can write a bit of code... Harvey

2 Simple questions about files 0 21 (1/29/2009 1:07:41 PM) comp.soft-sys.matlab Hi Please can someone help with 2 questions Let a= [1 2 3 4 5 ; 6 7 8 9 10] a) I want to save the data in the same format i.e 2 rows 5 collumns. How do I do it? b) If I mix text with data i.e. a=... Harvey

Problem producing a 3d mesh plot 1 23 (12/6/2008 4:03:31 PM) comp.soft-sys.matlab Hi Can someone please help The plot3(x,y,twoD,'*') works , BUT I would like to produce a 3D meshplot of twoD The length of X and Y are the same. The range of values for both X Y is 0 to 1 The bare bones o... Harvey

Plotting a 3Dmesh picture 0 18 (12/6/2008 9:51:20 AM) comp.soft-sys.matlab Hi Can someone please help The plot3(x,y,twoD,'*') works , BUT I would like to produce a 3D meshplot of twoD The length of X and Y are the same. The range of values for both X Y is 0 to 1 The bare bones o... Harvey

Problem producing a 3d mesh picture 1 24 (12/5/2008 4:22:04 PM) comp.soft-sys.matlab Hi Can some one please help I have a function Z which a function of 2 variables X and Y . I can use the plot3 function to create a 3D picture, but what is the script to produce a 3D mesh picture Thanks v... Harvey

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Some simple Fortran77 questions 13 81 (11/16/2008 2:36:18 PM) comp.lang.fortran Hi Please can someone tell me how to a) test for the existence of a file I have tried to use IOSTAT i.e. open (5,file='test_file.txt',IOSTAT=ERR), but this will not compile. b) test for the end of a f... harveypollins2 (29)

Simple file question 8 50 (11/11/2008 6:22:02 PM) comp.lang.fortran Hi Please can someone help. What I want to do is to store a real number in a file that already contains rreal data without affecting the original data. Thanks Harvey ... harveypollins2 (29)