How to multiply a number of files by a single file ??

Dear All,

I am having monthly data files(2002-2012) with three columns lat lon and value. I need to multiply these monthly data files by a scaling factor file which also a three column file (lat lon and value).Data files need to be multiplied by values of the scaling factor file, Please help me

Answer 1

[Walter Roberson]

http://matlab.wikia.com/wiki/FAQ#How_can_I_process_a_sequence_of_files.3F

[Chris Martin]

Not useful, be specific

[Walter Roberson]

Read your scale factor file. Then use the techniques from the link above to read one monthly data file at a time, use .* to do the multiplications, and then do whatever with the result.

[Chris Martin]

I am not finding any such code

[Walter Roberson]

Does your situation match the case "If the files that you want to process are sequentially numbered", or does your situation match the case "f you want to process all the files whose name matches a pattern in a directory" ? When you visited that link I posted about How can I process a sequence of files, do the three sample blocks of code there show up empty?

[Guillaume]

Maybe, it would be better to turn the question around and ask Chris, which step is causing him problem:

1. read the scaling file
2. get or create the list of files to process
3. iterate over each file and
4. read the file
5. multiply by the scaling file
6. write to a new file