i am new to matlab .this is a text file and how to remove a lot of header files in dis text file and how to plot this data with respect to time versus height please inform me to understand my querstions

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poshan reddy 2014-4-9

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编辑： poshan reddy 2014-4-29

i am new to matlab .this is a text file and how to remove a lot of header files in dis text file and how to plot this data with respect to time versus height please inform me to understand my questions and at at lost i want a plot x-axis showing time and y-axis axis with respect to data

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dpb 2014-4-9

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You mean multiple header lines in a text file? Are they a fixed number or variable?

Look at the optional argument 'headerlines' in

doc textread
doc textscan

for starters, if so...

As for plotting, it all depends on what the data are -- just a x and y or a surface or what.

poshan reddy 2014-4-11

编辑：poshan reddy 2014-4-11

multiple header lines in a text file. and that too i have to plot in x,y and z dimensions.time in x-axis

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dpb 2014-4-26

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在 MATLAB Online 中打开

SOTOO...

c=[];                          % an empty array to collect data into
fmt=repmat('%f',1,4);          % format string for the numeric data 4/record
fid=fopen('31oct97.txt','r');  % open the file, return file handle
while ~feof(fid)               % begin loop until run out of data in file
c=[c;cell2mat(textscan(fid,fmt,187,'headerlines',24))];  % read a chunk/concat onto previous
end

NB: aircode, not tested but basic idea...salt to suit.

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poshan reddy 2014-4-27

编辑：poshan reddy 2014-4-28

thank u sir for ur help .how can i plot this in time series....and also in this data was also gone some what .now in this file timings are differeent how can i plot with exact timings on x-axis and height on y-axis and data u changing with respect to time in the same way time v,w also please give a program

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