How to limit a string?

Trying to figure out how to limit a string in terms of characters?

[Stephen Cobeldick]

Original question by Ibro Tutic on 25th November 2015 retrieved from Google Cache:

http://web.archive.org/web/20201226071607/https://webcache.googleusercontent.com/search?q=cache%3AzlNCRPErPIsJ%3Ahttps%3A%2F%2Fwww.mathworks.com%2Fmatlabcentral%2Fanswers%2F257458-how-to-limit-a-string

How to limit a string?

Hi,

I have some data that I am reading from a text file, and some of the data is PowerCylinderTemperatureHistogram and some is PowerCylinderTemperatureHistogramBreakpoints. Now when my code is filtering through the text, it associates the PowerCylinderTemperatureHistogramBreakpoints with PowerCylinderTemperatureHistogram, how can I limit that text that is chooses to JUST PowerCylinderTemperatureHistogram and not the Breakpoints?

 clear all;
close all
clc
 projectdir = 'C:\Users\it58528\Documents\Power Cylinder Temp and Rainflow Cycle Counter - After 16500 Cycles - 2015-10-12.prm';
fid = fopen(projectdir);
rows = textscan( fid, '%s', 'Delimiter', '\n' );
fclose( fid );
rows = rows{:};
str = 'RainflowCycleCounterHistogram';  % avoid magic number
len = length( str );
is_counter   = strncmp( str, rows, len ); 
counter_rows = rows( is_counter );
%
str = 'RainflowCycleMeanBreakpoints';  
len = length( str );
is_mean   = strncmp( str, rows, len ); 
mean_rows = rows( is_mean );
%
str = 'RainflowCycleRangeBreakpoints';  
len = length( str );
is_range   = strncmp( str, rows, len ); 
range_rows = rows( is_range );
%
str = 'PowerCylinderTemperatureHistogram';
len = length (str);
is_temp   = strncmp ( str, rows, len );
temp_rows = rows ( is_temp);
%
str = 'PowerCylinderTemperatureHistogramBreakpoints';
len = length (str);
is_break   = strncmp ( str, rows, len );
break_rows = rows ( is_break);
counter_matrix = nan( 10, 10 );
for jj = 1 : length( counter_rows )
%    
    cac = textscan( counter_rows{jj}, '%*s%d%d%f'   ...
                ,   'Delimiter'          , ' []:'   ...
                ,   'MultipleDelimsAsOne', true     ); 
%            
    counter_matrix( cac{1}+1, cac{2}+1 ) = cac{3};  % one based      
end
mean_vector = nan( 1, 10 );
for jj = 1 : length( mean_rows )
%    
    cac = textscan( mean_rows{jj}, '%*s%d%f'        ...
                ,   'Delimiter'          , ' []:'   ...
                ,   'MultipleDelimsAsOne', true     ); 
%            
    mean_vector( 1, cac{1}+1 ) = cac{2};  % one based      
end
range_vector = nan( 1, 10 );
for jj = 1 : length( range_rows )
%    
    cac = textscan( range_rows{jj}, '%*s%d%f'        ...
                ,   'Delimiter'          , ' []:'   ...
                ,   'MultipleDelimsAsOne', true     ); 
%            
    range_vector( 1, cac{1}+1 ) = cac{2};  % one based      
end
temp_matrix = nan ( 1, 12 );
for jj = 1 : length ( temp_rows )
 %   
    cac = textscan( temp_rows{jj}, '%*s%d%f'        ...
                ,   'Delimiter'          , ' []:'   ...
                ,   'MultipleDelimsAsOne', true     ); 
 %           
    temp_matrix( 1, cac{1}+1 ) = cac{2};    %one based
end
temp_vector = nan ( 1, 11 );
for jj = 1 : length ( break_rows )
%
    cac = textscan( break_rows{jj}, '%*s%d%f'        ...
                ,   'Delimiter'          , ' []:'   ...
                ,   'MultipleDelimsAsOne', true     ); 
%
    temp_vector( 1, cac{1}+1 ) = cac{2};
end

Answer 1

[dpb]

Test for the existence of the complete string and exclude...set those lines in the initial array =[] before processing the rest.

[Ibro Tutic]

I think I have it figured out, thanks.