How i load a column of float numbers to a vector from a txt file

2 次查看（过去 30 天）
alan
alan 2012-10-30
Hi,
I am a matlab beginer and i want to know how load a column of floating number from a txt file. the file hasnt chars (only numbers) as shown below:
-0.000030517578125
+0.0
-0.000030517578125
-0.000030517578125
-0.000030517578125
-0.49969482421875
-0.000030517578125
-0.000030517578125
+0.0
-0.000030517578125
-0.000030517578125
-0.000030517578125
-0.000030517578125
+0.0001220703125
thanks !!

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回答（2 个）

Sachin Ganjare
Sachin Ganjare 2012-10-30
NumHeaders = 17; %for example
NumDataLines = 1234; %for example
ColNum = 8; %for example
fmt = [ repmat('%*s',1,ColNum-1), '%f%[^\n'] ];
fid = fopen('C:\...\yourfilename.txt', 'rt');
data = textscan(fid, fmt, NumDataLines, 'HeaderLines', NumHeader);
fclose(fid);
Jan
Jan 2012-10-30
编辑：Jan 2012-10-30
fid = fopen('C:\...\yourfilename.txt', 'r');
if fid == -1, error('Cannot open file'); end
data = fscanf(fid, '%g', [1, Inf]);
fclose(fid);

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