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1.65034E,19 19 e数字便民

字数作文 zuowen 2浏览

【 – 字数作文】

第一篇:《txt与matlab编程小刀笔记》

即使data.txt的数据格式是这样的也可以,需要转换。

1 2 3;4 5 6;7 8 9;10 11 12 ;13 14 15 ;16 17 18 ;19 20 21 ;22 23 24 ;25 26 27 ;28 29 30 ;31 32 33 ;34 35 36 ;

%程序为:

clc;clear;

load data.txt

data

AA=[reshape(data,3,length(data)/3)]'

m=4 %相当于你的2000

N=length(data)/m %相当于3000000/2000

for k=0:N/3-1

A(:,:,k+1)=AA((m*k+1):(m*k+m),:);%变为三维矩阵了。

end

A

运行结果:

data =

Columns 1 through 21

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21

Columns 22 through 36

22 23 24 25 26 27 28 29 30 31 32 33 34 35 36

AA =

1 2 3

4 5 6

7 8 9

10 11 12

13 14 15

16 17 18

19 20 21

22 23 24

25 26 27

28 29 30

31 32 33

34 35 36

m =

4

N =

9

A(:,:,1) =

1 2 3

4 5 6

7 8 9

10 11 12

A(:,:,2) =

13 14 15

16 17 18

19 20 21

22 23 24

A(:,:,3) =

25 26 27

28 29 30

31 32 33

34 35 36

matlab可以读 txt文件。使用 fopen,fread,fclose函数。关键是数据的格式,从而写相应的fread语句。

比如你的数据矩阵是

F=[160, 120; 159, 110];

那么讲该数据写入一个data文件是

filename='test.dat';

fid = fopen(filename,'w');

count = fwrite(fid,F','uchar');

fclose(fid);

将上述数据读出并存入2*2得矩阵是

filename='test.dat';

nSize=4;因为上述矩阵共有4个数据

nRow=2;

nColumn=2;

fid = fopen(filename,'rb');

temp = fread(fid, nSize, 'uchar');

fclose(fid);

result = reshape(temp, [nRow nColumn])';

%% 先打开文件

[filename,filepath]=uigetfile('*.txt','Select Input file');

file = [filepath filename];

fid = fopen(file,'rt');

if fid == -1

('Error opening the file')

end

%%读取文件

while 1

nextline = fgetl(fid); %读第一行

if ~isstr(nextline), break, end %读到最后跳出

disp(nextline);%这行可以不要

a = sscanf(nextline, ' %f %f ');%读取数据,根据你自己的需要改

end

end

导师让我做一个matlab曲线图。需要从txt文档中调用数据。

有3个txt文档,每个文档中都有很多组二维数据(x,y),每个文档中x的值不相同,但是都在同一段范围内。请问如何实现啊?

以下是数据:{1.65034E,19}.

txt1:

313.39 1.773E-19

313.54 1.813E-19

313.69 1.757E-19

313.84 1.675E-19

313.99 1.687E-19

314.14 1.744E-19

314.28 1.777E-19

314.43 1.776E-19

314.58 1.846E-19

314.73 2.004E-19

314.88 2.004E-19

txt2:

313.10 1.851E-19

313.25 1.831E-19

313.39 1.772E-19

313.54 1.757E-19

313.69 1.751E-19

313.84 1.696E-19

313.99 1.784E-19

314.14 1.797E-19

314.28 1.806E-19

314.43 1.826E-19

314.58 1.918E-19

314.73 1.920E-19

txt3:

313.10 2.005E-19

313.25 1.934E-19

313.39 1.890E-19

313.54 1.852E-19

313.69 1.865E-19

313.84 1.864E-19

313.99 1.929E-19

314.14 1.916E-19

314.28 1.951E-19

314.43 1.999E-19

314.58 2.124E-19

314.73 2.104E-19

314.88 2.139E-19

315.02 2.148E-19

315.17 2.125E-19

315.32 2.113E-19

315.47 2.118E-19

提问者: xiaochun5243 – 试用期 一级

最佳答案

>> load('d:\txt1.txt');

>> load('d:\txt2.txt');

>> load('d:\txt3.txt');

>> x1=txt1(:,1);

>> y1=txt1(:,2);

>> x2=txt2(:,1);

>> y2=txt2(:,2);

>> x3=txt3(:,1);

>> y3=txt3(:,2);

plot(x1,y1,x2,y2,'r',x3,y3,'k')

load命令一般是对*.dat的数据文件进行读取吧!

我一般导入*.txt格式的数据文件时是先打开workspace窗口,在这个窗口的顶部有个工具按钮“Load data file…”,通过这个打开你的filename.txt文件!这种方法肯定不会有错的,你可以试试看!

matlab读txt文件

2007-03-29 23:01

fid1=fopen('fx.txt','r');

%得到文件号

[f,count]=fscanf(fid,'%f %f',[12,90]);

%把文件号1的数据读到f中。其中f是【12 90】的矩阵

%这里'%f %f'表示读取数据的形势,他是按原始数据型读出

fclose(fid);

%关闭文件

第二篇:《light scattering data动态光散射》{1.65034E,19}.

2.455199e+02, 0.000000e+00, 0.000000e+00

2.472218e+02, 0.000000e+00, 0.000000e+00

2.489355e+02, 0.000000e+00, 0.000000e+00

2.506611e+02, 0.000000e+00, 0.000000e+00

2.523986e+02, 0.000000e+00, 0.000000e+00

2.541482e+02, 0.000000e+00, 0.000000e+00

2.559099e+02, 0.000000e+00, 0.000000e+00

2.576838e+02, 0.000000e+00, 0.000000e+00

2.594700e+02, 2.446660e+01, 7.349509e+00

2.612686e+02, 6.221881e+01, 2.603939e+01

2.630797e+02, 1.000000e+02, 5.607834e+01

2.649033e+02, 8.649644e+01, 8.206097e+01

2.667396e+02, 4.874842e+01, 9.670448e+01

2.685885e+02, 1.097082e+01, 1.000000e+02

2.704503e+02, 0.000000e+00, 1.000000e+02

2.723251e+02, 0.000000e+00, 1.000000e+02

2.742128e+02, 0.000000e+00, 1.000000e+02

2.761136e+02, 0.000000e+00, 1.000000e+02

2.780275e+02, 0.000000e+00, 1.000000e+02

2.799547e+02, 0.000000e+00, 1.000000e+02

2.818954e+02, 0.000000e+00, 1.000000e+02

2.838494e+02, 0.000000e+00, 1.000000e+02

2.858170e+02, 0.000000e+00, 1.000000e+02

2.877982e+02, 0.000000e+00, 1.000000e+02

2.897932e+02, 0.000000e+00, 1.000000e+02

2.918019e+02, 0.000000e+00, 1.000000e+02

2.938247e+02, 0.000000e+00, 1.000000e+02

2.979123e+02, 0.000000e+00, 1.000000e+02

2.999773e+02, 0.000000e+00, 1.000000e+02 3.020567e+02, 0.000000e+00, 1.000000e+02 3.041505e+02, 0.000000e+00, 1.000000e+02

3.062588e+02, 0.000000e+00, 1.000000e+02

1.000000e+00, 0.000000e+00, 0.000000e+00

1.307610e+00, 0.000000e+00, 0.000000e+00

1.709844e+00, 2.830923e+00, 8.057604e-01

2.235809e+00, 3.499770e+00, 1.801894e+00

2.923566e+00, 2.830923e+00, 2.607654e+00

3.822883e+00, 0.000000e+00, 2.607654e+00

4.998840e+00, 0.000000e+00, 2.607654e+00

6.536533e+00, 0.000000e+00, 2.607654e+00

8.547235e+00, 0.000000e+00, 2.607654e+00

{1.65034E,19}.

1.117645e+01, 0.000000e+00, 2.607654e+00

1.461444e+01, 0.000000e+00, 2.607654e+00

1.910998e+01, 0.000000e+00, 2.607654e+00

2.498840e+01, 0.000000e+00, 2.607654e+00

3.267508e+01, 0.000000e+00, 2.607654e+00

4.272626e+01, 0.000000e+00, 2.607654e+00

5.586929e+01, 0.000000e+00, 2.607654e+00

7.305524e+01, 0.000000e+00, 2.607654e+00

9.552775e+01, 0.000000e+00, 2.607654e+00

1.249130e+02, 0.000000e+00, 2.607654e+00

1.633375e+02, 0.000000e+00, 2.607654e+00

2.135818e+02, 1.411220e+01, 6.624384e+00

2.792816e+02, 4.668941e+01, 1.991351e+01

4.775280e+02, 1.000000e+02, 7.406681e+01

6.244203e+02, 6.950243e+01, 9.384916e+01

8.164982e+02, 2.161008e+01, 1.000000e+02 1.067661e+03, 0.000000e+00, 1.000000e+02

1.396084e+03, 0.000000e+00, 1.000000e+02

1.825534e+03, 0.000000e+00, 1.000000e+02

2.387086e+03, 0.000000e+00, 1.000000e+02

3.121377e+03, 0.000000e+00, 1.000000e+02 4.081544e+03, 0.000000e+00, 1.000000e+02

5.337067e+03, 0.000000e+00, 1.000000e+02

3.457911e+02, 0.000000e+00, 0.000000e+00

3.488295e+02, 0.000000e+00, 0.000000e+00

3.518945e+02, 0.000000e+00, 0.000000e+00

3.549865e+02, 0.000000e+00, 0.000000e+00

3.581057e+02, 0.000000e+00, 0.000000e+00

3.612523e+02, 0.000000e+00, 0.000000e+00

3.644265e+02, 0.000000e+00, 0.000000e+00

3.676287e+02, 2.051005e+01, 6.230488e+00

3.708589e+02, 5.996116e+01, 2.444533e+01{1.65034E,19}.

3.741176e+02, 1.000000e+02, 5.482306e+01

3.774048e+02, 8.925565e+01, 8.193690e+01

3.807210e+02, 4.977151e+01, 9.705635e+01

3.840663e+02, 9.690145e+00, 1.000000e+02

3.874409e+02, 0.000000e+00, 1.000000e+02

3.908453e+02, 0.000000e+00, 1.000000e+02

3.942795e+02, 0.000000e+00, 1.000000e+02

3.977440e+02, 0.000000e+00, 1.000000e+02

4.047645e+02, 0.000000e+00, 1.000000e+02 4.083210e+02, 0.000000e+00, 1.000000e+02

4.119088e+02, 0.000000e+00, 1.000000e+02

4.155282e+02, 0.000000e+00, 1.000000e+02

4.191793e+02, 0.000000e+00, 1.000000e+02

4.228625e+02, 0.000000e+00, 1.000000e+02

4.265781e+02, 0.000000e+00, 1.000000e+02

4.303263e+02, 0.000000e+00, 1.000000e+02

4.341075e+02, 0.000000e+00, 1.000000e+02

4.379219e+02, 0.000000e+00, 1.000000e+02

4.417698e+02, 0.000000e+00, 1.000000e+02

4.456515e+02, 0.000000e+00, 1.000000e+02

4.495673e+02, 0.000000e+00, 1.000000e+02

4.535176e+02, 0.000000e+00, 1.000000e+02

4.575025e+02, 0.000000e+00, 1.000000e+02

4.525030e+02, 0.000000e+00, 0.000000e+00

4.559177e+02, 0.000000e+00, 0.000000e+00

4.593582e+02, 0.000000e+00, 0.000000e+00

4.628246e+02, 0.000000e+00, 0.000000e+00

4.663173e+02, 0.000000e+00, 0.000000e+00

4.698362e+02, 0.000000e+00, 0.000000e+00

4.733817e+02, 0.000000e+00, 0.000000e+00

4.769540e+02, 0.000000e+00, 0.000000e+00

4.805533e+02, 0.000000e+00, 0.000000e+00

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