Question

how to draw best fit line?
I use : F=[200000;250000;270000]; G=[8000;12000;13000]; figure plot(F, G, 'go') hold on; coeffsss = polyfit(F, G...

8 years ago | 1 answer | 0

1

answer

Question

how to plot a normal distribution and calculate mean and standard deviation ?
I have a data which is (4259*1 cell) <</matlabcentral/answers/uploaded_files/37168/mean.jpg>> i want to get its normal dis...

8 years ago | 2 answers | 0

2

answers

Question

HOW TO REMOVE QUOTE MARK ?
I have a data (4259*1 cell ) ex: '9' <</matlabcentral/answers/uploaded_files/37164/6.jpg>> I want to remove the quotes m...

8 years ago | 3 answers | 0

3

answers

Question

how to calculate the correlation coefficient of two data sets ( containing dates) ?
I have to column arrays which containing dates... <</matlabcentral/answers/uploaded_files/37086/ask.jpg>> I want to calcul...

8 years ago | 1 answer | 0

1

answer

Question

how can I divide x-axis background into different colored zones?
I want to divide x-axis background into different colored\grid zones to have a shape like this: <</matlabcentral/answers/...

8 years ago | 1 answer | 0

1

answer

Question

how to sort cells by date?
i have a column of dates DD\MM\YYYY, i want to sort them by date . <</matlabcentral/answers/uploaded_files/36117/date.jpg>> ...

8 years ago | 1 answer | 0

1

answer

Question

how to calculate the slope of a line?
I have a data A,B and I want to calculate the slope between two existing points <</matlabcentral/answers/uploaded_files/35820...

8 years ago | 2 answers | 2

2

answers

Question

rotate x tick label "error"
i am trying to rotate x tick label, so i use a file exchanger it works one time but on another data it gives me an error: ...

8 years ago | 0 answers | 0

0

answers

Answered
Quitting matlab unresponsive due to memory (maybe)
you can exit from some matlab versions by: - Ctrl + C or - Ctrl + Break

8 years ago | 0

Answered
Loading Large CSV files
you can split the file, by any free program.

8 years ago | 0

Question

how to save all the data?
I am using this code to search for a word in a cell, and save all the row: D=alldata(:,1:5); idx = cellfun('isclass',...

8 years ago | 1 answer | 0

1

answer

Question

search for a word in a cell
I have a data which is 20*55 cell and I want to *search for a word* in this cells I search in *column* 51,52,53,54 & 55(wh...

8 years ago | 1 answer | 0

1

answer

Question

how to adjust graph labels ?
I use this code to label the graph: <</matlabcentral/answers/uploaded_files/34784/word%20hist.jpg>> [ndata2 text2 all...

8 years ago | 1 answer | 0

1

answer

Question

how to rotate X Tick Label ?
I am using matlab R2009a and matlab R2012a I want to rotate x tick label 45 degree, I use this code: figure('color','...

8 years ago | 1 answer | 1

1

answer

Answered
combine cells with unequal dimensions
this code do what I want : clear all; clc tic [ndata2 text2 alldata2] = xlsread('all.xlsx','all10t14'); [ndata text allda...

8 years ago | 0

Question

separate empty cells (NaN) from others
I have a table of cells ( ex: 100*75 cell) and i want to focus on column 12 , if any cell in it is NaN (empty) , i want to s...

8 years ago | 1 answer | 0

1

answer

Answered
xlswrite It may be locked by another process
to save in excel sheet xlswrite('filename.xls',data,1) ; %% where data is the answer you want to save and '1' the sheet nu...

8 years ago | 0

Question

how to read a text file with delimiter ?
I have a large text file(.txt) with delimited data , delimiter (|) which contain numbers, texts, empty cells <</matlabcent...

8 years ago | 1 answer | 0

1

answer

Question

combine cells with unequal dimensions
i have two tables ( A 13*52 cell & B 19*75 cell ) A <</matlabcentral/answers/uploaded_files/34626/1.jpg>> & B ...

8 years ago | 1 answer | 0

1

answer

Answered
Count word frequency, please help
it works... buffer = [alldata(:,51), repmat( {' '}, numel( alldata(:,51) ), 1 )]' ; buffer = strtrim( [buffer{:}] ) ; C =...

9 years ago | 0

Question

Count word frequency, please help
I have a column which contain cells each contain a text, and i want to *count the frequency of each word* I write this code -...

9 years ago | 2 answers | 1

2

answers

Question

why nobody answer me ?
how to do text classification at matlab? I have a data ( 100 text each about 2-3 sentences) i want to classify them. how i...

9 years ago | 0 answers | 0

0

answers

Question

how to do a text classification ?
i have some data(texts) and i want to classify them. and do a word histogram what is the functions that do this?

9 years ago | 0 answers | 0

0

answers

Question

Text classification and words histogram
i have some data texts (describe device failures) and i want to classify them. for example (all texts=10 : battery failur...

9 years ago | 1 answer | 0

1

answer

Question

how to group rows by date
i have this data <</matlabcentral/answers/uploaded_files/31417/date.jpg>> i want to group\sort them to be something like t...

9 years ago | 1 answer | 0

1

answer

Question

how to search in more than one column?
how to search by a word in three or four columns if exist record this column <</matlabcentral/answers/uploaded_files/31355/...

9 years ago | 0 answers | 0

0

answers

Question

how I can minimize time of running of a code
I use a code to categorize data (by searching in text for words) this is the data(it consists of 40000 row): <</matlabcentra...

9 years ago | 0 answers | 0

0

answers

Answered
for loop to convert cells of column to string
I found this answer: [R,C]=size(data); H=data; for k = 1:R if isnan(H{k}) H{k} = ''; end end it was answer...

9 years ago | 0

| accepted

Question

for loop to convert cells of column to string
i have a data which is a column of cells (some string and some douple), i search for some words in it <</matlabcentral/answer...

9 years ago | 1 answer | 0

1

answer

Question

what is meant by this error" Dispatch Exception"?
Invoke Error, Dispatch Exception when i running a code to open a excel sheet it gives me this error Invoke Error, Dis...

9 years ago | 1 answer | 0

1

answer