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Question
Error in loading data from AWS S3
I tried to get a files from a bucket i creat in S3 I use a code i saw in different places: setenv('AWS_ACCESS_KEY_ID', <...
mer än 7 år ago | 2 answers | 1
2
answersplots working on matlab 2013b but not on 2016b
The plot system was change in 2014b and some function are not compatible. You need to review all your plots and update it. re...
mer än 8 år ago | 0
Question
How I can find the directory the script or function running now is
I am running a script and i want to know the path it is with out using the script name. The path is in 'matlabpath' so by usi...
mer än 8 år ago | 1 answer | 0
1
answerQuestion
Compile a file in windows to run on MAC os or UBUNTO
I am using MATLAB Compiler to create a program in my PC (win 8). It create a .exe file that i can run on another windows PC. ...
nästan 9 år ago | 1 answer | 0
1
answerHow can i make program for method of iteration ...please help me out .. equation is X^3-2x=1
you need to find a function of X from your equation for your example X^3-2X=1 you get X(X^2-2)=1 and then X=1/(X^2-2) so ...
ungefär 9 år ago | 0
| accepted
How to merge excel files?
This code will work, If you have the same number of column in the same sheets (all sheet1s have the same columns number, ext.) ...
mer än 9 år ago | 1
| accepted
Question
select string by condition
if i want select value by condition i can write (a==1)*3+(a~=1)*5 when a will get 3 if a is 1 or 5 if not. can i do s...
mer än 10 år ago | 1 answer | 0
1
answerHow can I count the number of elements of a given value in a matrix?
first use <http://www.mathworks.com/help/matlab/ref/floor.html floor> to round it. after this run double loop, one on latitud...
mer än 10 år ago | 0
Question
bug in zoom in timeseries plot
before i report a bug i want to ask if someone have a problem with the zoom button on a timeseries plot. i create a time-seri...
nästan 11 år ago | 0 answers | 0
0
answersHow Can I Assign variable Name?
you can use <http://www.mathworks.com/help/matlab/ref/eval.html eval> function.but it not recommended. and you cannot use / in ...
nästan 11 år ago | 0
create new matrix with special structure
The simple way: for j=0:2:m-1 for i=1:n newmatrix(1+j,2*i-1:2*i)=p(j+[1 2],1); end end
nästan 11 år ago | 0
Concatenate two cells into another
do you try to use <https://www.mathworks.com/help/matlab/ref/strcat.html strcat>? It allow you to concatenate two cells. ...
nästan 11 år ago | 0
| accepted
i dont know why my code is not working..
plot(f,Pyy(1:2^(N-1))); the length of pyy in 14 so you cannot take cell number 16384 (2^13). another problem: length(f)=81...
nästan 11 år ago | 0
Save figures in a subfolder after 2 for loops?
use <http://www.mathworks.com/help/matlab/ref/mkdir.html mkdir> to create a folder and change the folder name you save on to the...
nästan 11 år ago | 0
| accepted
Question
using xlsread for cell variable
I have a data store in .csv files. in the data i have vector of number that i want get in cell not in string (and some more data...
nästan 11 år ago | 2 answers | 0
2
answersQuestion
save an excel file to be read only
can we save data on excel file (by xlswrite function or other way) and define the file to be read-only from matlab?
nästan 11 år ago | 2 answers | 0
2
answersQuestion
find n-st element that meet a logical expression
I have 2 question: 1) find function can give the all n-th element (first or last) that meet a logical expression. i want only t...
nästan 11 år ago | 1 answer | 0
1
answerFunction to aggregate data
first you don't need to put them together, you just need to track the line you want and take them from the second matrix (for ex...
nästan 11 år ago | 0
Question
dynamic y-tick label
It have a way to save the y-tick to be dynamic and decide what will be the label format. In default is show 5 number, i want to...
nästan 11 år ago | 1 answer | 0
1
answerQuestion
save size of Matlab environment variable
Hi, I have some question about the presentation of variable in Variables window. 1) I have a matrix with 18 Column. when ...
nästan 11 år ago | 1 answer | 0
1
answerQuestion
It is possible to find all m-file i call to another m-file?
my problem is that i create a function and call it in several programs (m-files), now i find a better way and change the functio...
ungefär 11 år ago | 1 answer | 0
1
answerProblem in using the "While" loop function
you need to define all variables. n(1)=n0; while 1 if n(end) <=0 break; end n(end+1)=n(end)-S*exp(...
ungefär 11 år ago | 0
| accepted
plotting using data from a cell array
you can use <http://www.mathworks.com/help/matlab/ref/bar.html bar> and specify xlabel name. figure name = {'m1';'m2';'m...
ungefär 11 år ago | 0
Help: XLSREAD with an unpsecified number of colums
you can defined it in string. for example if you have 4: N=4; st = ['A1:E' num2str(N)]; inputdata=xlsread('c:\thm....
ungefär 11 år ago | 1
I having two time series one is monthly and another one is in daily, now i need to average the daily time series to the particular time values of monthly time series
find the value of middle of month by m=1:12; d=[1 0 1 0 1 0 1 1 0 1 0 1]; mid = datenum(0,m,15+d)/365 when m is th...
ungefär 11 år ago | 0
How to find common time between two time series
tc.time give you all times in time serie in array. so you can find common data between 2 array. for this you can use <http://...
ungefär 11 år ago | 0
How to delete multiple rows from an excel file?
when you import data by xlsread function, you get 3 matrix. one of numbers, one of text and one with both of them and it is a ce...
ungefär 11 år ago | 0
| accepted
Question
sum of vector by group
i have a vector of numbers a=[1 4 1 -3 -6 9 9 1 1 1 -1 -1 -4] and i group them by their sign (i don't have zero, only po...
ungefär 11 år ago | 1 answer | 1
1
answerHow to fix the error?
you start by l=0.3; and you put this value in k k=l; and because k>1 you do yp(k,:)=y(size(y,1),1:2); bu...
ungefär 11 år ago | 0
| accepted
How to find fifth value after somewhere in a series OR the end of the series, whichever comes first?
you can add max from 1 and 5 before the min and the min from end and 5 after the min. xrangemin=xdata(max(1,find(xdata==x...
ungefär 11 år ago | 0
| accepted
