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dpb


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5,168 2012 이후 총 참여 횟수

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How to compare two columns in a table and delete that row having same values in that columns?
c=string({'column1' 'column 2' 'columns3' 'ball' 'bat' 'gloves' 'bat' 'gloves' 'bat' 'ball' ...

1일 전 | 0

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Error using corrplot function
OK, I played with one of the sample datasets used for illustrating some other regression stuff...it is possible to start with pl...

1일 전 | 0

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Binomial Distribution when mean and variance is given
Well, sometimes one is given a nonsensical problem -- if so, then one has to inform the requestor of the fact and get a differen...

2일 전 | 0

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2 digits after the dot
In the first case, you'll have to use >> string(arrayfun(@(n)sprintf('%.2f',n),vals,'UniformOutput',false)) ans = 2×3 str...

2일 전 | 0

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Generating a heat map of adjacency matrix
Presuming you want the displayed values of the cells to still be their totals, then s = [1 1 1 2 2 3]; t = [2 3 4 5 6 7]; G =...

3일 전 | 0

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Check for missing argument or incorrect argument data type in call to function 'predict'.
I've never used fitrlinear (didn't know it existed, in fact), but it appears that it returns a composite object and that the req...

3일 전 | 1

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How to change values to 3 decimal points and 7 significant figures?
You can't set an arbitrary format string or precision for command window output; only the few selectable choices given by the fo...

3일 전 | 2

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Search for minimal value in column of table when value in other columns are the same
function [f,ix]=fastest(d,r) % return minimum of input time of travel array, d and % corresponding row index of minimum from ...

3일 전 | 0

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histogram style graph with several different data types with each type coloured differently
Actually, it's not too bad to just make up something...not sure where and why you ran into difficulties without seeing what sort...

4일 전 | 0

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how to read a data from text file
zein=readlines('yourfilename.txt'); xyz=str2double(split(extractBetween(zein(3:end-1),'(',')')," "));

4일 전 | 0

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How can I order a matrix in a specific order?
I've no klew what amplapi is, but if you have a text file like the first, reading it into MATLAB will not reorder it. >> which ...

4일 전 | 0

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X must have length equal to the number of rows in Y, but I'm pretty sure they're the same size
nutrients14 is a table in which case those will be column vectors instead of row vectors and stackedplot needs one X and an arra...

6일 전 | 1

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Combine rows and average contents in table
% smoosh edges of disjoint regions to midpoints between... edges=[0.085 0.125; 0.17 0.23; 0.27 0.45; 0.6 0.9]; e=edges.'; e=e(...

6일 전 | 0

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Extracting single lines of text from a .txt file
In general, unless the file(s) are very large, it's more efficient to just read the whole file and then locate the wanted data i...

6일 전 | 0

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compare two columns and their corresponding values from two different excel files
>> data1=readtable('data.xlsx');data2=readtable('Data2.xlsx'); >> setdiff(data1,data2,'rows') ans = 3×2 table count...

7일 전 | 0

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Why does dir command find files not following pattern in Windows?
That's the behavior of the OS dir command under Windows; '*' matches anything including nothing. Unfortunately, in typical MS s...

7일 전 | 0

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Graph plot with given range
You didn't allocate for each element of the output arrays but computed each point one-at-a-time by using an unneeded for...end l...

7일 전 | 0

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combine 2 plot with different length
plot(x1,y1) hold on plot(x2,y2) or plot(x1,y1,x2,y2)

9일 전 | 0

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Split a vector where NaN appears
>> x=randn(10,1);x([4 7])=nan x = 0.5080 0.2820 0.0335 NaN 1.1275 0.3502 NaN 0.02...

9일 전 | 0

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How to make a script so I can choose a file from folders
While it's only documented by a very terse example, the builtin dir function will recurse directories if the search pattern cont...

10일 전 | 0

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Get a subset of columns from a timeseries object as a timeseries
plot(u.Time,u.Data(:,1)) "But isn't there a simpler way similar to how I would plot a timeseries with only one variable?" Once...

10일 전 | 1

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how to split a table to multiple table?
>> CT=reshape(CT,4,4,[]) CT(:,:,1) = 196 296 305 305 317 291 234 196 246 229 313 313 333 17...

11일 전 | 1

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extraction of numeric data with presence of text data
fid=fopen('abc.txt','r'); abc=textscan(fid,'%s',inf,'Delimiter','\n','HeaderLines',2,'commentstyle','1','texttype','string'); ...

11일 전 | 0

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How to read .txt separate by - and in dms format
>> fmt='%f-%f-%fN %f-%f-%fW %f'; >> data=cell2mat(textscan(fid,fmt,'CollectOutput',1,'HeaderLines',1)) data = 46.00 ...

11일 전 | 1

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using findstr to find what you are looking for
Looks like hard way to go at it to me...I'd just download the data to local file and snarf it up ... eopdata = urlread('https:/...

12일 전 | 0

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I get date info when plot a Datetime in x-axis.
Another case of TMW being too aggressive in hiding things from the end user inside graphics objects -- the year/date 'SecondaryL...

12일 전 | 0

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Extract a Column from a large csv file
data=readmatrix('forward_turn_and_back.csv','range','AD:AD','NumHeaderLines',N); You'll have to set N for the number of headerl...

14일 전 | 0

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how to increase the decimal place and it must be side to side as below
fmt=['%0.4f%+0.4fi\t%0.4f%+0.4fi\n']; >> for i=1:size(approx,2) fprintf(fmt,real(approx(i)),imag(approx(i)),real(exact(...

15일 전 | 0

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Compare two list of strings line by line for a match and summarize results.
Don't need to explicitly loop -- MATLAB has functions builtin to do that for you. readin=lower(string(textread('readin.csv','%s...

15일 전 | 0

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Compare average monthly stock return data
See the optional 'nanflag' argument to mean-- M = mean(___,nanflag) specifies whether to include or omit NaN values from the ca...

15일 전 | 0

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