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Unable to comprehend "time" function output
"Is this output returning the difference between time components of calenderDuration function or only time duration between time...

約2年前 | 1

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Extract Numbers from Mixed string
B = 'single snap detector: 1 S2L:232867 S2R:3151621 S3L:0 S3R:0'; Method one: SSCANF: V = sscanf(B,'%*[^:]:%d') % very efficie...

約2年前 | 1

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How to call a separate function to a new program
"This was my attempt, that went poorly." The basic cause is your continued usage of INPUT everywhere, and hiding the function b...

約2年前 | 0

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Reading ping output using readtable
Here is an easy way to import all numeric data as numeric, and with minimal post-processing for the datestamp: T = readtable("t...

約2年前 | 1

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Where to store images on computer for imread
"Is this because the image is not stored in the right place on my computer.." The only "right place" is the location where you ...

約2年前 | 0

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How to solve " Error using vertcat Dimensions of arrays being concatenated are not consistent " problem ?
You probably think that your square brackets are creating a 4x1 vector. But they aren't, because of the random space characters...

約2年前 | 0

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How to fix broken function code?
Use array division here: s_2 = sum((x.*y)./(delta_y.^2)); % ^^ and here: s_5 = sum(x.^2./(delta_y.^2)); % ...

約2年前 | 0

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Excel to timetable, problem with datetime
"Can anyone see the reason?" The date format you are attempting to use does not match the dates given in the file text: there a...

約2年前 | 0

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How do I print coordinates in an (x, y, z) form?
r = pi; lambda = sqrt(2); phi = exp(1); fprintf('Our rectangular coordinates converted to cylindrical coordinates are (%0.2f,...

約2年前 | 0

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Replacing a field in an structure that is subset within a larger structure
If EVENT is non-scalar them you will get that error. The correct approach is to use a comma-separated list. Lets try it right n...

約2年前 | 0

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How to convert /map uint16 to int16 maintaining the dynamic range so that [0] and [2^16-1] in uint16 beomes [-2^15] and [2^15-1] without going through double
inp = uint16([-Inf,pi,Inf]) Method one: use INT32 for the intermediate values: off = int32(intmin('int16')); out = int16(int3...

約2年前 | 3

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get interpolated values from timetable
INTERP1 accepts DATETIME objects: dt = datetime(1990,1,1,[9;10],0,0); A = [36;28]; B = [12;24]; T = table(dt,A,B) newT = ...

約2年前 | 0

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Better way to combine number with fraction?
Note that you will need to use SPRINTF (or COMPOSE etc) to get the right output when NANOSEC has fewer than the full nine digits...

約2年前 | 1

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Use info in the row based on it being the max value
The second output from MAX is the index, you can use that: [maxDiameter,idx] = max(diameter); row = mat(idx,:)

約2年前 | 0

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Files read with "dir" have additional (nondesirable) characters
S = dir('C:\Users\XXX\Desktop\...\*.csv'); S(startsWith({S.name},'.')) = [];

約2年前 | 1

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Filtering the common rows between two matrices
A = [1,2,3; 4,5,6; 7,8,9] B = [1,2,3,90; 3,1,2,88; 4,5,6,17; 6,5,4,19; 7,8,9,12; 15,18,22,20] [X,Y] = ismember(sort(B(:,1:3),2...

約2年前 | 0

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Handling Undesirable Characters in Numeric Columns When Reading a CSV File
You should NOT make changes to the original data file. fnm = 'p1.csv'; opt = detectImportOptions(fnm, 'FileType','delimitedtex...

約2年前 | 0

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how to open a file from the previous folder
Note that there is absolutely no need to call PWD. Simply use '.' to refer to the current directory: relativePathToC = './../C'...

約2年前 | 0

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Turning string into a variable name for a function to use
The basic problem is that you are LOADing directly into the workspace. You have already painted yourself into a corner. However,...

約2年前 | 0

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Remove duplicate lines in a document
txt = fileread('filteredSatellites.txt') rgx = '([^\n\r]+)\s+(1(\s+\S+){8})\s+(2(\s+\S+){8})'; tkn = regexp(txt,rgx,'tokens');...

約2年前 | 0

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Error: Unsupported use of the '=' operator. To compare values for equality, use '=='. To specify name-value arguments, check that name is a valid identifier with no surroundin
Get rid of the ellipses inside the square brackets of both macroLats and macroLongitudes: macroLats = [lots of numbers, -...

約2年前 | 0

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Is it possible to identify variables in the workspace that contain a string and save the identified variable with another name?
Assuming that you are LOADing some MAT files, then the best approach is to avoid your situation entirely, for example by LOADing...

約2年前 | 0

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padding an array with zeros in between elements
Assuming that A is sorted, here is a simple approach: A = [7,15,21,29]; B = A(1):A(end); B(~ismember(B,A)) = 0 If A is not s...

約2年前 | 1

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Read and Sort Large Amount of Audio .wav Files
As far as I know, the only way to get get the correct order DATASTORE filenames without affecting other properties/attributes is...

約2年前 | 1

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MATLAB null conditional operator
"How it could be done in most simple and elegant way?" I assume that the aim is to not change the logging calls within the proj...

約2年前 | 2

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Error Message "Array indices must be positive integers or logical values" from importing .txt file and get plot
plot(time, Ion,'fileNames', fileNames{fileidx-1}); % ^^ get rid of this

約2年前 | 0

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I have it reading from a struct with signal names and I want to extract it and input it into a 1 column array
The solution depends on the sizes of MESSAGES and SIGNALINFO (you did not tell us either of these). Perhaps this: out = {Messa...

約2年前 | 0

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How to call a MATLAB variable loaded in from a .mat file when you don't know the name of the variable beforehand
"The easiest way would be to use eval():" Use STRUCT2CELL, e.g.: C = struct2cell(load(filename)); D = C{1}; Avoid LOADing di...

約2年前 | 0

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Why Does Format of Data Returned from readtable() Depend on Import Options that are Not VariableTypes?
"Is that expected behavior?" Yes. Or at least, not really very surprising. "Why Does Format of Data Returned from readtable()...

約2年前 | 0

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Find peaks in a matrix containing zeros
A = [1,3,-1,1,5,-1,0;1,6,3,-2,0,0,0;2,3,9,-2,1,11,-1;4,1,-2,8,5,0,0;2,-2,6,-1,0,0,0;-1,13,-2,0,0,0,0] F = @(a)findpeaks(a,'Thre...

約2年前 | 2

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