Answered
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)); % ...
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)); % ...
2 månader ago | 0
| accepted
Answered
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...
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...
3 månader ago | 0
| accepted
Submitted
Numeric to Ordinal-String
Convert numeric values to a string array of integers with ordinal suffixes. Fully vectorized!
3 månader ago | 5 downloads |
Answered
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,...
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,...
3 månader ago | 0
Answered
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...
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...
3 månader ago | 0
| accepted
Answered
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...
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...
3 månader ago | 3
| accepted
Answered
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 = ...
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 = ...
3 månader ago | 0
| accepted
Answered
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...
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...
3 månader ago | 1
| accepted
Answered
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,:)
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,:)
3 månader ago | 0
Answered
Files read with "dir" have additional (nondesirable) characters
S = dir('C:\Users\XXX\Desktop\...\*.csv'); S(startsWith({S.name},'.')) = [];
Files read with "dir" have additional (nondesirable) characters
S = dir('C:\Users\XXX\Desktop\...\*.csv'); S(startsWith({S.name},'.')) = [];
3 månader ago | 1
| accepted
Answered
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...
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...
3 månader ago | 0
| accepted
Answered
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...
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...
3 månader ago | 0
| accepted
Answered
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'...
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'...
3 månader ago | 0
Answered
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,...
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,...
3 månader ago | 0
Answered
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');...
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');...
3 månader ago | 0
| accepted
Answered
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, -...
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, -...
3 månader ago | 0
Answered
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...
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...
3 månader ago | 0
| accepted
Answered
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...
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...
3 månader ago | 1
| accepted
Answered
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...
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...
3 månader ago | 1
Submitted
Convert between RGB and Color Names
RGB to color name. Color name to RGB. Supports many palettes: CSS, dvips, HTML, MATLAB, RAL, SVG, X11, xcolor, xkcd,...
3 månader ago | 23 downloads |
Answered
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...
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...
3 månader ago | 2
Answered
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
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
3 månader ago | 0
Answered
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...
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...
3 månader ago | 0
Answered
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...
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...
3 månader ago | 0
| accepted
Submitted
Round to Electronic Component Values
Round numeric array values to IEC 60063 resistor/capacitor values (E-Series of preferred numbers).
3 månader ago | 6 downloads |
Answered
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()...
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()...
3 månader ago | 0
| accepted
Answered
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...
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...
3 månader ago | 2
| accepted
Submitted
ColorBrewer: Attractive and Distinctive Colormaps
The complete palette of ColorBrewer 2.0 colormaps. Simple selection by scheme name and map length.
3 månader ago | 231 downloads |
Submitted
CubeHelix Colormap Generator: Beautiful and Versatile!
A versatile implementation of the CubeHelix algorithm to create colormaps (suitable for grayscale conversion)
3 månader ago | 18 downloads |
Answered
Plotting perpendicular lines but they are not perpendicular.
"But as you can see these do not show up as perpendicular." They are perpendicular: check the axes scales! If you want the X a...
Plotting perpendicular lines but they are not perpendicular.
"But as you can see these do not show up as perpendicular." They are perpendicular: check the axes scales! If you want the X a...
3 månader ago | 1
| accepted