Question

help with reading txt file into matlab
hi folks, I have a very large txt file that I want to read into Matlab. When I use the "import data" option it reads the file j...

3 years ago | 1 answer | 0

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answer

Question

Help with extracting data from excel
Hi folks, I'm trying to extract data from excel files in a specific way. Essentially, I want to loop through each file, get t...

3 years ago | 1 answer | 0

1

answer

Question

Help with syntax for a self-made function
Hi folks, I have the following function defined in Matlab but am getting an error when running. The error and the code are belo...

3 years ago | 1 answer | 0

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Question

Is there a way to overlay one mask onto another?
I have two masks, as below. I want to make sure that the white area of the second mask is not more than the white in the first. ...

3 years ago | 1 answer | 0

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Question

Is there a way to threshold the background out of the image, to leave only the object?
Hi folks, I have images that look like the following, and I'm trying to threshold out the background. For some images, this is ...

3 years ago | 1 answer | 0

1

answer

Question

App designer - Automatically scale app to the size of the screen it is used on
Hi folks, I have an app where the components are scaled appropriately for my screen, but not for others of a different (smalle...

3 years ago | 1 answer | 0

1

answer

Question

problem with polyval plotting
Hi folks, I am trying to plot a trendline on a scattergraph but I'm not sure why the following is happening! Any help will be a...

3 years ago | 1 answer | 0

1

answer

Question

Plotting data with 5 dimensions
Hi folks, I have a dataset that has data points each with a name and 4 elements. However, of these elements are percentages t...

3 years ago | 1 answer | 0

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Question

VERTCAT error when trying to populate array
Hi folks, I am trying to write some fata into an array, which I will then write to excel. I get the VERTCAT error when trying t...

3 years ago | 1 answer | 0

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Question

Problem writing histogram data to excel - non-English characters and mismatched columns
Hi folks, I am trying to write image histogram data to excel, for various images. However, I am running into a problem where t...

3 years ago | 1 answer | 0

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Question

Is there a way to write data to excel, on different sheets, with each sheet named?
Hi folks, I am trying to write data from matlab into excel, onto multiple sheets within the same excel file. However, I would l...

3 years ago | 2 answers | 0

2

answers

Question

Is there a way to shift the data upwards automatically?
Hi folks, I have a graph as follows. I am looking to shift the valley (red) upwards to be in keeping with the preceeding data. ...

3 years ago | 1 answer | 0

1

answer

Question

Error: Expected input to be a vector
Hi folks, I am calling a self-made function as follows: ir = rotateAround(ig, Cy, Cx, Angle_DEG); But the last variable, Ang...

3 years ago | 1 answer | 0

1

answer

Question

help with image threshold using bioformats
Hi folks, I am reading non-standard image files (not jpeg, png etc) into matlab, then using matlab to threshold these images ba...

3 years ago | 1 answer | 0

1

answer

Question

Trying to solve 3 simultaneous equations, results seem erroneous
Hi folks, I am trying to solve the following set of equations. However, when plotting the results from the coefficients, I get ...

3 years ago | 1 answer | 0

1

answer

Question

Problem/question with regression
Hi folks, I have the following data: Reflectance R G B 7.51 109 54 124 3.17 57 30 63 1.24 30 17 31 I am tryin...

3 years ago | 1 answer | 1

1

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Question

Is there a way to smoothen the function/"bridge the gap"?
Hi folks, I have a graph as follows. I am looking to replace the valley (red) with smoothened data. Is there a way to do this? ...

3 years ago | 1 answer | 0

1

answer

Question

Question regarding strange outputs from histogram plot
Hi folks, I have an image which is mostly black, with specks of purple. When I plot the RGB histogram for the image, I get an s...

3 years ago | 1 answer | 0

1

answer

Question

App designer - uiputfile is saving the file to the wrong path
Hi folks, I have the following code to save a table as an excel file. The problem is, the file is always saved to the default ...

3 years ago | 1 answer | 0

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Question

App Designer - how to get app designer to focus on particular window
Hi folks, I have an app in which, on startup, the user gets to select a folder. The problem is that selection window isn't alwa...

3 years ago | 1 answer | 0

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Question

App designer - how to use numpad instead of number keys?
Hi folks, I have the following code, but was wondring if it can be adjusted to use the numpad inputs as well as the number keys...

3 years ago | 1 answer | 1

1

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Question

App designer - problem with thresholding image
Hi folks, I have the app attached, in which I am encountering two issues. Firstly, when trying to threshold an image and displa...

3 years ago | 1 answer | 0

1

answer

Question

App designer - deleting an unnamed plot
Hi folks, I have the following code for generating 1 or multiple plots on an image. function ROI(app, index1, index2) ho...

3 years ago | 1 answer | 0

1

answer

Question

App designer - using a single variable to return multiple indices
Hi folks, I am trying to pass two indices into a function but am currently failing as I'm sure I'm doing it wrong. I tried to...

3 years ago | 1 answer | 0

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Question

App designer - problem with plotting on axes, on top of an image
Hi folks, I'm trying to place a crosshair plot (using "+" and "o") on top of an image in the app designer. Currently, the crossh...

3 years ago | 1 answer | 0

1

answer

Question

App designer - issue with app freezing after performing the first task
Hi folks, I have an app that's meant to display an image from a folder with plots on them in the shape of a crosshair. Curren...

3 years ago | 2 answers | 0

2

answers

Question

Is there a way to call a part of a function using an index?
I have a function that I call several times: plot(position6(1),position6(2),'r+', 'MarkerSize', 100, 'Color', 'w'); h = images...

3 years ago | 2 answers | 0

2

answers

Question

ROI - limiting the length of a crosshair
Hi there, I am currently displaying a circle and crosshair together on one image. However, is it possible to do this without sh...

3 years ago | 1 answer | 0

1

answer

Question

App designer - resizing axes to image size
Hi folks, I'm displaying a JPEG image in my app and currently, the axes stretch the image when the window is maximised. Is ther...

3 years ago | 1 answer | 0

1

answer

Question

App Designer - help with syntax for referring to an array's indices
Hi folks, I'm trying to initialise the table values on the app designer to zero, then increment the relevant cell based on spec...

3 years ago | 1 answer | 0

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