# alexandra ligeti

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Question

Plotting error bars on curve

Hello, I have code that compares two devices and I am plotting the error on y-axis throughout a gait cycle % (on the x axis)...

25 days ago | 1 answer | 0

### 1

answerQuestion

Plot change in velocity

Hi again, I am now wanting to slightly alter my Bland-Altman curve, to be able to determine whether velocity causes larger er...

3 months ago | 1 answer | 0

### 1

answerQuestion

Displaying error bars on scatter plot (Bland-Altman plot)

Hello all, I have a scatter plot (Bland-Altman plot) showing the agreement between two sensors measuring knee angle for 1 gait ...

3 months ago | 1 answer | 0

### 1

answerQuestion

How to write theta - theta bar as a axis label

Good afternoon, I am trying to plot a Bland Altman plot, but I would like to have the x-axis labelled as theta- theta bar how...

4 months ago | 1 answer | 0

### 1

answerQuestion

How to write a double variable to a structure array

Good morning. I have two ''sensors'' that collected gait data, the one method is Vicon and the other method is called MS. I h...

7 months ago | 1 answer | 0

### 1

answerQuestion

Extracting portions of data using indices

Hello, I have a 1x1 cell titled trim_data as attached below, which contains a variety of gait data. I then also have a list o...

8 months ago | 1 answer | 0

### 1

answerQuestion

How to incorporate a push button into GUI so that data indexes from a slider are saved to an array when the push button is clicked

Hi, I have code that plots walking kinematic data from a person that is on a treadmil. I am trying to determine when heel st...

8 months ago | 1 answer | 0

### 1

answerQuestion

Write a cell array which contains multiple cell arrays into an excel spreadsheet

Hi there, I have a 1x3 cell array that has my normalised data, however within this 1x3 cell array holds 3 different cell arrays...

9 months ago | 1 answer | 0

### 1

answerQuestion

Write cell array into an excel file with multiple sheets

Hi all, I have looked at previous examples but struggling to get this working. I have a cell array called gc and it is 1x10 l...

10 months ago | 1 answer | 0

### 1

answerQuestion

Create a new excel file from trimmed data

Hi there, I have data of different activities. Each activity is repeted three times. Previously in the code the activities an...

2 years ago | 1 answer | 0

### 1

answerQuestion

How to plot a specific variable if condition is met

Hi, I have code that is comparing two sensors (Ms and V). V measures both left and right, however Ms measures only the side t...

2 years ago | 1 answer | 0

### 1

answerQuestion

Renaming multiple excel sheets

Hi there, I am really struggling to get the sheet names in my code to be renamed. I have different folders that hold different...

2 years ago | 1 answer | 0

### 1

answerQuestion

Navigating and extracting data from different folders

Hello, I have a path of data which I would like to access various folders and various files within these folders. All the folde...

2 years ago | 1 answer | 0

### 1

answerQuestion

Accessing data within a structure

Hi, I am using biomechanical data from Vicon. I have used the toolbox btk to get the various parameteres recorded by vicon st...

2 years ago | 2 answers | 0

### 2

answersQuestion

Finding angle of swinging Double pendulum

Hi there, I am struggling to calculate the angle between the hinge joint of a double pendulum (the flexion angle). I recorded t...

2 years ago | 0 answers | 0

### 0

answersQuestion

How to compare peaks of two sinusoidal plots

Hi there, I would like to compare the peaks of two sinusoidal plots, the one being motionsense (MS) and the other from Vicon. T...

3 years ago | 1 answer | 0

### 1

answerQuestion

Creating a vector made of three different unit vectors

Good afternoon, I have three different unit vectors (I, J, K) composed of [Ix, Iy, Iz], [Jx, Jy, Jz], and lastly [Kx, Ky, Kz]. ...

3 years ago | 1 answer | 0

### 1

answerQuestion

Sampling and resampling data of different lengths

Hi, I have two sets of data, one from a motion analysis software (Vicon) which is captured at 100Hz and another set of data fro...

3 years ago | 1 answer | 0

### 1

answerQuestion

How to make the length/dimension of 6 different 3D vectors the same?

I have 6 different vectors, each containing their own independant x, y, z coordinates. I would like to calculate the cross produ...

3 years ago | 1 answer | 0

### 1

answerQuestion

Making two 3D vectors the same length

Hi, I have two vectors, vector_static and vector_dynamic which both contain x, y ,z coordinates, however vector static is 421...

3 years ago | 1 answer | 0

### 1

answerQuestion

List of xyz coordinates for two vectors that continuously change through time, how to find angle between the two vectors as time passes and their coordinates change?

Hi, I have an excel file with a list of coordinates. I am only using columns [3:8]. These columns represent two points and thei...

3 years ago | 1 answer | 0