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**Feeds**

Split arrays in table into separate rows

I think you can do what you want in several steps. % Convert your cell arrays in voxel_coord, R2s, and MT into arrays using cel...

2 years ago | 1

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Select a cell table

If you want the value in RESP0234_SOZ_TABLE{2,2}, use eval to evaluate that expression: for i=1:length(numbers); j=numbers...

2 years ago | 0

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Timetable_Averaging values from each month

Use groupsummary with 'monthofyear' binning T = timetable(datetime(2000,1:(12*21),1)', rand(12*21,1), 'VariableNames', {'USDM_i...

2 years ago | 0

Efficient way to standardize large amounts of text

You may be able to use patterns. For example, suppose the standard format is letters followed by underscore followed by numbers,...

2 years ago | 0

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How to solve the Operator '-' is not supported for operands of type 'table'?

z should be a matrix instead of a table. z is defined using parentheses indexing in your code: z = LSinclination(:,5); This re...

3 years ago | 0

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splitting column in table without creating new variables

Unstack may be the function you need to convert your table into a column for each trial, and then use braces indexing to convert...

3 years ago | 0

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Merge columns with different cell input

Can you convert your empty char '' into empty array []? Tables can be concatenated with empty array but not empty char: t = tab...

3 years ago | 0

plot specific time points of everyday in an automated data

See this example of checking the hour component of a datetime, and then using logical indexing to extract a time range: dt = da...

3 years ago | 0

Plotting acceleration vs time on Matlab from accelerometer data that doesn't have a time column

You can create a timetable, and just supply the start time and frequency. Timetable will compute the timestamps for your data. F...

3 years ago | 0

Accessing data in matrix entries of tables

You can use multiple sets of curly braces {} to index into cells, and then use parentheses to index into the resulting arrays, l...

3 years ago | 1

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Categorize data in if else statement

You can discretize the BMI values into categories and then count them, like this: >> c = discretize(BMI, [0 18.5 24.9 29.9 34.9...

3 years ago | 1

| accepted

Find maximum for each Image in table

You can use groupsummary to find the maximum value of each group: T1 = groupsummary(T, 'MaxPosition', 'max', 'Intensity');

3 years ago | 2

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creating table of finely spaced xy points that represent a box corner

meshgrid may be the function you are looking for. For example, >> [x,y] = meshgrid(1:5,1:5) x = 1 2 3 4 ...

3 years ago | 0

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Rapid access and data manage of a table with cell array in the columns

You can use cellfun. For example, to compute the maximum of each column of the H3raw cell column for each row, do this: cellfun...

3 years ago | 0

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Plotting Timetable in Matlab

The line: Time=TR({'05-05-2020','05-06-2020 00:00:00'},:); only extracts two rows from TR. So Time only has two rows. Then w...

3 years ago | 0

Grouping based upon differences in time, with some small scatter

One way to do this is to use isbetween in a for loop, and then unique(, 'rows') to find the groups: t = datetime({'27-Aug-2020 ...

3 years ago | 0

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How can I track time periods under certain criteria?

You can put your data in a timetable and then use movsum like this: tt = readtimetable('Daily_Data_Thessaloniki.xlsx'); tt.thr...

3 years ago | 0

| accepted

PLOT ACTION IN TIME LAPS

Your data is best represented as a timetable in MATLAB. You can then use stackedplot to generate the visualization. haa = readt...

3 years ago | 1

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Spatial correlations with a timeseries

corr works on columns in 2D matrices. Your local temperature is a row, so you need to tranpose it: local_temp = local_temp...

3 years ago | 0

Combine timetables vertically different variables

You can use outerjoin with MergeKeys option set to true. You need to specify your common variable names (in addition to 'Time') ...

4 years ago | 1

| accepted

How to stackedplot with text data

What do you expect to see with your text data in the plot? stackedplot ignores text data, but plots categorical data. If your ...

4 years ago | 0

What unit does the frequency have (MATLAB Color Histogram)?

The Y axis is number of pixels. The image in the example is 384x512, so it has 196608 pixels.

4 years ago | 0

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Help with creating histogram

If you convert to categorical, you can sort the counts by descending order: a = randi(10,10,10); histogram(categorical(a), 'Di...

5 years ago | 0

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Is there a way to plot multiple graphs in one "subplot" of a stackedplot figure?

stackedplot can plot multiple lines in the same axes. One way is to have a non-column matrix as one of your table variables: x ...

5 years ago | 6

| accepted

I can't plot two lists as histograms as different colors on the same plot. Hist wants 'Numeric Input'

What does class(list1) return? If it returns anything other than a builtin numeric class, that would be the reason for your erro...

6 years ago | 0

arrange multiple 2D histograms in 3D

You can use the hist function to plot one histogram, then grab its vertices from the resulting patch object. Pass these vertices...

8 years ago | 1

how to extract subbands from pyramidal directional filter bank/contourlet decomposition of an image?

You need the contourlet toolbox: <http://www.mathworks.com/matlabcentral/fileexchange/8837-contourlet-toolbox>

8 years ago | 0

Two bar graphs - two data sets - different bin width

histogram/histcounts have builtin support for Freedman-Diaconis rule: histogram(x, 'BinMethod', 'fd') or [n, binedges] ...

8 years ago | 0

When brushing 3-d scatter, why does the marker not change?

Are you using R2014b? There is a bug in that version. Good news is it is fixed in 15a, so if you update, brushing on scatter3 wi...

8 years ago | 1

| accepted