Question

how to define a variable with dates

I want to define a variable "NYC" that will take a value for each day of 1/1/2021 to 3/31/2021. How can one do this?

2 months ago | 1 answer | 0

Question

Does not properly read csv file

I try to read the attached csv file using readtable. But the data does not seem to be read. What can be done?

2 months ago | 2 answers | 0

Question

How to draw a graph from this table

I have a spreadsheet of the format 2021 2020 2019 male 50 45 40 female 50 55 60 I now want to draw a g...

3 months ago | 1 answer | 0

Question

How to Run Matlab in Jupyter in VS Code

https://code.visualstudio.com/docs/python/jupyter-support shows how to run Jupyter notebook in VScode. So it should be able to ...

5 months ago | 1 answer | 0

Question

format of an output of a function

Suppose A is 100*1 categorical and B is 100*1 categorical . As I run ismember(A,B), output is like ans = 100*1 logical array ...

5 months ago | 1 answer | 0

Question

comparing categorical arrays in terms of content

I have two categorical arrays A and B. I want to idenitfy common elements of A and B elements that are in one of them but not...

5 months ago | 1 answer | 0

Question

read csv file: variable name consists of multiple words: resulting table variable name

I readtable a csv file of the format date new york --------------------- 1/1/2021 15 1/2/2021 20 Then the resulting tabl...

5 months ago | 1 answer | 0

Question

Print first few lines of output

Suppose I do summary(T) Then it will print out statistics of all the variables in the table, which is good. But at the same ti...

5 months ago | 1 answer | 0

Question

Reformatting columns and rows of a table

Suppose I have a table date NY Chicago SF --------------------------- 1/1/2020 10 15 20 1/2/2020 15 20 10 I want to refo...

5 months ago | 1 answer | 0

Question

Run regressions and output the result as a report using "Report Generator"

I run regressions such as fitlm(T.population, T.sales) I want to output a report that explains these regression equations and...

5 months ago | 1 answer | 0

Question

Define a collection of variables

Suppose I have a table date visitor city dummy_for_January dummy_for_February dummy_for_March --------------------------------...

5 months ago | 2 answers | 0

Question

Long output in Livescript

For example, when I run fitlm with a large number of independent variables, outputs are displayed in its own window and one need...

6 months ago | 1 answer | 0

Question

suggestion: please put an option to display variable data type in head function

head function allows the display the first rows of table that is very convenient. https://www.mathworks.com/help/matlab/ref/ta...

6 months ago | 1 answer | 0

Question

'summary' function for a cell

summary function provides a summary of a content of a table https://www.mathworks.com/help/matlab/ref/table.summary.html Then ...

6 months ago | 1 answer | 0

Question

Matlab, automatically delete the index variable after the execution of a loop, Part 2

https://stackoverflow.com/questions/9850628/matlab-automatically-delete-the-index-variable-after-the-execution-of-a-loop suppos...

6 months ago | 1 answer | 0

Question

a simpler way to add a string variable to a table

I have a table T Date City Visitors ---------------------- 1/1/2020 New York 10 1/2/2020 New York 20 I want to add a variab...

6 months ago | 1 answer | 0

Question

refreshdata, clf, "clear all output"

What are the relationship of refreshdata https://www.mathworks.com/help/matlab/ref/refreshdata.html clf https://www.mathworks...

6 months ago | 1 answer | 0

Question

fitlm okay but warnings for anova

I run tbl=fitlm(x,y) and it does not have any error message. But when I do anova(tbl) I get an error message warning: Mat...

6 months ago | 1 answer | 0

Question

polyfit with multiple dependent variables

I think https://www.mathworks.com/help/matlab/ref/polyfit.html can handle multiple dependent variables. But when I tried Fit...

6 months ago | 2 answers | 0

Question

Setting plot limits with dates, Part 2

https://www.mathworks.com/matlabcentral/answers/84008-setting-plot-limits-with-dates I belive I have set the xlim to start from...

6 months ago | 1 answer | 0

Question

What would be a good proxy for time?

In the previous post https://www.mathworks.com/matlabcentral/answers/696080-correlation-of-two-variables-over-time-can-this-ha...

6 months ago | 1 answer | 1

Question

Correlation of two variables over time: can this happen?

I have a variable x1 and x2 between January 1 till December 31. When I calculate the correlation between Janaury and June it is ...

6 months ago | 2 answers | 1

Question

extract a datanum value of timetable

I have a timetable. I want to get the value of datetime of the 10th row, etc. How?

6 months ago | 1 answer | 0

Question

extract a cell depending on the value of a variable

Suppose I have a 2*1 cell T. T{1} is of the form date city visitors -------------------- January 1 2020 NY 100 January 2 202...

6 months ago | 0 answers | 0

Question

extract a number from 1*1 cell

I have tbl2 = 1*1 cell array {[1.29]} Name Size Bytes Class Attributes tbl2 1x1 ...

6 months ago | 2 answers | 0

Question

How to round a result to two decimal places, Part 2

https://www.mathworks.com/matlabcentral/answers/308927-how-to-round-a-result-to-two-decimal-places shows how to round the resul...

6 months ago | 1 answer | 0

Question

getting a specific column from a table, Part 2

https://www.mathworks.com/matlabcentral/answers/248838-getting-a-specific-column-from-a-table tells T{:,1} as a way to speci...

6 months ago | 1 answer | 0

Question

fitlm when there are many independent variables

https://www.mathworks.com/help/stats/fitlm.html shows, when one has a small number of independent variables, it is possible to ...

6 months ago | 1 answer | 0

Question

Can the script detect the version of MATLAB on which the script run?

I write a script that depends on a new feature of R2020b. But other people may not have R2020b. Is it possible to write such as ...

6 months ago | 2 answers | 0

Question

where can I find a path of a function that matlab accessed?

I wrote a function 'test.m'. I called the function from Livescript test(x,y) How can one find the directory of test.m?

6 months ago | 1 answer | 0