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Wendy Cameron


Last seen: 3 years ago |  Active since 2018

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Extracting data from excel spreadsheet based on shared dates
I have two spreadsheets. One has the dates for a given plant phenological event. The other has the appropriate weather data for ...

3 years ago | 1 answer | 0

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answer

Question


Convert single data to double
I have downloaded an nc weather data file and from this have downloaded the variables I need. The temperature variable has come...

3 years ago | 1 answer | 0

1

answer

Answered
Recovering editor window scripts
Thanks for the response, but I did manage to find them just by searching for "matlab" in explorer and when I double clicked on t...

4 years ago | 0

Question


Recovering editor window scripts
I had a problem with my 2017b licence and was told to uninstall and reinstall the latest version. When I reinstalled the 2020a ...

4 years ago | 2 answers | 0

2

answers

Question


Setting targets for ANN
The machine learning part of Matlab is quite new to me and I have looked at the examples given which seem to make sense. Howe...

5 years ago | 0 answers | 0

0

answers

Question


Plotting weather graphs so subsequent years are superimposed rather than sequential
I have many years of weather data to plot. At present the data is all in one long column. But I don't want the graph to be one...

5 years ago | 1 answer | 0

1

answer

Question


Summing parts of a column
I have 18 years of daily weather temperatures. I want to sum the temperatures for a specific part of the each year. How could I...

5 years ago | 1 answer | 0

1

answer

Question


Averaging and summing parts of a column based on date
Greetings Matlab community I have some very large data sets and I am wanting to sum and average parts of a table column based o...

5 years ago | 2 answers | 0

2

answers

Question


Change the format of an excel spreadsheet using matlab
I have numerous spreadsheets in the format of tab 2 attached, and I want to convert them to the format of the one in tab 1. Is t...

5 years ago | 2 answers | 0

2

answers

Question


How to combine table vertically
I have two large tables I want to combine. They both have exactly the same column headings but different row numbers (>300) and...

5 years ago | 2 answers | 1

2

answers

Question


Predict y values from x values
If x=[0 1 2 3 4 5]; and y=[0 20 60 68 77 110]; To get a linear equation I can use coefficients=polyfit(x,y,1) which gives me ...

5 years ago | 2 answers | 0

2

answers

Question


Machine learning to predict yield
I am wanting to use a combination of numeric and categorical data to predict numeric data using matlab/machine learning. I'm wo...

5 years ago | 1 answer | 0

1

answer

Question


Create a subtable from a larger table
Hi Everyone, I'm hoping this specific question might be useful too in other more general situations. I have some sample data...

6 years ago | 2 answers | 0

2

answers

Question


Segmented regression or broken stick regression
An example of my data is as follows: xdata=[1150 1200 1263.3 1333.3 1429 1497.3 1567.8 1608.3 1643.5 1668.8]; ydata=[6.2 7.2 8...

6 years ago | 1 answer | 0

1

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Question


Fitting data with broekn stick regression
Hi. I have some grape ripening data (sugar versus heat degrees) and want to try and fit a broken stick regression to it, and ...

6 years ago | 3 answers | 0

3

answers

Question


Help with if statements
If I have a number in one table column, how do I add a new column where the numbers in the second column depend on on the first ...

6 years ago | 1 answer | 0

1

answer

Question


How to get cumulative sum in yearly buckets
I have several years of data and temperature in one table. I want to calculate a cumulative temperature sum which I've done sim...

6 years ago | 4 answers | 0

4

answers

Answered
Merging two categorical columns using a rule
Yes that worked with the table I sent you as you describe. I get a 42 x 1 categorical - thank you very much. I'm now just trying...

6 years ago | 0

Answered
Merging two categorical columns using a rule
Hi, I have attached some sample data. Basically I have columns A and B but want to get column C. I couldn't quite get the me...

6 years ago | 0

Question


Merging two categorical columns using a rule
Hi, I am wanting to merge/add 2 categorical columns but need to use a rule. For example a= [Flowering not not not], b=[no...

6 years ago | 4 answers | 0

4

answers

Question


Matching dates in two different tables and inserting value in separate column in second table when dates match.
I want to match a date from one table column, with a date from a second table, and when the dates match, insert a value in a sep...

6 years ago | 1 answer | 0

1

answer

Question


Repeating table calculations using pairs of columns
I have a table of data and need to do repeat calculations using two columns at a time. One of the columns is always the same (D...

6 years ago | 1 answer | 0

1

answer