Means, Standard Deviation and Broken line plot

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Hugo Laflamme
Hugo Laflamme 2020-12-9
评论： dpb 2020-12-10
I wish to calculate the mean/standard deviation of a single column in the excel file that will be created at the end of my task, as well as create a broken line plot (instead of the stairs you can see in the code). I'm currently using PsyToolBox.
Here is the little i've figured out so far:
T = readtable('Test.xlsx')
summary(T);
Avg = mean(T,1);
figure
stairs(T.RT)
grid
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Hugo Laflamme
Hugo Laflamme 2020-12-9
Sweet! Thank you! Do you know how i could do the "summary(T)" part, but with the mean and SD instead of just min/max/median?
dpb
dpb 2020-12-10
grpstats is probably most convenient way to return a plethora of statistics -- but it requires a grouping variable so to do the whold dataset will need to introduce a constant to serve the purpose
stats=grpstats(T,ones(height(T),1));
If there are nonnumeric variables in the table, then will have to specify whch are numeric with the optional 'DataVars' named parameter. You select the statistics desired with a cell array to specify multiple types of summary statistics.
See the doc for details, examples of use. Requires the Statistics Toolbox

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