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Sehoon Chang


Last seen: 2년 초과 전 |  2019년부터 활동

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How to compare the contents of two tables?
I have two tables to compare. One is from this month (Feb.) and the other from the previous month (Jan.) tab_jan = Countr...

2년 초과 전 | 답변 수: 1 | 0

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merge two arrays into one
i am trying to merge two arrays into one array. The goal is to create a load cycle graph of a storage system. One array is cal...

3년 초과 전 | 답변 수: 2 | 0

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define time period for each year
Hi all, I wish to re-define my time period. The initial time period is as following: The time period ranges from 01-10 (1st...

대략 4년 전 | 답변 수: 1 | 0

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x-axis error when adjusting axis label
Hello all, i am having trouble with x-axis adjustment. Below is the original code before implementing any change to the x-axi...

대략 4년 전 | 답변 수: 1 | 0

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x-axis label adjustment (negative value)
dear advisors, i am having difficulty finding out how to adjust the x-axis label. As you may see in the figure below, my x-axi...

대략 4년 전 | 답변 수: 0 | 0

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create a variable based on timetable's date period
Hello dear advisors. i wish to create a new variable (HP) for my timetable (TT) which datetime covers for multiple years. F...

대략 4년 전 | 답변 수: 2 | 0

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timetable retime error - input timetable must contain unique row times
Hi all, I'm having difficulties undertanding the error code that i am getting. using the code as stated below, i am trying ...

대략 4년 전 | 답변 수: 1 | 0

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change timetable variable (working day to holiday)
Hi all, i have a timetable that specifies whether a date listed is working day or not-working day, by assigning 1 for workin...

대략 4년 전 | 답변 수: 1 | 0

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assign categorical value for weekday variables
Dear advisors, how may i assign categorical value for weekday variables? I have made a variable 'weekday' from the datetime...

대략 4년 전 | 답변 수: 1 | 0

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merging multiple timetable using for loop
Hi all, i am trying to merge multiple timetables using the code 'outerjoin' and 'for loop'. Amongst many timetables that are...

대략 4년 전 | 답변 수: 0 | 0

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checking the existence of timetable and merge
Hi within a folder i have diverse excel data type, which are imported and then converted to timetable within MATLAB. (eg. time...

대략 4년 전 | 답변 수: 1 | 0

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remove rows with empty variables within timetable
Hi all I have a table with numerous variables that are empty/not recorded at certain point of time (mostly front and rear row, ...

대략 4년 전 | 답변 수: 1 | 0

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extracting timetable variables as array
Hi i have a timetable imported from excel with undefined number or variables (number of usable variables change depending on si...

대략 4년 전 | 답변 수: 1 | 1

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timetable time and value adjustment
Hi all, How can i ... 1) round up datetime of timetable to nearest minute (yyyy-mm-dd hh:mm) and then 2) make adjustment to d...

대략 4년 전 | 답변 수: 1 | 0

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Change variable name in a loop
Hi, I have multiple excel table data, that are imported to MATLAB in a loop function. csvFiles = dir('*.csv'); numfiles_csv ...

대략 4년 전 | 답변 수: 1 | 0

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import multiple excel file
i am trying to import multiple excel file containing table value to matlab using the following source: https://de.mathworks.com...

대략 4년 전 | 답변 수: 1 | 0

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how to merge multiple timetable
dear advisers, i have multiple timetables with different timestamps (yyyy-mm-dd hh:mm), but within a same time period. I wish...

4년 초과 전 | 답변 수: 2 | 0

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how to import multiple excel files within a folder once
dear adviser, how may i import multiple excel files within a folder using the code "readtable (or similar)"? each excel files...

4년 초과 전 | 답변 수: 0 | 0

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what is the best possible way to find the missing values using interpolation
Hi all, i have an array that is measured in a hour interval. ex) a_1_hour = [ 1 5 9 13 17 21 ] but i wish to find out how...

4년 초과 전 | 답변 수: 1 | 0

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how to set the negative values on a diagram to zero
hello all, could you kindly advise me how to set a limit on a diagram. As you may see on the diagram that i have plotted, the...

4년 초과 전 | 답변 수: 1 | 0

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export codes written in editor into word
Hi all, is there a way to export the codes, written in editors, into microsoft word? It should be exported just like it is ...

4년 초과 전 | 답변 수: 1 | 0

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find arrays that are consecutively equal
suppose i have a vector W(idx) = [ ........ 1 4 3 6 7 4 2 6 0 0 0 0 20 6 15 2 3 0 0 0 0 31...... ] I want to find arrays that...

4년 초과 전 | 답변 수: 1 | 0

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how to re-insert elements into a vector
I have outliers at the X-axis position 5785 and 7934. outliers = 5785; 7934 In order to replace the outlying value, outliers...

4년 초과 전 | 답변 수: 1 | 0

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calculating a interpolation for a false data and inserting the calculated value back at its original place
Hi all, I am trying to insert my calculated interpolation value back to its original position. I have a data, in which there a...

4년 초과 전 | 답변 수: 1 | 0

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narrowing down data sample
Hi all, I have set restrictions to sample the outlier data and wish to narrow down outliers samples. Three restrictions that ...

4년 초과 전 | 답변 수: 0 | 0

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how to calculate mean of erased outlier and insert them in their place
dear all, using the code "rmoutlier", i was able to detect outliers as i intended. But instead of deleting the outlier and th...

4년 초과 전 | 답변 수: 0 | 0

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calculating the mean of specific array using previous & next array
Dear all, I am trying to find a way to calculate the mean of specific array in a vector. Within the vector "W", there are "...

4년 초과 전 | 답변 수: 1 | 0

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appropriate measurement for handling error outliers
Dear all, As you may see on the diagram, i have a data with outliers. Accodring to the licterature that i have gone through...

4년 초과 전 | 답변 수: 1 | 0

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finding and removing outlier
Dear all, I am trying to define, identify and remove outlier from my datset. As you may see on the plot diagram, some data ar...

4년 초과 전 | 답변 수: 1 | 0

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repeat an element in a vector
Hi all, I have one vector and i wish to repeat the first element of the vector once at the very beginning. For example: n...

4년 초과 전 | 답변 수: 1 | 0

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