plot textdata on the x axis and number data on the y axis

Question

Clifford Shelton 2012-4-25

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I am a ultra beginner at Matlab..so I'm constantly frustrated with problems. I have a time series data set that I imported from a .csv spreadsheet. When importing the data MATLAB then proceeded to split the data between 'textdata' and 'data'

The data set is the game history of a baseball team. Therefore the 'textdata' that has been separated is the text infromation consisting of the date of the game (4/12/2012), name of opponent (NYM) etc. The other non text data is all numbers.

How do i plot the textdata on the x axis (date of game) and the score on the y axis??? I think I'm supposed to convert the text data into an array or something...but I have NO clue how!

Please be very detailed in any answers you are so kind to give. I am an ULTRA beginner. Thanks!!

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Answer 1

Thomas 2012-4-25

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在 MATLAB Online 中打开

Convert your date array into a number using datenum

doc datenum

and then plot it using the plot command, and use 'datetick' to get it back on the x-axis..

or if you donot want to convert to datenum just plot the scores and use the Xtick labels to show what date and team the value corresponds to..

It would easier to help if we can see what you have done so far and where you are getting stuck..

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Answer 2

Walter Roberson 2012-4-25

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在 MATLAB Online 中打开

At the command line give the command

doc axes_props

and look down near the bottom of the help information to read about XTickLabel

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Answer 3

Clifford Shelton 2012-4-28

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Thanks for all the help! I'm still having trouble with it..but I'll get there sure 'nuff!

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Answer 4

Fredrik Behrendtz 2012-6-5

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Good thread, I will continue on this with one further question.

DATENUM converts the date string to a double holding time info, DATETICK replace this number into desired time format for the X-axis.

Well, is there any way to also get date and time in the "hoover box" which apperas when you choose a point with "data cursor". The hoover box includes the datenum number which is hard to read. /Thanks