Invalid data argument error. Plotting date against MTD precipitation data but date format (dd-MM) is not able to be processed. How do I fix?

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Jack Jones
Jack Jones 2022-11-30
回答： Seth Furman 2022-12-7
% DATA BEING USED IS INCLUDED FOR CONTEXT
clearvars
clear all
clc
% open data
dataMN=readtable('MNdatafix.csv');
dataTN=readtable('TNdatafix.csv');
dataLA=readtable('LAdatafix.csv');
% subplot 1
figure(1);
subplot(3,1,1);
plot(dataLA.DATE,dataLA.MTD_PRCP_NORMAL,'r-');
subplot(3,1,2);
plot(dataTN.DATE,dataTN.MTD_PRCP_NORMAL,'r-');
subplot(3,1,3);
plot(dataMN.DATE,dataMN.MTD_PRCP_NORMAL,'r-');

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回答（1 个）

Seth Furman
Seth Furman 2022-12-7
Ran in:
Look's like you want "d-MMM" as your format instead of "dd-MM". See the following page for reference.
https://www.mathworks.com/help/matlab/ref/datetime.html#buhzxmk-1-Format
t = readtable("TNdatafix.csv",VariableNamingRule="preserve",TextType="string")
t = 320×7 table
STATION DATE DLY-PRCP-25PCTL DLY-TAVG-NORMAL DLY-TAVG-STDDEV MTD-PRCP-NORMAL YTD-PRCP-NORMAL _____________ ________ _______________ _______________ _______________ _______________ _______________ "USW00013893" "1-Jan" 0.05 42.7 10.6 0.16 0.16 "USW00013893" "2-Jan" 0.05 42.6 10.6 0.32 0.32 "USW00013893" "3-Jan" 0.05 42.5 10.7 0.48 0.48 "USW00013893" "4-Jan" 0.05 42.4 10.7 0.63 0.63 "USW00013893" "5-Jan" 0.05 42.3 10.7 0.79 0.79 "USW00013893" "6-Jan" 0.05 42.2 10.7 0.93 0.93 "USW00013893" "7-Jan" 0.05 42.1 10.7 1.08 1.08 "USW00013893" "8-Jan" 0.05 42 10.7 1.22 1.22 "USW00013893" "9-Jan" 0.05 42 10.7 1.36 1.36 "USW00013893" "10-Jan" 0.05 41.9 10.7 1.5 1.5 "USW00013893" "11-Jan" 0.05 41.8 10.7 1.64 1.64 "USW00013893" "12-Jan" 0.05 41.8 10.7 1.77 1.77 "USW00013893" "13-Jan" 0.05 41.7 10.7 1.9 1.9 "USW00013893" "14-Jan" 0.05 41.7 10.7 2.03 2.03 "USW00013893" "15-Jan" 0.05 41.7 10.6 2.15 2.15 "USW00013893" "16-Jan" 0.04 41.6 10.6 2.27 2.27
t.DATE = datetime(t.DATE,InputFormat="d-MMM")
t = 320×7 table
STATION DATE DLY-PRCP-25PCTL DLY-TAVG-NORMAL DLY-TAVG-STDDEV MTD-PRCP-NORMAL YTD-PRCP-NORMAL _____________ ___________ _______________ _______________ _______________ _______________ _______________ "USW00013893" 01-Jan-2022 0.05 42.7 10.6 0.16 0.16 "USW00013893" 02-Jan-2022 0.05 42.6 10.6 0.32 0.32 "USW00013893" 03-Jan-2022 0.05 42.5 10.7 0.48 0.48 "USW00013893" 04-Jan-2022 0.05 42.4 10.7 0.63 0.63 "USW00013893" 05-Jan-2022 0.05 42.3 10.7 0.79 0.79 "USW00013893" 06-Jan-2022 0.05 42.2 10.7 0.93 0.93 "USW00013893" 07-Jan-2022 0.05 42.1 10.7 1.08 1.08 "USW00013893" 08-Jan-2022 0.05 42 10.7 1.22 1.22 "USW00013893" 09-Jan-2022 0.05 42 10.7 1.36 1.36 "USW00013893" 10-Jan-2022 0.05 41.9 10.7 1.5 1.5 "USW00013893" 11-Jan-2022 0.05 41.8 10.7 1.64 1.64 "USW00013893" 12-Jan-2022 0.05 41.8 10.7 1.77 1.77 "USW00013893" 13-Jan-2022 0.05 41.7 10.7 1.9 1.9 "USW00013893" 14-Jan-2022 0.05 41.7 10.7 2.03 2.03 "USW00013893" 15-Jan-2022 0.05 41.7 10.6 2.15 2.15 "USW00013893" 16-Jan-2022 0.04 41.6 10.6 2.27 2.27

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