Matlab homework

Dalby 2017-7.csv file is below

Date	Minimum temperature (C)	Maximum temperature (C)	Rainfall (mm)	Evaporation (mm)	Sunshine (hours)	Direction of maximum wind gust	Speed of maximum wind gust (km/h)	Time of maximum wind gust	9am Temperature (C)	9am relative humidity (%)	9am cloud amount (oktas)	9am wind direction	9am wind speed (km/h)	9am MSL pressure (hPa)	3pm Temperature (C)	3pm relative humidity (%)	3pm cloud amount (oktas)	3pm wind direction	3pm wind speed (km/h)	3pm MSL pressure (hPa)
01-07-2017	2.2	19.7	0			ESE	26	09:30	10.9	77		ESE	13	1027.1	18.6	28		S	11	1024.7
02-07-2017	2	21	0			ESE	24	09:49	11.3	71		ESE	9	1027.2	20.4	28		E	9	1022.4
03-07-2017	4.9	21.4	0			NNW	41	11:48	12.2	82		SE	6	1023.3	21.3	49		NNW	22	1019.1
04-07-2017	9.5	25.3	1			NW	44	13:34	17.1	80		NNW	24	1021.1	24.4	33		WNW	30	1017.2
05-07-2017	8.6	25	0			SW	37	13:52	16.5	77		NNW	13	1020.3	16.7	71		SSW	24	1016.6
06-07-2017	5.5	21.8	3.6			WNW	26	13:34	12.6	83		WSW	2	1020.6	20.2	40		W	17	1016.7
07-07-2017	9.5	18.9	1.8			NW	35	13:07	12.9	91		SE	7	1016.9	18.3	83		NW	20	1014
08-07-2017	3.2	19.2	1.8			WSW	31	13:18	11.7	68		WNW	13	1020.4	18.5	25		WSW	17	1018.1
09-07-2017	1.7	18.7	0			SE	19	11:12	10	68		SE	7	1022.7	17.9	29		SW	4	1020.4
10-07-2017	7.8	16.9	0			SSW	28	14:22	12.7	57		SE	7	1025.9	15.8	38		S	15	1024
11-07-2017	8	20.1	2.2			SW	43	14:01	13	64		SE	7	1028.4	19.4	22		SSW	20	1025.1
12-07-2017	1.9	20.8	0			ESE	31	14:58	11.1	72		SE	13	1029.7	19.4	33		ESE	22	1025.1
13-07-2017	4.9	21	0			ESE	30	09:38	12.2	76		ESE	17	1027.1	18.8	40		ESE	9	1023.1
14-07-2017	3.3	22.3	0			NNW	33	13:46	13.4	75			Calm	1023.6	21	30		WNW	17	1019.7
15-07-2017	8.5	24	0			NNW	50	10:00	16.4	76		NNW	24	1021.9	22	42		NNW	28	1017.4
16-07-2017	11.7	20.4	19.6			ENE	30	04:46	14.6	85		SSW	11	1021.3	19.8	52		SE	9	1018.9
17-07-2017	7.8	23.3	0.2			NNW	39	14:06	15	83		NNW	9	1022.3	22.6	50		NW	22	1018.4
18-07-2017	10.4	25.1	0			NNW	50	12:11	19.2	56		N	28	1020.3	24.6	42		NW	24	1015.1
19-07-2017	8.7	17.5	1			W	65	13:35	12.1	50		WSW	24	1016.8	16.6	32		WSW	37	1012.8
20-07-2017	3.3	18	0			SW	48	14:01	11.3	68		SW	15	1019.9	17.4	31		SW	24	1016.7
21-07-2017	-1.1	19	0			SW	30	13:43	8.5	58		S	6	1021.5	18.4	14		SSW	20	1018
22-07-2017	-1.4	19.7	0			W	22	14:09	9	53		SE	2	1024.7	19	20		NE	7	1020.1
23-07-2017	0.9	21.5	0			NW	31	10:35	13.7	66		NNW	11	1023.1	20.8	23		W	17	1018.5
24-07-2017	-0.5	23.1	0			SW	30	15:33	11.2	50		W	2	1023.6	22.8	15		SSW	11	1020.4
25-07-2017	-0.3	22.2	0			SW	31	12:59	11.5	47			Calm	1025.5	21.6	18		SSW	19	1021.6
26-07-2017	0.8	24.3	0			SW	30	14:10	12.2	43		SE	6	1024.6	23.9	16		SSW	19	1020.6
27-07-2017	1.9	24	0			SSW	37	13:16	14.8	37		NNW	2	1024.7	23.3	17		SSW	11	1021
28-07-2017	3.1	25.8	0			NNW	46	09:35	18.4	51		NNW	30	1023.4	25.5	16		SSW	24	1019.7
29-07-2017	2.4	24.7	0			SW	39	13:40	14.5	38		NNW	7	1023.1	24.4	11		WSW	20	1019.6
30-07-2017	1.9	26.3	0			WNW	28	11:55	15.1	35		NNW	7	1022.9	25.8	16		NW	15	1018.3
31-07-2017	6.6	25.7	0			NW	44	11:54	19.1	52		NNW	28	1022.7	25.1	22		W	30	1018.4

Matlab home work:

Recordings from the Bureau of Meteorology of the weather in Dalby have been made. Yourtask is to analyse the data to identify the behaviour of the weather for the period of measurements. The data is stored in the file ass1in.zip; each file contains a month of data and is named according to the year and month of the measurements. One of the quantities of interest is the air density, which can found using the ideal gas law:

rho = p/RT

where p is the pressure, the ideal gas constant for air is R= 286.9 J/kg.K, and T is the temperature (in SI units).

2 Requirements

For this assessment item, you must perform hand calculations:

1. For the first 3 days and last 2 days of July 2017, find how much hotter the maximum temperature was than the minimum temperature for the same day.

2. For the first 3 days of July 2017, calculate the air density at 9:00 a.m.

3. Determine when in July the cumulative rainfall for the month exceeds 7 mm.

You must also produce MATLAB code, stored as m-file(s), which:

4. Repeats the calculation of Requirement 1 by creating vectors in MATLAB and typing/copying the values from the spreadsheet into the vectors. Verifies the answers, including a report printed to the Command Window regarding the outcome of the verification (merely displaying values in the Command Window will not earn any marks for verification).

5. Successfully loads Dalby 2017-7.csv into MATLAB (the numbers are not to appear in MATLAB code via copy-and-paste!). One possible way of loading the data is using MATLABs Import Data wizard. If you use MATLABs Import Data wizard, you must use the Generate Function option, otherwise your code will not work on another computer, which will automatically mean a loss of marks. Codes which load an edited version of Dalby 2017-7.csv to that supplied will not receive maximum marks. Verifies that the load has been successful by using MATLAB to compare the values of minimum and maximum temperature to those manually entered in Requirement 4.

6. Repeats the calculation of Requirement 1 for the entire month using the data loaded from Requirement 5. Verifies the answers by checking the results from Requirement 5 with the relevant days.

7. Plots the maximum and minimum temperatures along with the results from Requirement 6 for each day on the same graph. The dates should be represented in some manner on the x-axis; for maximum marks, these should appear in standard date format (e.g. 15/7).

8. *Calculates the air density at 9:00 a.m. each day for the entire month using a for loop.

9. Verifies the answers from Requirement 8 by comparing the relevant days with the answers from Requirement 2.