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C1667866

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Here is the graph and table to go with my pie chart

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Here is the graph and table to go with my pie chart

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Here is the plot graph of the 'Counts'

CY: Alvin, that's an innovation using dual bar showing both the absolute values and the percentage, which would be better if you add secondary Y axis to the right side, to denote the percentage. Conventionally, pie chart shows percentage, as the whole pie is 100%, people can quickly capture the percentages by the size of the individual components. Bar graph shows good comparisons between different individuals in terms of absolute values.

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CY: What's your name? The two plotting are good, the old newspaper style plotting is interesting. I like the bar graph without the vertical axis idea as long as the values are given to individuals that's fine. One suggestion would be the legend of the pie chart can be improved, as it's hard to differentiate the patterns. Thinking if your pie and bar are printed by black and white printer, can they be well seen?

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Hi Chris, I did this on my phone during the lecture and have entered the data incorrectly. I will make another in the morning on my PC.

Gareth

CY: Absolutely Fine

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CY: Michalis, they are both excellent plotting, I like both 3D ideas, one comment would be adding values to the bar graph, and either uploading the excel file to Padlet, or make a better screenshot, I can demonstrate how to make screenshot some point. Other than that are wonderful.

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CY: Ryan, nice job done, my suggestions would be: 1) Add percentage numbers to individual otherwise it's very qualitative rather than quantitative; 2) Where is the bar graph for the Count? 3) When making screenshot, click mouse outside the graph, those handles will disappear .

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TEAM X

CY: Team X or sole Jordan: The pie chart is nicely done with good presentations of the individual percentages. Since the pie is very big, the labels look relatively small, when you insert to a report, you will hardly see the words unless enlarge them. A minor problem, why a grey vertical line is shown at the bottom? Could you also plot the count using a bar graph?

CY: Jordan, Sorry I didn't see you have plotted the bar graph in another spreadsheet, which is good. All the labels and values are given and inclusive. Perhaps the font size could be enlarged. If you try to insert a diagram in a report, the size of the diagram would not excess normally 1/3 of a page, i.e., about 8cm height, can you still clearly read the values on your pie chart / bar graph? That's the way of checking whether the size is fit or not.

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CY: Alvin, the pie chart is not bad at all, all the information including labels, values are there. Would you also plot the bar graph of the counts please?

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Hossein Ramezanian
c1667866

CY: Hossein, very neat and tidy pie, the colour makes me feel it a lemon! All components such as title, percentage labels, legend are there. Where is the bar graph showing the counts for individuals?

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C1647183

CY: Shereen, almost perfect, the 3D effect makes the pie tasted! I like the table added to the bottom of the bar graph, I would delete the 'Series 1' thing at the bottom. The only improvement would be keeping the colour of individual constant in two plotting, the 'Married' is both red, which is fine. Other status can make the same colours. Well done anyway !

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Matt Griffiths-Tomczyk
C1616556

CY: Matt, good use of 3D pie! That makes it cool. Consider not to duplicate the labels, the indicators in the pie repeat the legend. Where is the bar graph showing the absolute values? give it a go?

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C1666326

CY: Kad, good try and the shadow make the pie cool. suggestions: also try to plot the absolute counts in a bar graph. I would change the colour in the pie chart to make more distinct on the different individuals.

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C1663940

CY: Ben, almost perfect in the bar graph, the colours are good and distinct from each other. Good labels at the top of each bar. two comments: when making screenshot, move away the mouse from the plot and the 'plot area' thing may exclude. The bottom 'Marital status' can be deleted as the title says this already - fully labelled but not over labelled. Where is the pie chart showing the percentage?

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C1611597

CY: Ali, not bad at all, the background colour is cool. Better to also plot a bar graph to display the absolute counts as well.

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CY: Thomas, nice try, two comments: % would be added to tell this is a percentage pie chart; where is the bar graph showing the absolute counts?

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c1646507
Ann Holzmann

CY: Ann, the colour are so good and showing excellent contrast. Two comments, the colour boxes can be enlarged, my monitor doesn't show apparent difference between the colour of the box used of 'Never married' and 'Widowed'. Where is the bar graph showing the absolute values?

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CY: Harry, I love the neat style you are presenting in the pie chart. Colours are good and clear, the legend nicely places at the right. The impression of looking at this is good. Where is the bar graph showing the absolute counts? Look at the left done by Shereen.

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CY: Thomas, a good repeat of the Energy Mix, both bar graph and pie chart are good, cool background colour.

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Gareth Goodchild

CY: Gareth, good work! Consider a few comments: 1. In the raw data table, the individual data in the count variable is wrongly typed in; 2. Better to plot a bar graph to show the absolute counts; 3. The labels of marital status in the pie chart is good, what's the 0% in the chart? check to delete / rectify any errors after complete the plotting.

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Homework:
(1) Convert the below data to a spreadsheet.

(2) Display the data in a well-labelled graph or chart.

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Demonstration:

(1) Convert the below data of 'UK Energy Mix 2016' to a spreadsheet.

(2) Display the data in a well-labelled bar graph.

(3) Calculate each energy generation in percentage in the spreadsheet.

(4) Display the percentage in a pie chart.

The bar graph quickly compares the sizes of the individual energy source, the heights of the five bars show the values of the five sources.

The pie chart helps us see what part of the whole each source forms.

Bar graphs and pie charts help an audience grasp the distribution quickly.

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Exercise:

1. Plot a straight line, whose extremes are Point A(1, 3) and Point B(5, 2), on a Cartesian system.
2. Calculate the distance between the origin and Point A, the origin and Point B.
3. Determine the polar coordinates of Point A and Point B.

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Cartesian system
A Cartesian coordinate system is a coordinate system that specifies each point uniquely in a plane by a pair of numerical coordinates, which are the signed distances to the point from two fixed perpendicular directed lines, measured in the same unit of length.

Polar system
A polar coordinate system is a two-dimensional coordinate system in which each point on a plane is determined by a distance from a reference point and an angle from a reference direction.

Cartesian and polar systems can be converted by the formulae given below.

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3. Categorical and quantitative variables

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3. Categorical and quantitative variables

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Some variables, like gender and major, simply place individuals into categories – categorical variables

A quantitative variable takes numerical values

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Try to type in data in Excel.

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Statistics is the science of data. Any set of data contains information about some group of individuals. The information is organised in variables.

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Facts and statistics collected together for reference or analysis.

A mobile phone heart rate monitor can measure heart rate.

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Facts and statistics collected together for reference or analysis.