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Why Are Graphs And Charts Used To Represent Information Pdf

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A Complete Overview of the Best Data Visualization Tools

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You and I sift through a lot of data for our jobs. Data about website performance, sales performance, product adoption, customer service, marketing campaign results When you manage multiple content assets , such as social media or a blog, with multiple sources of data, it can get overwhelming.

What should you be tracking? What actually matters? How do you visualize and analyze the data so you can extract insights and actionable information? M ore importantly, how can you make reporting more efficient when you're busy working on multiple projects at once?

One of the struggles that slows down my own reporting and analysis is understanding what types of graphs to use -- and why. That's because choosing the wrong visual aid or simply defaulting to the most common type of data visualization could cause confusion with the viewer or lead to mistaken data interpretation. To create charts that clarify and provide the right canvas for analysis, you should first understand the reasons why you might need a chart.

In this post, I'll cover five questions to ask yourself when choosing a chart for your data. Charts are perfect for comparing one or many value sets, and they can easily show the low and high values in the data sets. To create a comparison chart, use these types of graphs:. Use this type of chart to show how individual parts make up the whole of something, such as the device type used for mobile visitors to your website or total sales broken down by sales rep.

Distribution charts help you to understand outliers, the normal tendency, and the range of information in your values. If you want to know more information about how a data set performed during a specific time period, there are specific chart types that do extremely well. Relationship charts are suited to showing how one variable relates to one or numerous different variables.

You could use this to show how something positively effects, has no effect, or negatively effects another variable. To better understand each chart and how they can be used, here's an overview of each type of chart. A column chart is used to show a comparison among different items, or it can show a comparison of items over time.

You could use this format to see the revenue per landing page or customers by close date. A bar graph, basically a horizontal column chart, should be used to avoid clutter when one data label is long or if you have more than 10 items to compare. This type of visualization can also be used to display negative numbers. A line graph reveals trends or progress over time and can be used to show many different categories of data. You should use it when you chart a continuous data set. A dual axis chart allows you to plot data using two y-axes and a shared x-axis.

It's used with three data sets, one of which is based on a continuous set of data and another which is better suited to being grouped by category. This should be used to visualize a correlation or the lack thereof between these three data sets.

An area chart is basically a line chart, but the space between the x-axis and the line is filled with a color or pattern. It is useful for showing part-to-whole relations, such as showing individual sales reps' contribution to total sales for a year. It helps you analyze both overall and individual trend information. This should be used to compare many different items and show the composition of each item being compared.

Also known as a marimekko chart, this type of graph can compare values, measure each one's composition, and show how your data is distributed across each one. In the graphic below, the x-axis compares each city to one another. Image via Mekko Graphics. A pie chart shows a static number and how categories represent part of a whole -- the composition of something.

A scatter plot or scattergram chart will show the relationship between two different variables or it can reveal the distribution trends.

It should be used when there are many different data points, and you want to highlight similarities in the data set. This is useful when looking for outliers or for understanding the distribution of your data. A bubble chart is similar to a scatter plot in that it can show distribution or relationship.

There is a third data set, which is indicated by the size of the bubble or circle. A waterfall chart should be used to show how an initial value is affected by intermediate values -- either positive or negative -- and resulted in a final value.

This should be used to reveal the composition of a number. An example of this would be to showcase how overall company revenue is influenced by different departments and leads to a specific profit number. Chart via Baans Consulting. A funnel chart shows a series of steps and the completion rate for each step. This can be used to track the sales process or the conversion rate across a series of pages or steps.

A bullet graph reveals progress toward a goal, compares this to another measure, and provides context in the form of a rating or performance. A heat map shows the relationship between two items and provides rating information, such as high to low or poor to excellent. The rating information is displayed using varying colors or saturation.

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Tables and graphs

There are different types of data that can be collected in an experiment. Typically, we try to design experiments that collect objective, quantitative data. This means that if two people made the same measurement with the same tool, they would get the same answer. The measurement is determined by the object that is being measured. The length of a worm measured with a ruler is an objective measurement.

What are tables and graphs? Tables and graphs are visual representations. They are used to organise information to show patterns and relationships. A graph shows this information by representing it as a shape. Researchers and scientists often use tables and graphs to report findings from their research.

In this article, I will show you the best types of charts in Excel for data analysis, presentation and reporting within 15 minutes. You will learn about the various Excel charts types from column charts, bar charts, line charts, pie charts to stacked area charts. The type of Excel chart you select for your analysis and reporting depends upon the type of data you want to analyze and report and what you want to do with data:. Following are the most popular Excel charts and graphs:. The second thing is to figure out if there was a rise or fall in the data. In other words, avoid using column charts if you have just one data series to plot:. Alternatively, avoid creating a column chart that has got more than four data series.

Pie charts, bar graphs, histograms, scatterplots Provides a significant amount of information. ▻ Moves The graphic used is determined by the types of data.

Presenting Data – Graphs and Tables

Our simple definition: Data viz is the communication of data in a visual manner, or turning raw data into insights that can be easily interpreted by your readers. Visualizing data is effective when done right. We define right when the data visualizations have served its purpose. A quick test - when people can interpret your visualization by asking more questions on the information displayed versus how or what is displayed, then you know you are on the right path. So in order to be highly effective, it is important to design the right visualizations for your data to allow yourself and team members to interpret and make decisions based off of what they observe.

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When to use a line chart

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What is Data Visualization?


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The purpose of a graph is to present data that are too numerous or complicated to should concisely convey as much information as possible about what the graph tells the reader, Manual of Style: A Guide for Authors and Editors 10th ed​.

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