Mixing
using Negative values for a box plot (box whisker)
$begingroup$
I am drawing a box plot for a question where the data set is the bulb life time(in hours)
My 5 number summary is
Q1 : 208.25
Q2 : 297
Q3 : 376.5
min : 172
max : 1020
IQR : 168.25
3/2 * IQR : 252.375
Upper Bound : 628.875
Lower Bound : -44.125
Since the data set is about time, I know I can not use negative values,so what should I use as my negative value, I know I won't get any outliers here but still I'm curious.
statistics descriptive-statistics
asked Apr 21 '16 at 16:19
laish138laish138
83
$endgroup$
add a comment |
$begingroup$
I am drawing a box plot for a question where the data set is the bulb life time(in hours)
My 5 number summary is
Q1 : 208.25
Q2 : 297
Q3 : 376.5
min : 172
max : 1020
IQR : 168.25
3/2 * IQR : 252.375
Upper Bound : 628.875
Lower Bound : -44.125
Since the data set is about time, I know I can not use negative values,so what should I use as my negative value, I know I won't get any outliers here but still I'm curious.
statistics descriptive-statistics
asked Apr 21 '16 at 16:19
laish138laish138
83
$endgroup$
$begingroup$
This does not seem a situation in which a boxplot is a helpful descriptive graphic. If you feel you must make a boxplot, perhaps truncate the whisker at 0, and explain in a footnote.
$endgroup$
– BruceET
Apr 22 '16 at 5:25
add a comment |
$begingroup$
I am drawing a box plot for a question where the data set is the bulb life time(in hours)
My 5 number summary is
Q1 : 208.25
Q2 : 297
Q3 : 376.5
min : 172
max : 1020
IQR : 168.25
3/2 * IQR : 252.375
Upper Bound : 628.875
Lower Bound : -44.125
Since the data set is about time, I know I can not use negative values,so what should I use as my negative value, I know I won't get any outliers here but still I'm curious.
statistics descriptive-statistics
asked Apr 21 '16 at 16:19
laish138laish138
83
$endgroup$
I am drawing a box plot for a question where the data set is the bulb life time(in hours)
My 5 number summary is
Q1 : 208.25
Q2 : 297
Q3 : 376.5
min : 172
max : 1020
IQR : 168.25
3/2 * IQR : 252.375
Upper Bound : 628.875
Lower Bound : -44.125
Since the data set is about time, I know I can not use negative values,so what should I use as my negative value, I know I won't get any outliers here but still I'm curious.
statistics descriptive-statistics
statistics descriptive-statistics
asked Apr 21 '16 at 16:19
laish138laish138
83
asked Apr 21 '16 at 16:19
laish138laish138
83
asked Apr 21 '16 at 16:19
laish138laish138
83
asked Apr 21 '16 at 16:19
laish138laish138
83
asked Apr 21 '16 at 16:19
laish138laish138
83
83
$begingroup$
This does not seem a situation in which a boxplot is a helpful descriptive graphic. If you feel you must make a boxplot, perhaps truncate the whisker at 0, and explain in a footnote.
$endgroup$
– BruceET
Apr 22 '16 at 5:25
add a comment |
$begingroup$
This does not seem a situation in which a boxplot is a helpful descriptive graphic. If you feel you must make a boxplot, perhaps truncate the whisker at 0, and explain in a footnote.
$endgroup$
– BruceET
Apr 22 '16 at 5:25
$begingroup$
This does not seem a situation in which a boxplot is a helpful descriptive graphic. If you feel you must make a boxplot, perhaps truncate the whisker at 0, and explain in a footnote.
$endgroup$
– BruceET
Apr 22 '16 at 5:25
$begingroup$
This does not seem a situation in which a boxplot is a helpful descriptive graphic. If you feel you must make a boxplot, perhaps truncate the whisker at 0, and explain in a footnote.
$endgroup$
– BruceET
Apr 22 '16 at 5:25
add a comment |
1 Answer
1
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$begingroup$
Never plot a box-whisker plot beyond min and max of data. Upper and lower bound are just used to find out outliers and extreme outliers. In this case you have to take lower bound as 172. You can use MATLAB command : boxplot(x) to check the same rule.
answered Apr 27 '16 at 9:14
TabTab
1417
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add a comment |
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$begingroup$
Never plot a box-whisker plot beyond min and max of data. Upper and lower bound are just used to find out outliers and extreme outliers. In this case you have to take lower bound as 172. You can use MATLAB command : boxplot(x) to check the same rule.
answered Apr 27 '16 at 9:14
TabTab
1417
$endgroup$
add a comment |
$begingroup$
Never plot a box-whisker plot beyond min and max of data. Upper and lower bound are just used to find out outliers and extreme outliers. In this case you have to take lower bound as 172. You can use MATLAB command : boxplot(x) to check the same rule.
answered Apr 27 '16 at 9:14
TabTab
1417
$endgroup$
add a comment |
$begingroup$
Never plot a box-whisker plot beyond min and max of data. Upper and lower bound are just used to find out outliers and extreme outliers. In this case you have to take lower bound as 172. You can use MATLAB command : boxplot(x) to check the same rule.
answered Apr 27 '16 at 9:14
TabTab
1417
$endgroup$
Never plot a box-whisker plot beyond min and max of data. Upper and lower bound are just used to find out outliers and extreme outliers. In this case you have to take lower bound as 172. You can use MATLAB command : boxplot(x) to check the same rule.
answered Apr 27 '16 at 9:14
TabTab
1417
answered Apr 27 '16 at 9:14
TabTab
1417
answered Apr 27 '16 at 9:14
TabTab
1417
answered Apr 27 '16 at 9:14
TabTab
1417
1417
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$begingroup$
This does not seem a situation in which a boxplot is a helpful descriptive graphic. If you feel you must make a boxplot, perhaps truncate the whisker at 0, and explain in a footnote.
$endgroup$
– BruceET
Apr 22 '16 at 5:25