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Monthly Archives: September 2013
Python Variable Names
I learned today that in Python, variable names cannot start with a number. For example, this is an incorrect variable name: 1_AA_aa This could be used instead: AA_aa1 http://en.wikibooks.org/wiki/Python_Beginner_to_Expert/Native_Types
Posted in Python
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Jan. 10 Wiki competition for Computational Biology articles
Posted in Articles, Computational Biology
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Maximum Value in Subset
What was the maximum ozone value in the month of May (i.e. Month = 5)? Google “R subset data maximum value”: [1] http://stackoverflow.com/questions/12350783/find-max-mean-min-of-the-a-subset-in-r
Posted in Coursera, R
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Subset data equal to one value
What is the mean of “Temp” when “Month” is equal to 6?
Posted in Coursera, R
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Range of Data
Extract the subset of rows of the data frame where Ozone values are above 31 and Temp values are above 90. What is the mean of Solar.R in this subset? Google search: “R subset values in one column above threshold” … Continue reading
Posted in Coursera, R
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