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    (Wasn't sure where to put this)

    I've got some values from an experiment but to analyse I had to log it (Normalise), but now one of my data sets is a negative number. When I display this on a bar graph do I just take this value as zero ? (For the quantity I'm analyzing you can't have minus amount of it), I'm also going to be displaying a LSD bar- Don't know if that has any meaning.

    Feel like I'm answering my own question just want to be sure.
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    What was the experiment for? Details on the figure? Is the negative data point a control or experimental data point?
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    (Original post by zombiejon)
    What was the experiment for? Details on the figure? Is the negative data point a control or experimental data point?
    The experiment was Looking at the amount of a foreign molecule in a organism in response to treatments with a pathogen in different places .

    It is experimental data (i''m actually plotting the means of each treatment, so the negative value represents the that value logged)
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    I'd say mark it as zero and put in a note why.
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    (Original post by StudyingHelp)
    (Wasn't sure where to put this)

    I've got some values from an experiment but to analyse I had to log it (Normalise), but now one of my data sets is a negative number. When I display this on a bar graph do I just take this value as zero ? (For the quantity I'm analyzing you can't have minus amount of it), I'm also going to be displaying a LSD bar- Don't know if that has any meaning.

    Feel like I'm answering my own question just want to be sure.
    Bear in mind that a negative log just means that the number you're logging is between 0 and 1 (you cannot log a negative number), e.g. log100.01 = -2.
 
 
 
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