plot_hist_with_fit: Plot histogram with fitted curve
In alexholcombe/mixRSVP: Mixture Model Temporal Errors In RSVP Data

Plot histogram with fitted curve

1 2	plot_hist_with_fit(df, minSPE, maxSPE, targetSP, numItemsInStream, plotContinuousGaussian, annotateIt, showIt)

`df`	A dataframe that must have fields targetSP and SPE
`annotateIt`	Add text to the plot indicating fit efficacy, latency, precision, and negative log likelihood
`showIt`	Show plot, otherwise only return plot object without actually showing it

 ## Not run: 
df <-  subset(P2E2pilot,subject=="CB" & target==1 & condition==1)
plot_hist_with_fit(df, -11, 11, df$targetSP, 16, TRUE, TRUE, TRUE)
 
## End(Not run)