[gnumeric] Fix documentation of r.q*.

[Andreas J. Guelzow <guelzow src gnome org>]

commit ef32921451ce7a26fb50e5a71688791a2f49fe68
Author: Andreas J Guelzow <aguelzow pyrshep ca>
Date:   Tue Jun 25 22:07:11 2013 -0600

    Fix documentation of r.q*.
    
    2013-06-25  Andreas J. Guelzow <aguelzow pyrshep ca>
    
        * functions.c (help_r_q*): correct description of p and log_p

 NEWS                       |    1 +
 plugins/excel/xlsx-utils.c |    2 +-
 plugins/fn-r/ChangeLog     |    4 ++
 plugins/fn-r/functions.c   |   72 ++++++++++++++++++++++----------------------
 4 files changed, 42 insertions(+), 37 deletions(-)
---
diff --git a/NEWS b/NEWS
index 6a8b37b..d020518 100644
--- a/NEWS
+++ b/NEWS
@@ -2,6 +2,7 @@ Gnumeric 1.12.4
 
 Andreas:
        * Improve xlsx export of Gnumeric functions.
+       * Fix documentation of r.q*.
 
 Morten:
        * Improve accuracy for 2-argument ERF.
diff --git a/plugins/excel/xlsx-utils.c b/plugins/excel/xlsx-utils.c
index 051a8cc..eefdacd 100644
--- a/plugins/excel/xlsx-utils.c
+++ b/plugins/excel/xlsx-utils.c
@@ -370,7 +370,7 @@ xlsx_func_finv_output_handler (GnmConventionsOut *out, GnmExprFunction const *fu
 static gboolean
 xlsx_func_binominv_output_handler (GnmConventionsOut *out, GnmExprFunction const *func)
 {
-       return xlsx_func_r_q_output_handler (out, func, 2, 2, "_xlfn.binom.INV", NULL);
+       return xlsx_func_r_q_output_handler (out, func, 2, 2, "_xlfn.BINOM.INV", NULL);
 }
 
 static gboolean
diff --git a/plugins/fn-r/ChangeLog b/plugins/fn-r/ChangeLog
index c343e2e..d327fd9 100644
--- a/plugins/fn-r/ChangeLog
+++ b/plugins/fn-r/ChangeLog
@@ -1,3 +1,7 @@
+2013-06-25  Andreas J. Guelzow <aguelzow pyrshep ca>
+
+       * functions.c (help_r_q*): correct description of p and log_p
+
 2013-06-25  Morten Welinder <terra gnome org>
 
        * Release 1.12.3
diff --git a/plugins/fn-r/functions.c b/plugins/fn-r/functions.c
index 8bd8dcf..92a5dad 100644
--- a/plugins/fn-r/functions.c
+++ b/plugins/fn-r/functions.c
@@ -66,11 +66,11 @@ gnumeric_r_pnorm (GnmFuncEvalInfo *ei, GnmValue const * const *args)
 
 static GnmFuncHelp const help_r_qnorm[] = {
        { GNM_FUNC_HELP_NAME, F_("R.QNORM:probability quantile function of the normal distribution") },
-       { GNM_FUNC_HELP_ARG, F_("p:probability") },
+       { GNM_FUNC_HELP_ARG, F_("p:probability or natural logarithm of the probability") },
        { GNM_FUNC_HELP_ARG, F_("mu:mean of the distribution") },
        { GNM_FUNC_HELP_ARG, F_("sigma:standard deviation of the distribution") },
        { GNM_FUNC_HELP_ARG, F_("lower_tail:if true (the default), the lower tail of the distribution is 
considered") },
-       { GNM_FUNC_HELP_ARG, F_("log_p:if true, log of the probability is used") },
+       { GNM_FUNC_HELP_ARG, F_("log_p:if true, @{p} is the natural logarithm of the probability; defaults to 
false") },
        { GNM_FUNC_HELP_DESCRIPTION, F_("This function returns the probability quantile function, i.e., the 
inverse of the cumulative distribution function, of the normal distribution.") },
        { GNM_FUNC_HELP_SEEALSO, "R.DNORM,R.PNORM" },
        { GNM_FUNC_HELP_END }
@@ -142,11 +142,11 @@ gnumeric_r_plnorm (GnmFuncEvalInfo *ei, GnmValue const * const *args)
 
 static GnmFuncHelp const help_r_qlnorm[] = {
        { GNM_FUNC_HELP_NAME, F_("R.QLNORM:probability quantile function of the log-normal distribution") },
-       { GNM_FUNC_HELP_ARG, F_("p:probability") },
+       { GNM_FUNC_HELP_ARG, F_("p:probability or natural logarithm of the probability") },
        { GNM_FUNC_HELP_ARG, F_("logmean:mean of the underlying normal distribution") },
        { GNM_FUNC_HELP_ARG, F_("logsd:standard deviation of the underlying normal distribution") },
        { GNM_FUNC_HELP_ARG, F_("lower_tail:if true (the default), the lower tail of the distribution is 
considered") },
-       { GNM_FUNC_HELP_ARG, F_("log_p:if true, log of the probability is used") },
+       { GNM_FUNC_HELP_ARG, F_("log_p:if true, @{p} is the natural logarithm of the probability; defaults to 
false") },
        { GNM_FUNC_HELP_DESCRIPTION, F_("This function returns the probability quantile function, i.e., the 
inverse of the cumulative distribution function, of the log-normal distribution.") },
        { GNM_FUNC_HELP_SEEALSO, "R.DLNORM,R.PLNORM" },
        { GNM_FUNC_HELP_END }
@@ -218,11 +218,11 @@ gnumeric_r_pgamma (GnmFuncEvalInfo *ei, GnmValue const * const *args)
 
 static GnmFuncHelp const help_r_qgamma[] = {
        { GNM_FUNC_HELP_NAME, F_("R.QGAMMA:probability quantile function of the gamma distribution") },
-       { GNM_FUNC_HELP_ARG, F_("p:probability") },
+       { GNM_FUNC_HELP_ARG, F_("p:probability or natural logarithm of the probability") },
        { GNM_FUNC_HELP_ARG, F_("shape:the shape parameter of the distribution") },
        { GNM_FUNC_HELP_ARG, F_("scale:the scale parameter of the distribution") },
        { GNM_FUNC_HELP_ARG, F_("lower_tail:if true (the default), the lower tail of the distribution is 
considered") },
-       { GNM_FUNC_HELP_ARG, F_("log_p:if true, log of the probability is used") },
+       { GNM_FUNC_HELP_ARG, F_("log_p:if true, @{p} is the natural logarithm of the probability; defaults to 
false") },
        { GNM_FUNC_HELP_DESCRIPTION, F_("This function returns the probability quantile function, i.e., the 
inverse of the cumulative distribution function, of the gamma distribution.") },
        { GNM_FUNC_HELP_SEEALSO, "R.DGAMMA,R.PGAMMA" },
        { GNM_FUNC_HELP_END }
@@ -294,11 +294,11 @@ gnumeric_r_pbeta (GnmFuncEvalInfo *ei, GnmValue const * const *args)
 
 static GnmFuncHelp const help_r_qbeta[] = {
        { GNM_FUNC_HELP_NAME, F_("R.QBETA:probability quantile function of the beta distribution") },
-       { GNM_FUNC_HELP_ARG, F_("p:probability") },
+       { GNM_FUNC_HELP_ARG, F_("p:probability or natural logarithm of the probability") },
        { GNM_FUNC_HELP_ARG, F_("a:the first shape parameter of the distribution") },
        { GNM_FUNC_HELP_ARG, F_("b:the second scale parameter of the distribution") },
        { GNM_FUNC_HELP_ARG, F_("lower_tail:if true (the default), the lower tail of the distribution is 
considered") },
-       { GNM_FUNC_HELP_ARG, F_("log_p:if true, log of the probability is used") },
+       { GNM_FUNC_HELP_ARG, F_("log_p:if true, @{p} is the natural logarithm of the probability; defaults to 
false") },
        { GNM_FUNC_HELP_DESCRIPTION, F_("This function returns the probability quantile function, i.e., the 
inverse of the cumulative distribution function, of the beta distribution.") },
        { GNM_FUNC_HELP_SEEALSO, "R.DBETA,R.PBETA" },
        { GNM_FUNC_HELP_END }
@@ -366,10 +366,10 @@ gnumeric_r_pt (GnmFuncEvalInfo *ei, GnmValue const * const *args)
 
 static GnmFuncHelp const help_r_qt[] = {
        { GNM_FUNC_HELP_NAME, F_("R.QT:probability quantile function of the Student t distribution") },
-       { GNM_FUNC_HELP_ARG, F_("p:probability") },
+       { GNM_FUNC_HELP_ARG, F_("p:probability or natural logarithm of the probability") },
        { GNM_FUNC_HELP_ARG, F_("n:the number of degrees of freedom of the distribution") },
        { GNM_FUNC_HELP_ARG, F_("lower_tail:if true (the default), the lower tail of the distribution is 
considered") },
-       { GNM_FUNC_HELP_ARG, F_("log_p:if true, log of the probability is used") },
+       { GNM_FUNC_HELP_ARG, F_("log_p:if true, @{p} is the natural logarithm of the probability; defaults to 
false") },
        { GNM_FUNC_HELP_DESCRIPTION, F_("This function returns the probability quantile function, i.e., the 
inverse of the cumulative distribution function, of the Student t distribution.") },
        { GNM_FUNC_HELP_SEEALSO, "R.DT,R.PT" },
        { GNM_FUNC_HELP_END }
@@ -440,11 +440,11 @@ gnumeric_r_pf (GnmFuncEvalInfo *ei, GnmValue const * const *args)
 
 static GnmFuncHelp const help_r_qf[] = {
        { GNM_FUNC_HELP_NAME, F_("R.QF:probability quantile function of the F distribution") },
-       { GNM_FUNC_HELP_ARG, F_("p:probability") },
+       { GNM_FUNC_HELP_ARG, F_("p:probability or natural logarithm of the probability") },
        { GNM_FUNC_HELP_ARG, F_("n1:the first number of degrees of freedom of the distribution") },
        { GNM_FUNC_HELP_ARG, F_("n2:the second number of degrees of freedom of the distribution") },
        { GNM_FUNC_HELP_ARG, F_("lower_tail:if true (the default), the lower tail of the distribution is 
considered") },
-       { GNM_FUNC_HELP_ARG, F_("log_p:if true, log of the probability is used") },
+       { GNM_FUNC_HELP_ARG, F_("log_p:if true, @{p} is the natural logarithm of the probability; defaults to 
false") },
        { GNM_FUNC_HELP_DESCRIPTION, F_("This function returns the probability quantile function, i.e., the 
inverse of the cumulative distribution function, of the F distribution.") },
        { GNM_FUNC_HELP_SEEALSO, "R.DF,R.PF" },
        { GNM_FUNC_HELP_END }
@@ -514,10 +514,10 @@ gnumeric_r_pchisq (GnmFuncEvalInfo *ei, GnmValue const * const *args)
 
 static GnmFuncHelp const help_r_qchisq[] = {
        { GNM_FUNC_HELP_NAME, F_("R.QCHISQ:probability quantile function of the chi-square distribution") },
-       { GNM_FUNC_HELP_ARG, F_("p:probability") },
+       { GNM_FUNC_HELP_ARG, F_("p:probability or natural logarithm of the probability") },
        { GNM_FUNC_HELP_ARG, F_("df:the number of degrees of freedom of the distribution") },
        { GNM_FUNC_HELP_ARG, F_("lower_tail:if true (the default), the lower tail of the distribution is 
considered") },
-       { GNM_FUNC_HELP_ARG, F_("log_p:if true, log of the probability is used") },
+       { GNM_FUNC_HELP_ARG, F_("log_p:if true, @{p} is the natural logarithm of the probability; defaults to 
false") },
        { GNM_FUNC_HELP_DESCRIPTION, F_("This function returns the probability quantile function, i.e., the 
inverse of the cumulative distribution function, of the chi-square distribution.") },
        { GNM_FUNC_HELP_ODF, F_("A two argument invocation R.QCHISQ(@{p},@{df}) is exported to OpenFormula as 
CHISQINV(@{p},@{df}).") },
        { GNM_FUNC_HELP_SEEALSO, "R.DCHISQ,R.PCHISQ" },
@@ -589,11 +589,11 @@ gnumeric_r_pweibull (GnmFuncEvalInfo *ei, GnmValue const * const *args)
 
 static GnmFuncHelp const help_r_qweibull[] = {
        { GNM_FUNC_HELP_NAME, F_("R.QWEIBULL:probability quantile function of the Weibull distribution") },
-       { GNM_FUNC_HELP_ARG, F_("p:probability") },
+       { GNM_FUNC_HELP_ARG, F_("p:probability or natural logarithm of the probability") },
        { GNM_FUNC_HELP_ARG, F_("shape:the shape parameter of the distribution") },
        { GNM_FUNC_HELP_ARG, F_("scale:the scale parameter of the distribution") },
        { GNM_FUNC_HELP_ARG, F_("lower_tail:if true (the default), the lower tail of the distribution is 
considered") },
-       { GNM_FUNC_HELP_ARG, F_("log_p:if true, log of the probability is used") },
+       { GNM_FUNC_HELP_ARG, F_("log_p:if true, @{p} is the natural logarithm of the probability; defaults to 
false") },
        { GNM_FUNC_HELP_DESCRIPTION, F_("This function returns the probability quantile function, i.e., the 
inverse of the cumulative distribution function, of the Weibull distribution.") },
        { GNM_FUNC_HELP_SEEALSO, "R.DWEIBULL,R.PWEIBULL" },
        { GNM_FUNC_HELP_END }
@@ -661,10 +661,10 @@ gnumeric_r_ppois (GnmFuncEvalInfo *ei, GnmValue const * const *args)
 
 static GnmFuncHelp const help_r_qpois[] = {
        { GNM_FUNC_HELP_NAME, F_("R.QPOIS:probability quantile function of the Poisson distribution") },
-       { GNM_FUNC_HELP_ARG, F_("p:probability") },
+       { GNM_FUNC_HELP_ARG, F_("p:probability or natural logarithm of the probability") },
        { GNM_FUNC_HELP_ARG, F_("lambda:the mean of the distribution") },
        { GNM_FUNC_HELP_ARG, F_("lower_tail:if true (the default), the lower tail of the distribution is 
considered") },
-       { GNM_FUNC_HELP_ARG, F_("log_p:if true, log of the probability is used") },
+       { GNM_FUNC_HELP_ARG, F_("log_p:if true, @{p} is the natural logarithm of the probability; defaults to 
false") },
        { GNM_FUNC_HELP_DESCRIPTION, F_("This function returns the probability quantile function, i.e., the 
inverse of the cumulative distribution function, of the Poisson distribution.") },
        { GNM_FUNC_HELP_SEEALSO, "R.DPOIS,R.PPOIS" },
        { GNM_FUNC_HELP_END }
@@ -731,10 +731,10 @@ gnumeric_r_pexp (GnmFuncEvalInfo *ei, GnmValue const * const *args)
 
 static GnmFuncHelp const help_r_qexp[] = {
        { GNM_FUNC_HELP_NAME, F_("R.QEXP:probability quantile function of the exponential distribution") },
-       { GNM_FUNC_HELP_ARG, F_("p:probability") },
+       { GNM_FUNC_HELP_ARG, F_("p:probability or natural logarithm of the probability") },
        { GNM_FUNC_HELP_ARG, F_("scale:the scale parameter of the distribution") },
        { GNM_FUNC_HELP_ARG, F_("lower_tail:if true (the default), the lower tail of the distribution is 
considered") },
-       { GNM_FUNC_HELP_ARG, F_("log_p:if true, log of the probability is used") },
+       { GNM_FUNC_HELP_ARG, F_("log_p:if true, @{p} is the natural logarithm of the probability; defaults to 
false") },
        { GNM_FUNC_HELP_DESCRIPTION, F_("This function returns the probability quantile function, i.e., the 
inverse of the cumulative distribution function, of the exponential distribution.") },
        { GNM_FUNC_HELP_SEEALSO, "R.DEXP,R.PEXP" },
        { GNM_FUNC_HELP_END }
@@ -805,11 +805,11 @@ gnumeric_r_pbinom (GnmFuncEvalInfo *ei, GnmValue const * const *args)
 
 static GnmFuncHelp const help_r_qbinom[] = {
        { GNM_FUNC_HELP_NAME, F_("R.QBINOM:probability quantile function of the binomial distribution") },
-       { GNM_FUNC_HELP_ARG, F_("p:probability") },
+       { GNM_FUNC_HELP_ARG, F_("p:probability or natural logarithm of the probability") },
        { GNM_FUNC_HELP_ARG, F_("n:the number of trials") },
        { GNM_FUNC_HELP_ARG, F_("psuc:the probability of success in each trial") },
        { GNM_FUNC_HELP_ARG, F_("lower_tail:if true (the default), the lower tail of the distribution is 
considered") },
-       { GNM_FUNC_HELP_ARG, F_("log_p:if true, log of the probability is used") },
+       { GNM_FUNC_HELP_ARG, F_("log_p:if true, @{p} is the natural logarithm of the probability; defaults to 
false") },
        { GNM_FUNC_HELP_DESCRIPTION, F_("This function returns the probability quantile function, i.e., the 
inverse of the cumulative distribution function, of the binomial distribution.") },
        { GNM_FUNC_HELP_SEEALSO, "R.DBINOM,R.PBINOM" },
        { GNM_FUNC_HELP_END }
@@ -881,11 +881,11 @@ gnumeric_r_pnbinom (GnmFuncEvalInfo *ei, GnmValue const * const *args)
 
 static GnmFuncHelp const help_r_qnbinom[] = {
        { GNM_FUNC_HELP_NAME, F_("R.QNBINOM:probability quantile function of the negative binomial 
distribution") },
-       { GNM_FUNC_HELP_ARG, F_("p:probability") },
+       { GNM_FUNC_HELP_ARG, F_("p:probability or natural logarithm of the probability") },
        { GNM_FUNC_HELP_ARG, F_("n:the number of trials") },
        { GNM_FUNC_HELP_ARG, F_("psuc:the probability of success in each trial") },
        { GNM_FUNC_HELP_ARG, F_("lower_tail:if true (the default), the lower tail of the distribution is 
considered") },
-       { GNM_FUNC_HELP_ARG, F_("log_p:if true, log of the probability is used") },
+       { GNM_FUNC_HELP_ARG, F_("log_p:if true, @{p} is the natural logarithm of the probability; defaults to 
false") },
        { GNM_FUNC_HELP_DESCRIPTION, F_("This function returns the probability quantile function, i.e., the 
inverse of the cumulative distribution function, of the negative binomial distribution.") },
        { GNM_FUNC_HELP_SEEALSO, "R.DNBINOM,R.PNBINOM" },
        { GNM_FUNC_HELP_END }
@@ -961,12 +961,12 @@ gnumeric_r_phyper (GnmFuncEvalInfo *ei, GnmValue const * const *args)
 
 static GnmFuncHelp const help_r_qhyper[] = {
        { GNM_FUNC_HELP_NAME, F_("R.QHYPER:probability quantile function of the hypergeometric distribution") 
},
-       { GNM_FUNC_HELP_ARG, F_("p:probability") },
+       { GNM_FUNC_HELP_ARG, F_("p:probability or natural logarithm of the probability") },
        { GNM_FUNC_HELP_ARG, F_("r:the number of red balls") },
        { GNM_FUNC_HELP_ARG, F_("b:the number of black balls") },
        { GNM_FUNC_HELP_ARG, F_("n:the number of balls drawn") },
        { GNM_FUNC_HELP_ARG, F_("lower_tail:if true (the default), the lower tail of the distribution is 
considered") },
-       { GNM_FUNC_HELP_ARG, F_("log_p:if true, log of the probability is used") },
+       { GNM_FUNC_HELP_ARG, F_("log_p:if true, @{p} is the natural logarithm of the probability; defaults to 
false") },
        { GNM_FUNC_HELP_DESCRIPTION, F_("This function returns the probability quantile function, i.e., the 
inverse of the cumulative distribution function, of the hypergeometric distribution.") },
        { GNM_FUNC_HELP_SEEALSO, "R.DHYPER,R.PHYPER" },
        { GNM_FUNC_HELP_END }
@@ -1035,10 +1035,10 @@ gnumeric_r_pgeom (GnmFuncEvalInfo *ei, GnmValue const * const *args)
 
 static GnmFuncHelp const help_r_qgeom[] = {
        { GNM_FUNC_HELP_NAME, F_("R.QGEOM:probability quantile function of the geometric distribution") },
-       { GNM_FUNC_HELP_ARG, F_("p:probability") },
+       { GNM_FUNC_HELP_ARG, F_("p:probability or natural logarithm of the probability") },
        { GNM_FUNC_HELP_ARG, F_("psuc:the probability of success in each trial") },
        { GNM_FUNC_HELP_ARG, F_("lower_tail:if true (the default), the lower tail of the distribution is 
considered") },
-       { GNM_FUNC_HELP_ARG, F_("log_p:if true, log of the probability is used") },
+       { GNM_FUNC_HELP_ARG, F_("log_p:if true, @{p} is the natural logarithm of the probability; defaults to 
false") },
        { GNM_FUNC_HELP_DESCRIPTION, F_("This function returns the probability quantile function, i.e., the 
inverse of the cumulative distribution function, of the geometric distribution.") },
        { GNM_FUNC_HELP_SEEALSO, "R.DGEOM,R.PGEOM" },
        { GNM_FUNC_HELP_END }
@@ -1137,12 +1137,12 @@ gnumeric_r_ptukey (GnmFuncEvalInfo *ei, GnmValue const * const *args)
 
 static GnmFuncHelp const help_r_qtukey[] = {
        { GNM_FUNC_HELP_NAME, F_("R.QTUKEY:probability quantile function of the Studentized range 
distribution") },
-       { GNM_FUNC_HELP_ARG, F_("p:probability") },
+       { GNM_FUNC_HELP_ARG, F_("p:probability or natural logarithm of the probability") },
        { GNM_FUNC_HELP_ARG, F_("nmeans:the number of means") },
        { GNM_FUNC_HELP_ARG, F_("df:the number of degrees of freedom of the distribution") },
        { GNM_FUNC_HELP_ARG, F_("nranges:the number of ranges; default is 1") },
        { GNM_FUNC_HELP_ARG, F_("lower_tail:if true (the default), the lower tail of the distribution is 
considered") },
-       { GNM_FUNC_HELP_ARG, F_("log_p:if true, log of the probability is used") },
+       { GNM_FUNC_HELP_ARG, F_("log_p:if true, @{p} is the natural logarithm of the probability; defaults to 
false") },
        { GNM_FUNC_HELP_DESCRIPTION, F_("This function returns the probability quantile function, i.e., the 
inverse of the cumulative distribution function, of the Studentized range distribution.") },
        { GNM_FUNC_HELP_SEEALSO, "R.PTUKEY" },
        { GNM_FUNC_HELP_END }
@@ -1165,11 +1165,11 @@ gnumeric_r_qtukey (GnmFuncEvalInfo *ei, GnmValue const * const *args)
 
 static GnmFuncHelp const help_r_qcauchy[] = {
        { GNM_FUNC_HELP_NAME, F_("R.QCAUCHY:probability quantile function of the Cauchy distribution") },
-       { GNM_FUNC_HELP_ARG, F_("p:probability") },
+       { GNM_FUNC_HELP_ARG, F_("p:probability or natural logarithm of the probability") },
        { GNM_FUNC_HELP_ARG, F_("location:the center of the distribution") },
        { GNM_FUNC_HELP_ARG, F_("scale:the scale parameter of the distribution") },
        { GNM_FUNC_HELP_ARG, F_("lower_tail:if true (the default), the lower tail of the distribution is 
considered") },
-       { GNM_FUNC_HELP_ARG, F_("log_p:if true, log of the probability is used") },
+       { GNM_FUNC_HELP_ARG, F_("log_p:if true, @{p} is the natural logarithm of the probability; defaults to 
false") },
        { GNM_FUNC_HELP_DESCRIPTION, F_("This function returns the probability quantile function, i.e., the 
inverse of the cumulative distribution function, of the Cauchy distribution.") },
        { GNM_FUNC_HELP_SEEALSO, "R.DCAUCHY,R.PCAUCHY" },
        { GNM_FUNC_HELP_END }
@@ -1245,12 +1245,12 @@ gnumeric_r_psnorm (GnmFuncEvalInfo *ei, GnmValue const * const *args)
 
 static GnmFuncHelp const help_r_qsnorm[] = {
        { GNM_FUNC_HELP_NAME, F_("R.QSNORM:probability quantile function of the skew-normal distribution") },
-       { GNM_FUNC_HELP_ARG, F_("p:probability") },
+       { GNM_FUNC_HELP_ARG, F_("p:probability or natural logarithm of the probability") },
        { GNM_FUNC_HELP_ARG, F_("shape:the shape parameter of the distribution") },
        { GNM_FUNC_HELP_ARG, F_("location:the location parameter of the distribution") },
        { GNM_FUNC_HELP_ARG, F_("scale:the scale parameter of the distribution") },
        { GNM_FUNC_HELP_ARG, F_("lower_tail:if true (the default), the lower tail of the distribution is 
considered") },
-       { GNM_FUNC_HELP_ARG, F_("log_p:if true, log of the probability is used") },
+       { GNM_FUNC_HELP_ARG, F_("log_p:if true, @{p} is the natural logarithm of the probability; defaults to 
false") },
        { GNM_FUNC_HELP_DESCRIPTION, F_("This function returns the probability quantile function, i.e., the 
inverse of the cumulative distribution function, of the skew-normal distribution.") },
        { GNM_FUNC_HELP_SEEALSO, "R.DSNORM,R.PSNORM" },
        { GNM_FUNC_HELP_END }
@@ -1323,11 +1323,11 @@ gnumeric_r_pst (GnmFuncEvalInfo *ei, GnmValue const * const *args)
 
 static GnmFuncHelp const help_r_qst[] = {
        { GNM_FUNC_HELP_NAME, F_("R.QST:probability quantile function of the skew-t distribution") },
-       { GNM_FUNC_HELP_ARG, F_("p:probability") },
+       { GNM_FUNC_HELP_ARG, F_("p:probability or natural logarithm of the probability") },
        { GNM_FUNC_HELP_ARG, F_("n:the number of degrees of freedom of the distribution") },
        { GNM_FUNC_HELP_ARG, F_("shape:the shape parameter of the distribution") },
        { GNM_FUNC_HELP_ARG, F_("lower_tail:if true (the default), the lower tail of the distribution is 
considered") },
-       { GNM_FUNC_HELP_ARG, F_("log_p:if true, log of the probability is used") },
+       { GNM_FUNC_HELP_ARG, F_("log_p:if true, @{p} is the natural logarithm of the probability; defaults to 
false") },
        { GNM_FUNC_HELP_DESCRIPTION, F_("This function returns the probability quantile function, i.e., the 
inverse of the cumulative distribution function, of the skew-t distribution.") },
        { GNM_FUNC_HELP_SEEALSO, "R.DST,R.PST" },
        { GNM_FUNC_HELP_END }